CN116633425A

CN116633425A - Satellite communication interference prediction method, communication adjustment method, device and medium

Info

Publication number: CN116633425A
Application number: CN202310916693.8A
Authority: CN
Inventors: 张新; 杨嘉毅; 陈德安; 焦石; 马浩元
Original assignee: Beijing Ultimate Frontier Deep Space Technology Co ltd
Current assignee: Zhongguancun Technology Leasing Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2023-08-22
Anticipated expiration: 2043-07-25
Also published as: CN116633425B

Abstract

The invention relates to the technical field of satellite communication, in particular to a satellite communication interference prediction method, a communication adjustment method, a device and a medium, and aims to solve the problem of how to improve the accuracy of satellite communication interference prediction. After the rough calculation solar time influence range and the rough calculation solar space influence range of the sun relative to the target satellite are obtained, whether the communication link between the target satellite and the terminal communicating with the target satellite is in the rough calculation solar space influence range or not is judged, when the communication link is in the rough calculation solar space influence range, whether a shielding object shielding solar is present or not is detected, the rough calculation solar time influence range is corrected to be a refined calculation solar time influence range based on a detection result, the rough calculation solar space influence range is corrected to be a refined calculation solar space influence range, and an interference prediction result is obtained based on the refined calculation solar time influence range and the refined calculation solar space influence range. The interference of the solar energy can be accurately predicted.

Description

Satellite communication interference prediction method, communication adjustment method, device and medium

Technical Field

The invention relates to the technical field of satellite communication, and particularly provides a satellite communication interference prediction method, a communication adjustment method, a device and a medium.

Background

In the field of low orbit satellite communications, interference from solar activity is often experienced, resulting in problems with communications between satellites and ground stations, namely, interference from solar radiation.

Referring to fig. 3, fig. 3 is a schematic diagram of a method for predicting whether a satellite is interfered by the sun in the prior art. As shown in fig. 3, the low-orbit satellites a and B belong to the same constellation, and can communicate with the ground station and also with each other. The existing method for predicting whether the satellite is interfered by the sun is to monitor whether the included angle alpha between the connection line of the sun and the satellite and the connection line of the satellite and the communication terminal is within +/-0.3 degrees.

However, this approach often does not take into account the effect of spatial occlusion, resulting in an inaccurate prediction process.

Accordingly, there is a need in the art for a new satellite communication interference prediction scheme to address the above-described problems.

Disclosure of Invention

The present invention has been made to overcome the above-mentioned drawbacks, and provides a solution or at least partially solves the problem of how to improve the accuracy of satellite communication interference prediction.

In a first aspect, the present invention provides a satellite communication interference prediction method, the method comprising:

acquiring a rough solar energy and solar energy space influence range relative to a target satellite in the rough solar energy and solar energy time influence range;

judging whether a communication link between the target satellite and a terminal communicating with the target satellite is in the rough calculation day-to-space influence range or not when the communication link between the target satellite and the terminal communicating with the target satellite is in the rough calculation day-to-space influence range;

if the communication link is judged to be in the influence range of the rough calculation day time, detecting whether a shielding object shielding the day time exists in the influence range of the rough calculation day time and the space;

selecting corresponding parameters based on detection results to calculate, correcting the coarse-calculation solar time influence range into a fine-calculation solar time influence range, and correcting the coarse-calculation solar space influence range into a fine-calculation solar space influence range;

and obtaining an interference prediction result based on the refined solar time influence range and the refined solar space influence range.

In one technical scheme of the satellite communication interference prediction method, the obtaining an interference prediction result based on the refined solar time influence range and the refined solar space influence range includes:

Judging whether the shielding object completely shields the solar energy according to the refined solar energy time influence range and the refined solar energy space influence range;

when the shielding object completely shields the solar cell, judging that the solar cell is not interfered;

when the shielding object can not completely shield the solar energy, judging whether the influence range of the precisely calculated solar energy time is larger than a preset duration threshold value;

when the influence range of the refined solar time is larger than a preset duration threshold, determining that solar interference exists;

and when the influence range of the refined solar time is smaller than or equal to the duration threshold, judging that the solar interference does not exist.

In one technical scheme of the satellite communication interference prediction method, the method further comprises:

and when the interference of the solar energy exists, the refined solar energy time influence range, the refined solar energy space influence range, the solar energy frequency influence range and the intensity of the solar energy on different frequencies are used as the interference prediction result.

In one aspect of the satellite communication interference prediction method, the method further includes obtaining the frequency influence range of the solar energy and the intensity of the solar energy on different frequencies within the refined solar energy time influence range according to the following steps:

Obtaining solar radiation frequency according to the basic radiation frequency of solar black seeds, solar flare and sun in the influence range of the refined solar time;

acquiring solar radiation intensity according to the solar radiation frequency, the basic radiation intensity of the sun, the solar blackens and the solar flare in the refined solar time influence range; wherein the solar radiation intensity is a function of the frequency of solar radiation;

acquiring the solar radiation frequency influence range according to the solar radiation frequency in the refined solar radiation time influence range;

and acquiring the intensity of the solar radiation at different frequencies according to the solar radiation intensity within the influence range of the refined solar radiation time.

In one technical scheme of the satellite communication interference prediction method, the selecting corresponding parameters based on the detection result to calculate, correcting the coarse-calculation solar time influence range to be a fine-calculation solar time influence range, and correcting the coarse-calculation solar space influence range to be a fine-calculation solar space influence range includes:

when a shielding object shielding the solar energy exists, correcting the rough solar energy time influence range into a fine solar energy time influence range according to the space parameter and the shielding range of the shielding object, the space parameter of the sun, the space parameter of the target satellite and the space parameter of a terminal communicating with the target satellite in the rough solar energy time influence range, and correcting the rough solar energy space influence range into a fine solar energy space influence range;

When no shielding object shielding the solar energy is present, correcting the rough solar energy time influence range into a fine solar energy time influence range according to the solar space parameter in the rough solar energy time influence range, the target satellite space parameter and the terminal space parameter, and correcting the rough solar energy time influence range into a fine solar energy time influence range.

In one aspect of the satellite communication interference prediction method, the spatial parameter includes a basic spatial coordinate and/or a movement direction and/or a movement speed within the coarse-calculation time influence range.

In one technical scheme of the satellite communication interference prediction method, the method further comprises the steps of obtaining basic space coordinates, movement directions and movement speeds of the target satellite in the rough calculation of the time influence range of the solar energy according to the following steps:

acquiring initial position parameters of all orbits of a constellation according to constellation configuration, constellation orbit number and constellation orbit parameters of the constellation where the target satellite is located;

acquiring orbit initial position parameters of all satellites according to the initial position parameters of all orbits, the satellite number of all orbits of the constellation and the constellation orbit parameters;

And acquiring basic space coordinates, movement directions and movement speeds of the target satellite in the rough calculation solar time influence range according to the orbit initial position parameters of each satellite.

In one technical scheme of the satellite communication interference prediction method, the obtaining the rough solar energy space influence range relative to the target satellite in the rough solar energy time influence range includes:

and acquiring the rough solar time influence range according to the space coordinates of the sun, the equivalent radiation area of the sun and the basic space coordinates of the target satellite in the rough solar time influence range.

In one technical scheme of the satellite communication interference prediction method, the method further comprises the step of obtaining the equivalent radiation area according to the following steps:

acquiring a solar three-dimensional shape according to the solar equatorial radius and the solar polar radius within the influence range of the roughly calculated solar time;

taking the basic space coordinates of the target satellite as a reference point;

acquiring the cross section area of the sun passing through the center of mass according to the reference point and the three-dimensional shape of the sun;

and obtaining the equivalent radiation area according to the cross-centroid section area of the sun.

In a second aspect, the present invention provides a communication adjustment method, the method comprising:

according to the satellite communication interference prediction method in the satellite communication interference prediction method technical scheme, an interference prediction result of the target satellite is obtained;

and when the interference prediction result is that the solar interference exists, adjusting the communication process of the target satellite according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the solar intensity on different frequencies in the interference prediction result.

In one technical scheme of the communication adjustment method, the adjusting the communication process of the target satellite according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the intensity of solar on different frequencies in the interference prediction result includes:

judging whether the communication frequency of the target satellite can be changed to avoid the solar cell according to the solar cell frequency influence range, the available communication frequency of the target satellite and the receivable frequency of a terminal communicating with the target satellite;

if yes, changing the communication frequency of the target satellite;

If not, the communication process of the target satellite is adjusted according to the intensity of the solar energy on different frequencies, the refined solar energy time influence range and the refined solar energy space influence range.

In one technical scheme of the communication adjustment method, the adjusting the communication process of the target satellite according to the intensity of the solar cell on different frequencies, the refined solar cell time influence range and the refined solar cell space influence range includes:

judging whether the increase of the communication power of the target satellite can avoid the solar cell according to the intensity of the solar cell on different frequencies, the available communication power of the target satellite and the receivable power of the terminal;

if yes, increasing the communication power of the target satellite;

if not, the communication process of the target satellite is adjusted according to the refined solar time influence range and the refined solar space influence range.

In one technical scheme of the communication adjustment method, the adjusting the communication process of the target satellite according to the refined solar time influence range and the refined solar space influence range includes:

Judging whether the terminal can avoid solar cell according to the refined solar cell time influence range, the refined solar cell space influence range and the available communication link of the target satellite;

if yes, modifying a terminal in communication with the target satellite;

if not, judging whether the modification of the communication path of the target satellite can avoid the solar cell;

if yes, modifying the communication path of the target satellite;

and if not, adjusting the communication process of the target satellite according to the mobility of the terminal.

In one aspect of the above communication adjustment method, the adjusting the communication process of the target satellite according to the mobility of the terminal includes:

judging whether the terminal can move or not according to the mobility of the terminal;

if yes, the position of the terminal is adjusted;

if not, judging whether the track and the posture of the target satellite can be changed to avoid the solar cell;

the orbit and attitude of the target satellite are adjusted when the solar cell can be avoided by changing the orbit and attitude of the target satellite.

In one aspect of the above communication adjustment method, the method further includes:

And when the solar cell is over, the state of the target satellite is restored to the state before the communication process is adjusted.

In one aspect of the above communication adjustment method, the method further includes acquiring an available communication link, an available communication frequency, and an available communication power of the target satellite according to:

acquiring an available communication link of the target satellite according to constellation communication network topology of a constellation in which the target satellite is located and hardware parameters of the target satellite;

and acquiring the available communication frequency and the available communication power of the target satellite according to the available communication links and the hardware parameters of the target satellite.

and when the interference of the solar energy is existed, the solar energy forecast is sent out.

In a third aspect, a control device is provided, which comprises at least one processor and at least one storage device, the storage device being adapted to store a plurality of program codes, the program codes being adapted to be loaded and executed by the processor to perform the satellite communication interference prediction method according to any one of the above-mentioned aspects of the satellite communication interference prediction method or the communication adjustment method according to any one of the above-mentioned aspects of the communication adjustment method.

In a fourth aspect, a computer readable storage medium is provided, in which a plurality of program codes are stored, the program codes being adapted to be loaded and executed by a processor to perform the satellite communication interference prediction method according to any one of the above-mentioned aspects of the satellite communication interference prediction method or the communication adjustment method according to any one of the above-mentioned aspects of the communication adjustment method.

The technical scheme provided by the invention has at least one or more of the following beneficial effects:

in the technical scheme of implementing the invention, after the rough solar energy and solar energy space influence range relative to a target satellite in the rough solar energy time influence range is acquired, whether a communication link between the target satellite and a terminal communicating with the target satellite is in the rough solar energy and solar energy space influence range is judged, when the communication link is in the rough solar energy and solar energy space influence range, whether a shielding object shielding solar energy exists is detected, the rough solar energy and solar energy space influence range is corrected to be a refined solar energy and solar energy space influence range based on a detection result, the rough solar energy and solar energy space influence range is corrected to be a refined solar energy and solar energy space influence range, and an interference prediction result is obtained based on the refined solar energy and solar energy space influence range. Through the configuration mode, the influence of the shielding object shielding the solar energy on the solar energy interference is fully considered in the process of predicting the solar energy interference, and the solar energy interference can be predicted more accurately. Meanwhile, the accurate solar time influence range and the accurate solar space influence range are obtained on the premise of considering the shielding object shielding solar, so that the communication adjustment process based on the interference prediction result is more accurate, and the influence of solar on the satellite communication process can be effectively reduced.

Drawings

The present disclosure will become more readily understood with reference to the accompanying drawings. As will be readily appreciated by those skilled in the art: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. Wherein:

FIG. 1 is a flow chart illustrating the main steps of a satellite communication interference prediction method according to an embodiment of the present invention;

FIG. 2 is a flow chart of the main steps of a communication adjustment method according to one embodiment of the present invention;

FIG. 3 is a schematic diagram of a prior art method of predicting whether a satellite is subject to solar interference;

FIG. 4 is a schematic diagram of a method for predicting whether a target satellite is disturbed by a Rabdosia in view of an obstruction;

FIG. 5 is a graph showing the change of cross-sectional area of the center of mass of the sun during non-solar activity years with reference points;

FIG. 6 is a schematic flow chart of the main steps of acquiring the equivalent radiation area of the sun according to one implementation of an embodiment of the invention;

FIG. 7 is a schematic flow chart of the main steps of acquiring basic spatial coordinates, movement direction and movement speed of the sun according to one implementation of an embodiment of the invention;

FIG. 8 is a schematic flow chart of main steps for acquiring solar radiation frequency and solar radiation intensity according to an implementation of an embodiment of the invention;

FIG. 9 is a schematic diagram of an example of a model of an obstruction, for example a moon, according to one implementation of an embodiment of the invention;

FIG. 10 is a flow chart of the main steps for acquiring the spatial parameters of a target satellite according to one implementation of an embodiment of the invention;

FIG. 11 is a flow chart of the main steps of acquiring available communication frequencies and available communication power of a target satellite according to one implementation of an embodiment of the invention;

FIG. 12 is a flow chart of main steps for acquiring spatial parameters of a terminal according to an embodiment of the present invention;

fig. 13 is a schematic flow chart of main steps of a communication adjustment method according to an implementation manner of the embodiment of the present invention.

Detailed Description

Some embodiments of the invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.

In the description of the present invention, a "module," "processor" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, or software components, such as program code, or a combination of software and hardware. The processor may be a central processor, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor may be implemented in software, hardware, or a combination of both. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, and the like. The term "a and/or B" means all possible combinations of a and B, such as a alone, B alone or a and B. The term "at least one A or B" or "at least one of A and B" has a meaning similar to "A and/or B" and may include A alone, B alone or A and B. The singular forms "a", "an" and "the" include plural referents.

Referring to fig. 1, fig. 1 is a schematic flow chart of main steps of a satellite communication interference prediction method according to an embodiment of the present invention. As shown in fig. 1, the satellite communication interference prediction method in the embodiment of the present invention mainly includes the following steps S101 to S105.

Step S101: and acquiring a roughly calculated solar time-in-day space influence range of the sun relative to the target satellite in the roughly calculated solar time influence range.

In this embodiment, the solar energy may be roughly calculated with respect to the solar energy space influence range of the target satellite, to obtain a roughly calculated solar energy space influence range.

In one embodiment, the roughly calculated solar elevation space influence range is obtained according to the space coordinates of the sun, the equivalent radiation area of the sun and the basic space coordinates of the target satellite.

Step S102: and judging whether the communication link between the target satellite and the terminal communicating with the target satellite is in the rough calculation solar time influence range or not.

In this embodiment, referring to fig. 3, fig. 3 is a schematic diagram of a method for predicting whether a satellite is interfered by the sun in the prior art. As shown in fig. 3, it may be determined whether the communication link of the target satellite and the terminal with which it communicates is within the rough weather space influence range based on the rough weather range. That is, it is determined whether the target satellite enters an angle range of α= ±0.3 degrees. Wherein A, B in fig. 3 are all satellites.

In one embodiment, the terminals may be land-based terminals, sea-based terminals, air-based terminals, space-based terminals, and the like.

Step S103: if the communication link is judged to be in the influence range of the rough calculation day time, whether a shielding object shielding the day time exists is detected in the influence range of the rough calculation day time.

In this embodiment, referring to fig. 4, fig. 4 is a schematic diagram of a method for predicting whether a target satellite is interfered by solar interference by considering a shroud. As shown in fig. 4, if the communication link is within the rough day space influence, it may be determined whether there is an obstruction that obscures the day. That is, it is determined whether or not there is a shade within the angle range of α= ±0.3 degrees. Wherein A, B in fig. 4 are all satellites.

In one embodiment, the obstruction may be a moon, an artificial spacecraft, a space debris, or the like. The artificial spacecraft may include artificial satellites, rockets, space stations, space ships, various types of detectors, etc., but does not include the spacecraft in the constellation model. Space debris refers to uncontrollable ground-surrounding flying objects, including various types of artificial spacecraft which are abandoned, independent uncontrollable ground-surrounding flying objects which are separated from the artificial spacecraft, space garbage and the like.

Step S104: and selecting corresponding parameters based on the detection result to calculate, correcting the coarse-calculation solar time influence range into the fine-calculation solar time influence range, and correcting the coarse-calculation solar space influence range into the fine-calculation solar space influence range.

In this embodiment, the corresponding parameters may be selected for calculation based on the detection result, the rough calculation day time influence range is corrected to the refined calculation day time influence range, and the rough calculation day space influence range is corrected to the refined calculation day space influence range.

Step S105: and obtaining an interference prediction result based on the refined solar time influence range and the refined solar space influence range.

In this embodiment, the interference prediction result may be obtained according to the refined solar time influence range and the refined solar space influence range.

Based on the above steps S101-S105, in the embodiment of the present invention, after obtaining a rough solar space influence range relative to a target satellite within the rough solar time influence range, it is determined whether a communication link between the target satellite and a terminal communicating with the target satellite is within the rough solar space influence range, when the communication link is within the rough solar space influence range, whether a shielding object shielding solar space exists is detected, the rough solar time influence range is corrected to a refined solar time influence range based on the detection result, the rough solar space influence range is corrected to a refined solar space influence range, and an interference prediction result is obtained based on the refined solar time influence range and the refined solar space influence range. Through the configuration mode, the influence of the shielding object shielding the solar energy on the solar energy interference is fully considered in the process of predicting the solar energy interference, and the solar energy interference can be predicted more accurately.

Step S104 and step S105 are further described below.

In one implementation of the embodiment of the present invention, step S104 may include the following steps S1041 and S1042:

step S1041: when a shielding object shielding the solar energy exists, correcting the rough solar energy time influence range into a fine solar energy time influence range according to the space parameters and the shielding range of the shielding object, the space parameters of the sun, the space parameters of the target satellite and the space parameters of the terminal communicating with the target satellite, and correcting the rough solar energy space influence range into the fine solar energy space influence range.

Step S1042: when no shielding object shielding the solar energy exists, the rough solar energy time influence range is corrected to be a refined solar energy time influence range according to the space parameters of the sun, the space parameters of the target satellite and the space parameters of the terminal, and the rough solar energy time influence range is corrected to be a refined solar energy time influence range.

In this embodiment, if there is an occlusion object for occluding the solar cell, the calculation may be performed according to the spatial parameters of the sun, the target satellite, the occlusion object, the terminal, and the occlusion range of the occlusion object, the calculated solar cell time influence range is corrected to the calculated solar cell time influence range, and the calculated solar cell space influence range is corrected to the calculated solar cell space influence range. If the shielding object shielding the solar energy is not present, the calculation can be performed according to the space parameters of the sun, the target satellite and the terminal, the influence range of the roughly calculated solar energy is corrected to be the influence range of the finely calculated solar energy, and the influence range of the roughly calculated solar energy is corrected to be the influence range of the finely calculated solar energy.

In one embodiment, the spatial parameters may include basic spatial coordinates, direction of motion, speed of motion. When the rough calculation solar time influence range is corrected to the refined solar time influence range, and the rough calculation solar space influence range is corrected to the refined solar space influence range, the influence of shielding objects shielding solar is considered, and meanwhile, the influence of space parameters (basic space coordinates) and motion parameters (motion direction and motion speed) are comprehensively considered, so that the refined solar space influence range has higher precision.

In one implementation of the embodiment of the present invention, step S105 may include the following steps S1051 and S1055:

step S1051: judging whether the shielding object completely shields the solar energy according to the influence range of the refined solar energy time and the influence range of the refined solar energy space.

Step S1052: and when the shielding object completely shields the solar energy, judging that the solar energy interference does not exist.

Step S1053: when the shielding object can not completely shield the solar energy, judging whether the influence range of the precisely calculated solar energy time is larger than a preset time threshold.

Step S1054: and when the refined time influence range of the solar energy is larger than a preset time threshold, judging that the solar energy interference exists.

Step S1055: and when the refined time influence range of the solar energy is smaller than or equal to the time threshold value, judging that the solar energy interference does not exist.

In this embodiment, reference may be made to fig. 9, and fig. 9 is a schematic diagram of an example of a model of a shelter according to an embodiment of the present invention. As shown in fig. 9, whether the shielding object completely shields the solar energy can be judged according to the accurate solar energy space influence range. I.e., moon in position C in fig. 9, then the shroud can be considered to be completely blocking the slush; when the moon is in the B position, then the shielding object can be considered to partially shield the solar energy; when the moon is in the a position then the shield can be considered to be free of any shielding of the slush.

When the shielding object completely shields the solar energy, then the solar energy interference can be judged to be absent. If the shielding object can not completely shield the solar energy, whether the influence range of the calculated solar energy time is larger than a preset duration threshold value can be judged according to the influence range of the calculated solar energy time. If the duration threshold is greater, it may be determined that a Rabdosia interference is present. If the time duration threshold is less than or equal to the time duration threshold, then the effect of the slush is considered acceptable and it may be determined that there is no disturbance of the slush. The time length threshold can be set by those skilled in the art according to the needs of the actual application.

In one embodiment, when it is determined that there is a solar interference, the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the intensity of solar on different frequencies can be used as interference prediction results.

In one embodiment, referring to fig. 5, fig. 5 is a graph showing the change in cross-sectional area of the centroid of the sun with reference to a reference point during a non-solar activity. As the sun's activity changes, the sun approaches a sphere during active years and an ellipsoid during inactive years. Therefore, the solar equatorial radius and the solar polar radius also change. As shown in fig. 5, the equivalent radiation area of the sun can be obtained according to time and the position of the reference point, wherein, the reference point a and the reference point B in fig. 5 can be target satellites. As can be seen in fig. 5, the cross-sectional area of the centroid of the sun will vary from time to time and from the reference point, and is not constant.

In one embodiment, the equivalent radiation area of the sun may be obtained according to the following steps S201 to S204.

Step S201: and obtaining the three-dimensional shape of the sun according to the radius of the sun equator and the radius of the sun pole.

Step S202: the basic space coordinates of the target satellite are used as reference points.

Step S203: and obtaining the cross section area of the sun passing through the center of mass according to the reference point and the three-dimensional shape of the sun.

Step S204: and obtaining the equivalent radiation area according to the area of the cross-center of mass section of the sun.

In this embodiment, reference may be made to fig. 6, and fig. 6 is a schematic flow chart of main steps for obtaining an equivalent radiation area of the sun according to an embodiment of the present invention. As shown in fig. 6, the solar equatorial radius and the solar polar radius can be input according to time, so as to calculate the three-dimensional shape of the sun, and the cross-centroid section area of the sun is calculated after the basic space coordinates of the target satellite are input as reference points.

In one embodiment, reference may be made to fig. 7, where fig. 7 is a schematic flow chart of the main steps for obtaining the basic spatial coordinates, movement direction and movement speed of the sun according to an embodiment of the present invention. As shown in fig. 7, the orbit of the earth revolution around the sun is in accordance with the kepler orbit three law, so that the orbit of the earth revolution in the sun coordinate system is converted into the earth coordinate system, the sun orbit equation can be obtained, and further, the basic space coordinate of the sun, the movement direction of the sun, the movement speed of the sun and other information at any time (time) can be obtained.

In one embodiment, the fundamental radiation frequency of the sun and the fundamental radiation intensity of the sun are time-varying over a long period of time, while the probability of occurrence of solar blackness, solar flare, is time-varying over a short period of time. The periodicity of the two is superimposed in time to calculate the solar radiation frequency and the solar radiation intensity at a certain moment (time). Wherein solar black and solar flare have an effect on both the solar radiation frequency and the solar radiation intensity, which is a function of the change in solar radiation frequency. While the solar radiation frequency and the solar frequency influence range are equivalent, the solar radiation intensity and the intensity of solar at different frequencies are equivalent. Thus, the frequency influence range of the solar and the intensity of the solar on different frequencies can be obtained according to the following steps S301 to S304.

Step S301: and acquiring the solar radiation frequency according to the solar black sun, the solar flare and the basic radiation frequency of the sun.

Step S302: acquiring solar radiation intensity according to solar radiation frequency, basic solar radiation intensity, solar blackness and solar flare; wherein the intensity of solar radiation is a function of the frequency of the solar radiation.

Step S303: the solar radiation frequency is used for acquiring the solar frequency influence range.

Step S304: the intensity of the solar radiation at different frequencies is obtained from the intensity of the solar radiation.

In this embodiment, reference may be made to fig. 8, fig. 8 being a schematic flow chart of main steps for obtaining solar radiation frequency and solar radiation intensity according to an embodiment of the present invention. As shown in fig. 8, after the solar black, solar flare and solar basic radiation frequency at the same time are input, the solar radiation frequency is obtained; obtaining solar radiation intensity according to solar radiation frequency, solar blackness and solar flare; the frequency range of the solar radiation can be obtained according to the frequency of the solar radiation, and the intensity of the solar radiation on different frequencies can be obtained according to the intensity of the solar radiation.

In one embodiment, since the orbit of the shade also conforms to the kepler equation, the method for obtaining the equivalent radiation area of the sun can be referred to, the shielding range of the shade can be obtained, and the space parameters of the shade can be obtained by referring to the method for obtaining the space parameters of the sun.

In one embodiment, the basic spatial coordinates, the moving direction, and the moving speed of the target satellite may be acquired according to the following steps S401 to S403.

Step S401: and acquiring initial position parameters of all orbits of the constellation according to the constellation configuration, the constellation orbit number and the constellation orbit parameters of the constellation in which the target satellite is positioned.

Step S402: and acquiring the orbit initial position parameters of the satellites according to the initial position parameters of the satellites, the satellite number of the satellites in the orbits of the constellation and the constellation orbit parameters.

Step S403: and acquiring the basic space coordinates, the movement direction and the movement speed of the target satellite according to the orbit initial position parameters of each satellite.

In this embodiment, referring to fig. 10, fig. 10 is a schematic flow chart of main steps for acquiring a spatial parameter of a target satellite according to an embodiment of the present invention. A constellation is a network of satellites, i.e. entities affected in the process of slush. As shown in fig. 10, initial position parameters of each track can be calculated according to the constellation configuration, the constellation track number and the constellation track parameters; calculating the orbit initial position parameters of each satellite orbit according to the satellite number of each orbit of the constellation, the satellite number of each orbit of the constellation and the constellation orbit parameters; the basic space coordinates, movement direction and movement speed of a certain satellite (target satellite) are calculated based on the time and the orbit initial position parameters of each satellite orbit. Wherein, under the geocentric coordinate system, the satellite orbit accords with the kepler orbit equation.

In one embodiment, referring to fig. 12, fig. 12 is a schematic flow chart of main steps for acquiring a spatial parameter of a terminal according to an embodiment of the present invention. As shown in fig. 12, a terminal activity trajectory function may be acquired according to time, and a terminal space coordinate, a terminal movement direction, and a terminal movement speed (a basic space coordinate, a movement direction, and a movement speed of a terminal) may be calculated according to the terminal activity trajectory function.

Further, the invention also provides a communication adjusting method.

Referring to fig. 2, fig. 2 is a schematic flow chart of main steps of a communication adjusting method according to an embodiment of the present invention. As shown in fig. 2, the satellite communication interference prediction method in the embodiment of the present invention mainly includes the following steps S501 to S502.

Step S501: according to the satellite communication interference prediction method in the satellite communication interference prediction method embodiment, the interference prediction result of the target satellite is obtained.

Step S502: and when the interference prediction result is that the solar interference exists, adjusting the communication process of the target satellite according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the solar intensity on different frequencies in the interference prediction result.

In this embodiment, the interference prediction result of the target satellite may be obtained according to the satellite communication interference prediction method described above. If the interference prediction result is that the solar interference exists, the communication process of the target satellite can be adjusted according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the solar intensity on different frequencies in the interference prediction result, so that the target satellite can effectively avoid the solar interference.

In one embodiment, if it is determined that there is a slush disturbance, a slush forecast may be issued.

Based on the steps S501-S502, according to the method in the satellite communication interference prediction method embodiment, the interference prediction result of the target satellite is obtained, and when the interference prediction result is that the solar interference exists, the communication process of the target satellite is adjusted according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the intensity of solar on different frequencies in the interference prediction result. Through the configuration mode, in the embodiment of the invention, the interference prediction result is obtained under the premise of considering the shielding object shielding the solar cell, so that the communication adjustment process based on the interference prediction result is more accurate, and meanwhile, the influence of solar cell on the satellite communication process can be effectively reduced by adjusting the communication process of the target satellite based on the accurate solar cell time influence range, the accurate solar cell space influence range, the solar cell frequency influence range and the intensity of solar cell on different frequencies.

Step S502 is further described below.

In one implementation of the embodiment of the present invention, step S502 may further include the following steps S5021 to S5023:

step S5021: judging whether the change of the communication frequency of the target satellite can avoid the solar cell according to the solar cell frequency influence range, the available communication frequency of the target satellite and the receivable frequency of the terminal communicating with the target satellite; if yes, jumping to step S5022; if not, go to step S5023.

Step S5022: changing the communication frequency of a target satellite

Step S5023: and adjusting the communication process of the target satellite according to the intensity of the solar energy on different frequencies and the accurate solar energy space influence range.

In the present embodiment, it is first considered whether or not changing the communication frequency of the target satellite can avoid the solar cell.

In one embodiment, step S5023 may further include the following steps S50231 to S50233:

step S50231: judging whether the increase of the communication power of the target satellite can avoid the solar cell according to the intensity of the solar cell on different frequencies, the available communication power of the target satellite and the receivable power of the terminal; if yes, go to step S50232; if not, the process goes to step S50233.

Step S50232: the communication power of the target satellite is increased.

Step S50233: and adjusting the communication process of the target satellite according to the accurate solar space influence range.

In the present embodiment, when it is unavoidable to change the communication frequency of the target satellite, it is determined whether or not it is possible to avoid the solar cell.

In one embodiment, step S50233 may further include the following steps S502331 to S502335:

step S502331: judging whether the modification terminal can avoid the solar energy according to the accurate solar energy space influence range and the available communication link of the target satellite; if yes, go to step S502332; if not, the process goes to step S502333.

Step S502332: the terminal in communication with the target satellite is modified.

Step S502333: judging whether the communication path of the target satellite can be modified to avoid the solar cell; if yes, go to step S502334; if not, the process goes to step S502335.

Step S502334: the communication path of the target satellite is modified.

Step S502335: and adjusting the communication process of the target satellite according to the mobility of the terminal.

In the present embodiment, when it is impossible to avoid the solar cell by changing the communication power of the target satellite, it is determined whether changing the communication path of the target satellite can avoid the slush. The modification of the terminal communicating with the target satellite may be to modify the original terminal 1 to the terminal 2. Modifying the communication path of the target satellite refers to maintaining the original terminal unchanged, and changing the communication path between the target satellite and the terminal, for example, the original communication path is that the target satellite communicates with the terminal 1 directly, and the modified communication path is that the target satellite communicates with the terminal 1 through the satellite 1.

In one embodiment, step S502335 can further include the following steps S5023351 to S5023354:

step S5023351: judging whether the terminal can move according to the mobility of the terminal; if yes, go to step S5023352; if not, the process goes to step S5023353.

Step S5023352: and adjusting the position of the terminal.

Step S5023353: it is determined whether changing the orbit and attitude of the target satellite can avoid slush.

Step S5023354: the orbit and attitude of the target satellite are adjusted while the solar cell can be avoided by changing the orbit and attitude of the target satellite.

In the present embodiment, if it is impossible to avoid the solar cell by changing the communication path of the target satellite, it is considered whether or not the solar cell can be avoided by changing the position of the terminal and changing the orbit and posture of the target satellite.

In one embodiment, when the day is finished, the communication power, the terminal, the communication path, the position of the terminal, and the orbit and attitude of the target satellite may be restored to the original state before the communication process is adjusted.

In one embodiment, the available communication links, the available communication frequencies, and the available communication power of the target satellite may be acquired according to the following steps S601 to S602.

Step S601: and acquiring an available communication link of the target satellite according to the constellation communication network topology of the constellation of the target satellite and the hardware parameters of the target satellite.

Step S602: and acquiring the available communication frequency and the available communication power of the target satellite according to the available communication link and the hardware parameters of the target satellite.

In this embodiment, referring to fig. 11, fig. 11 is a schematic flow chart of main steps for acquiring an available communication frequency and an available communication power of a target satellite according to an embodiment of the present invention. As shown in fig. 11, the available communication link of the target satellite may be calculated according to the constellation communication network topology of the constellation in which the target satellite is located and the hardware parameters of the target satellite (including the satellite communication hardware type, the number of satellite communication hardware, the installation position of the satellite communication hardware, the state of the satellite communication hardware, etc.), and the available communication frequency and the available communication power of the target satellite may be calculated based on the available communication link and the hardware parameters of the target satellite (including the satellite communication hardware frequency range, the satellite communication hardware power range, the satellite communication hardware gain, etc.).

In one implementation manner, reference may be made to fig. 13, and fig. 13 is a schematic flow chart of main steps of a communication adjustment method according to an embodiment of the present invention. As shown in fig. 13, the communication adjustment method may predict the interference of the solar cell to obtain an interference prediction result, and then adjust the communication process of the target satellite based on the interference prediction result.

Calculating a rough solar energy space influence range based on the rough solar energy time influence range, the basic space coordinate of the sun, the equivalent radiation area of the sun and the basic space coordinate of the target satellite; judging whether a communication link between the terminal and a target satellite is in the rough-calculation day-up space influence range or not according to the rough-calculation day-up space influence range and the basic space coordinates of the terminal; if not, ending; if yes, judging whether a shielding object for shielding the solar energy exists according to the shielding range of the shielding object. If so, calculating the accurate solar time influence range and the accurate solar space influence range according to the space coordinates of the shielding object, the moving speed of the shielding object, the space coordinates of the sun, the moving speed of the target satellite, the space coordinates of the receiving end (terminal), the moving speed of the receiving end (terminal) and other parameters. If not, the accurate solar time influence range and the accurate solar space influence range are calculated according to the solar space coordinate, the solar movement speed, the target satellite space coordinate, the target satellite movement speed, the receiving end (terminal) space coordinate, the receiving end (terminal) movement speed and other parameters.

Judging whether the shielding object completely shields the solar energy according to the influence range of the refined solar energy space. And if the shielding is complete, ending. And if the shielding is not completed, judging whether the influence range of the refined solar time is larger than a time length threshold value. If the time duration threshold value is larger than the time duration threshold value, judging that the interference of the solar energy exists, forecasting the solar energy and further adjusting the communication process of the target satellite. If the time length is smaller than the time length threshold value, ending.

In the process of adjusting the communication process of the target satellite, the solar radiation frequency, the available communication frequency of the target satellite and the receivable frequency of the terminal are used for judging whether the communication frequency of the target satellite is changed or not, so that solar energy can be avoided. If so, the communication frequency of the target satellite is changed. If not, judging whether the increase of the communication power of the target satellite can avoid the solar energy according to the solar radiation intensity, the available communication power of the target satellite and the receivable power of the terminal. If so, the communication power of the target satellite is increased. If not, a determination is made as to whether modifying the terminal in communication with the target satellite is capable of avoiding slush based on the available communication links of the target satellite. If so, the terminal in communication with the target satellite is modified. If not, it is determined whether modifying the communication path of the target satellite can avoid the solar cell based on the available communication links of the target satellite. If so, the communication path of the target satellite is modified. If not, judging whether the position of the terminal can be adjusted to avoid the solar energy according to whether the terminal is movable. If so, the position of the terminal is adjusted. If not, then adjusting the orbit and attitude of the target satellite can avoid the slush. If so, the orbit and attitude of the target satellite are adjusted. If not, ending.

When the day is finished, the increased communication power, the modified terminal, the modified communication path, the adjusted position of the terminal, and the adjusted orbit and attitude of the target satellite may be restored to the original state.

It should be noted that, although the foregoing embodiments describe the steps in a specific order, it will be understood by those skilled in the art that, in order to achieve the effects of the present invention, the steps are not necessarily performed in such an order, and may be performed simultaneously (in parallel) or in other orders, and these variations are within the scope of the present invention.

It will be appreciated by those skilled in the art that the present invention may implement all or part of the above-described methods according to the above-described embodiments, or may be implemented by means of a computer program for instructing relevant hardware, where the computer program may be stored in a computer readable storage medium, and where the computer program may implement the steps of the above-described embodiments of the method when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable storage medium may include: any entity or device, medium, usb disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunications signals, software distribution media, and the like capable of carrying the computer program code. It should be noted that the computer readable storage medium may include content that is subject to appropriate increases and decreases as required by jurisdictions and by jurisdictions in which such computer readable storage medium does not include electrical carrier signals and telecommunications signals.

Further, the invention also provides a control device. In one control device embodiment according to the present invention, the control device includes a processor and a storage device, the storage device may be configured to store a program for executing the satellite communication interference prediction method of the above method embodiment, and the processor may be configured to execute the program in the storage device, including but not limited to the program for executing the satellite communication interference prediction method of the above method embodiment. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention. The control device may be a control device formed of various electronic devices.

The control device in the embodiment of the invention can be a control device formed by various electronic devices. In some possible embodiments, the control device may include a plurality of memory devices and a plurality of processors. The program for executing the satellite communication interference prediction method of the above method embodiment may be divided into a plurality of sub-programs, and each sub-program may be loaded and executed by the processor to execute the different steps of the satellite communication interference prediction method of the above method embodiment. Specifically, each of the subroutines may be respectively stored in different storage devices, and each of the processors may be configured to execute the programs in one or more storage devices to jointly implement the satellite communication interference prediction method of the above method embodiment, that is, each of the processors respectively executes different steps of the satellite communication interference prediction method of the above method embodiment to jointly implement the satellite communication interference prediction method of the above method embodiment.

The plurality of processors may be processors disposed on the same device, and for example, the control means may be a high-performance device composed of a plurality of processors, and the plurality of processors may be processors disposed on the high-performance device. In addition, the plurality of processors may be processors disposed on different devices, for example, the control apparatus may be a server cluster, and the plurality of processors may be processors on different servers in the server cluster.

Further, the invention also provides a computer readable storage medium. In one embodiment of a computer-readable storage medium according to the present invention, the computer-readable storage medium may be configured to store a program for performing the satellite communication interference prediction method of the above-described method embodiment, which may be loaded and executed by a processor to implement the satellite communication interference prediction method described above. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention. The computer readable storage medium may be a storage device including various electronic devices, and optionally, the computer readable storage medium in the embodiments of the present invention is a non-transitory computer readable storage medium.

Further, the invention also provides a control device. In one control device embodiment according to the present invention, the control device includes a processor and a storage device, the storage device may be configured to store a program for executing the communication adjustment method of the above-described method embodiment, and the processor may be configured to execute the program in the storage device, including, but not limited to, the program for executing the communication adjustment method of the above-described method embodiment. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention. The control device may be a control device formed of various electronic devices.

The control device in the embodiment of the invention can be a control device formed by various electronic devices. In some possible embodiments, the control device may include a plurality of memory devices and a plurality of processors. The program for executing the communication adjustment method of the above method embodiment may be divided into a plurality of sub-programs, and each sub-program may be loaded and executed by the processor to execute the different steps of the communication adjustment method of the above method embodiment. Specifically, each of the sub-programs may be stored in different storage devices, and each of the processors may be configured to execute the programs in one or more storage devices, so as to jointly implement the communication adjustment method of the above method embodiment, that is, each of the processors performs different steps of the communication adjustment method of the above method embodiment, so as to jointly implement the communication adjustment method of the above method embodiment.

Further, the invention also provides a computer readable storage medium. In one embodiment of a computer-readable storage medium according to the present invention, the computer-readable storage medium may be configured to store a program for performing the communication adjustment method of the above-described method embodiment, the program being loadable and executable by a processor to implement the above-described communication adjustment method. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention. The computer readable storage medium may be a storage device including various electronic devices, and optionally, the computer readable storage medium in the embodiments of the present invention is a non-transitory computer readable storage medium.

Further, it should be understood that, since the respective modules are merely set to illustrate the functional units of the apparatus of the present invention, the physical devices corresponding to the modules may be the processor itself, or a part of software in the processor, a part of hardware, or a part of a combination of software and hardware. Accordingly, the number of individual modules in the figures is merely illustrative.

Those skilled in the art will appreciate that the various modules in the apparatus may be adaptively split or combined. Such splitting or combining of specific modules does not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solution after splitting or combining falls within the protection scope of the present invention.

Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims

1. A method for predicting interference in satellite communications, the method comprising:

2. The method for predicting interference to satellite communication of claim 1,

the obtaining the interference prediction result based on the refined solar time influence range and the refined solar space influence range comprises the following steps:

3. The satellite communication interference prediction method according to claim 2, further comprising:

4. The method for predicting interference to satellite communication according to claim 3, wherein,

the method further includes obtaining the frequency of the solar impact and the intensity of the solar at different frequencies within the refined time of day impact according to the steps of:

5. The method for predicting interference to satellite communication of claim 1,

the step of selecting corresponding parameters based on the detection result to calculate, correcting the coarse calculation day time influence range into a fine calculation day time influence range, and correcting the coarse calculation day space influence range into a fine calculation day space influence range comprises the following steps:

6. The method of claim 5, wherein the spatial parameters include basic spatial coordinates and/or movement direction and/or movement speed within the coarse slush time influence range.

7. The satellite communication interference prediction method according to claim 6, further comprising obtaining basic spatial coordinates, movement direction and movement speed of the target satellite within the coarse-calculated time of day influence range according to the steps of:

8. The method for predicting interference to satellite communication of claim 1,

the obtaining the rough solar-to-target satellite space influence range within the rough solar-to-target satellite time influence range comprises the following steps:

9. The satellite communication interference prediction method according to claim 8, further comprising obtaining the equivalent radiation area according to the steps of:

10. A method of communication adjustment, the method comprising:

the satellite communication interference prediction method according to any one of claims 1 to 9, obtaining an interference prediction result of the target satellite;

11. The communication adjusting method according to claim 10, wherein,

the adjusting the communication process of the target satellite according to the refined solar time influence range, the refined solar space influence range, the solar frequency influence range and the intensity of solar on different frequencies in the interference prediction result comprises the following steps:

if yes, changing the communication frequency of the target satellite;

12. The communication adjusting method according to claim 11, wherein,

the adjusting the communication process of the target satellite according to the intensity of the solar energy on different frequencies, the refined solar energy time influence range and the refined solar energy space influence range comprises the following steps:

if yes, increasing the communication power of the target satellite;

13. The communication adjusting method according to claim 12, wherein,

the adjusting the communication process of the target satellite according to the refined solar time influence range and the refined solar space influence range comprises the following steps:

if yes, modifying a terminal in communication with the target satellite;

if yes, modifying the communication path of the target satellite;

14. The communication adjusting method according to claim 13, wherein,

the adjusting the communication process of the target satellite according to the mobility of the terminal end comprises the following steps:

if yes, the position of the terminal is adjusted;

15. The communication adjustment method according to any one of claims 12 to 14, characterized in that the method further comprises:

16. The communication adjustment method according to any one of claims 12 to 14, characterized in that the method further comprises acquiring an available communication link, an available communication frequency and an available communication power of the target satellite according to the steps of:

17. The communication adjusting method according to claim 10, wherein,

the method further comprises the steps of:

18. A control device comprising at least one processor and at least one memory device, the memory device being adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and executed by the processor to perform the satellite communication interference prediction method of any one of claims 1 to 9 or the communication adjustment method of any one of claims 10 to 17.

19. A computer readable storage medium having stored therein a plurality of program codes, characterized in that the program codes are adapted to be loaded and executed by a processor to perform the satellite communication interference prediction method of any one of claims 1 to 9 or the communication adjustment method of any one of claims 10 to 17.