CN207817077U - A kind of measuring system of short-wave antenna directional diagram and gain - Google Patents
A kind of measuring system of short-wave antenna directional diagram and gain Download PDFInfo
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- CN207817077U CN207817077U CN201820217737.2U CN201820217737U CN207817077U CN 207817077 U CN207817077 U CN 207817077U CN 201820217737 U CN201820217737 U CN 201820217737U CN 207817077 U CN207817077 U CN 207817077U
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Abstract
The utility model proposes a kind of measuring systems of short-wave antenna directional diagram and gain, it is intended to and the measurement accuracy of short-wave antenna directional diagram is improved, realizes the measurement to short-wave antenna gain, and real-time rendering short-wave antenna directional diagram, including：Ground test subsystem carries out real-time control to test process, and calculates the yield value of short-wave antenna to be measured according to the data received, while real-time rendering directional diagram and display yield value；Test lift-off platform subsystem, measures level value data in short-wave antenna working frequency points to be measured；Standard antenna subtest subsystem is used for and tests lift-off platform subsystem and demarcated together to level value in short-wave antenna working frequency points to be measured；Differential navigation reference station subsystem, the second Navigation of Pilotless Aircraft error and position error of the first unmanned plane and standard antenna subtest subsystem to test lift-off platform subsystem are measured.
Description
Technical field
The utility model belongs to antenna measurement technical field, is related to a kind of measurement system of short-wave antenna directional diagram and gain
System can be used for obtaining gain and the directional diagram of short-wave antenna.
Background technology
Short wave communication still plays a significant role in the various countries communications field at present, and short-wave antenna is the core in short wave communication
Equipment, the performance of antenna will directly influence actual communication efficiency.In order to accurately measure directional diagram and the gain of antenna, to normal
The measurement for advising antenna is carried out in microwave dark room, and still, since short-wave antenna is bulky, Antenna Far Field distance is extremely remote,
The not enough spaces of microwave dark room measure.Currently, people are mainly measured by theoretical calculation or electromagnetic field scale model
Method obtains directional diagram and the gain of short-wave antenna, but short-wave antenna is by antenna height, geographical environment, earth's surface characteristic and feed
The factors such as form influence, result that theoretical calculation or electromagnetic field scaling measurement method obtain and actual direction figure and gain difference compared with
Greatly.To obtain accurate directional diagram and gain, needs to carry out field survey to short-wave antenna, obtain its directional diagram and gain.
Currently without the field survey method that can obtain short-wave antenna gain, and in the measurement of short-wave antenna directional diagram
Aspect, existing measurement method is too simple, and measurement accuracy is inadequate.Such as application publication number is CN107179449A, it is entitled
The patent application of " a kind of short-wave receiving antenna 3 D stereo directional diagram aerial mobile measuring system and method " discloses a kind of short
Wave reception antenna 3 D stereo directional diagram aerial mobile measuring system and method, system include loop antenna, mini power transmitting end
End, RF signal collection module and unmanned platform, the invention are used omnidirectional's loop antenna radiant power signal, are surveyed using acquisition module
Measure and store radiofrequency signal, then radiofrequency signal is pre-processed, then by Estimation of Spatial Spectrum technology to signal into advance one
Step processing, is finally tested on unmanned platform.Although the invention provides a kind of measurement short-wave receiving antenna 3 D stereo
The method of directional diagram, but have a defect that the pattern measurement precision caused by unmanned plane positioning accuracy deficiency is relatively low, and
Directional diagram can not be obtained in real time, be unable to measure short-wave antenna gain.
Utility model content
The purpose of the utility model is to overcome the problems of the above-mentioned prior art, it is proposed that a kind of short-wave antenna direction
The measuring system of figure and gain, it is intended to the measurement accuracy of short-wave antenna directional diagram is improved, realizes the measurement to short-wave antenna gain,
And real-time display directional diagram.
To achieve the above object, the technical solution that the utility model is taken is：
A kind of measuring system of short-wave antenna directional diagram and gain, including：Ground test subsystem, test lift-off platform
System, standard antenna subtest subsystem and differential navigation reference station subsystem, wherein：
The ground test subsystem, including main control unit, data processing unit, display and control unit and Fei Kong earth stations,
In：The main control unit sends instruction for the mini host to test lift-off platform subsystem, realizes the reality to measurement process
When control, and to test lift-off platform subsystem and standard antenna subtest subsystem mini host send instruction, realize
To the real-time control of calibration process, while the measurement number that the second mini host for receiving standard antenna subtest subsystem is beamed back
According to, and send measured data to data processing unit and display and control unit；The data processing unit, for recording main control unit
The data of transmission, and calculate the yield value of short-wave antenna to be measured；The display and control unit is used for real-time display yield value and master control list
The data that member is sent, and the data real-time rendering directional diagram sent according to main control unit；The Fei Kong earth stations, for test
The ship trajectory of first unmanned plane of lift-off platform subsystem and the second unmanned plane of standard antenna subtest subsystem carries out
Real-time control；
The test lift-off platform subsystem, including be equipped with and adaptively increase steady holder, the first mini host, short-wave signal
Source and the first unmanned plane for intersecting folded dipole antenna, wherein：The adaptive steady holder of increasing, for the first unmanned plane and peace
Pose adjustment is carried out mounted in the adaptive intersection folded dipole antenna increased on steady holder；The first mini host, for real
Now with the instruction interaction of main control unit；The short-wave signal source, for generating short-wave signal；The intersection folded dipole antenna,
For emitting short-wave signal；
The standard antenna subtest subsystem, including the second unmanned plane of standard dipole antenna is installed, wherein：
The standard dipole antenna, for receiving the signal for intersecting folded dipole antenna and launching；Second unmanned plane includes the
Two mini hosts and frequency spectrograph, the second mini host, for realizing the instruction of the main control unit with ground test subsystem
Interaction and data transmission；The frequency spectrograph be used for measures be mounted on the second unmanned plane on standard dipole antenna receive it is short
Wave signal；
The differential navigation reference station subsystem, for the first unmanned plane, the standard day to test lift-off platform subsystem
The navigation error and position error of second unmanned plane of line subtest subsystem are measured.
The measuring system of above-mentioned a kind of short-wave antenna directional diagram and gain, the real-time control to measurement process are
Refer to main control unit and send instruction to the first mini host, the first mini host according to the instruction received to the lift-off of unmanned plane,
Navigation and landing are controlled, and the first mini host is short according to the instruction control received during the navigation of the first unmanned plane
Wave signal source generates short-wave signal, and controls the intersection being mounted on the first unmanned plane and convert into a period of time antenna transmitting short-wave signal.
The measuring system of above-mentioned a kind of short-wave antenna directional diagram and gain, the real-time control to calibration process are
Refer to main control unit and send instruction to the first mini host and the second mini host, two mini hosts are according to the instruction pair received
Lift-off, navigation and the landing of unmanned plane are controlled, and the first mini host is during the navigation of the first unmanned plane according to reception
The instruction control short-wave signal source arrived generates short-wave signal, and controls the intersection being mounted on the first unmanned plane and convert into a period of time antenna
Emit short-wave signal；Second mini host during the navigation of the second unmanned plane according to receive instruction control second nobody
Frequency spectrograph on machine measures the signal level value that the standard dipole antenna being mounted on the second unmanned plane receives.
The utility model compared with prior art, has the following advantages that：
1. the utility model measures the navigation error and position error of unmanned plane using differential navigation reference station subsystem, carry
The high positioning accuracy of unmanned plane, avoid in existing method leads to pattern measurement precision because unmanned plane positioning accuracy is insufficient
Lower defect.
2. the utility model in the air demarcates short-wave antenna to be measured in height using subtest subsystem, largely
On avoid ground return and environmental disturbances and influenced caused by calibration, improve the precision of calibration level value；Ground test
The data processing unit of system is calculated according to calibration level value and measurement level value, has obtained the gain of short-wave antenna to be measured
Value.
3. data are beamed back ground test subsystem by the utility model in real time by mini host, the reality of directional diagram is realized
When draw.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model measuring system；
Fig. 2 is the implementation flow chart of the utility model measurement method.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the utility model is explained in further detail.
Referring to Fig.1, a kind of measuring system of short-wave antenna directional diagram and gain, including ground test subsystem, test rise
Hollow panel subsystem, standard antenna subtest subsystem and differential navigation reference station subsystem, wherein：
Ground test subsystem, including main control unit, data processing unit, display and control unit and Fei Kong earth stations, wherein：It is main
Unit is controlled, instruction is sent for the mini host to test lift-off platform subsystem, realizes the real-time control to measurement process, and
Instruction is sent to the mini host of test lift-off platform subsystem and standard antenna subtest subsystem, is realized to calibration process
Real-time control, while the measurement data that the second mini host for receiving standard antenna subtest subsystem is beamed back, and surveying
Amount data are sent to data processing unit and display and control unit.
The real-time control to measurement process refers to that main control unit sends instruction to the first mini host, and first is mini
Host controls the lift-off, navigation and landing of unmanned plane according to the instruction received, the first mini host first nobody
Short-wave signal is generated according to the instruction control short-wave signal source received during the navigation of machine, and control be mounted on first nobody
Intersection on machine converts into a period of time antenna and emits short-wave signal.
The real-time control to calibration process refers to that main control unit is sent to the first mini host and the second mini host
Instruction, two mini hosts control the lift-off, navigation and landing of unmanned plane according to the instruction received, the first mini master
Machine generates short-wave signal during the navigation of the first unmanned plane according to the instruction control short-wave signal source received, and controls peace
Intersection on the first unmanned plane converts into a period of time antenna and emits short-wave signal；Navigation of the second mini host in the second unmanned plane
It is even that the standard being mounted on the second unmanned plane is measured according to the frequency spectrograph on instruction the second unmanned plane of control received in the process
The signal level value that pole sub-antenna receives.
Data processing unit, the data for recording main control unit transmission, and calculate shortwave to be measured according to following formula
The gain data G of antennai：
In formula：GiFor short-wave antenna yield value to be measured, GsFor standard dipole antenna gain, PxIt is connect for short-wave antenna to be measured
The signal level Value Data receivedIn maximum value,The signal level value received for standard dipole antenna.
Display and control unit, for the data that real-time display yield value and main control unit are sent, and sent according to main control unit
Data real-time rendering directional diagram.
Fei Kong earth stations, for the first unmanned plane and standard antenna subtest subsystem to test lift-off platform subsystem
The ship trajectory of second unmanned plane of system carries out real-time control, is sent and is instructed to two mini host by main control unit, two
Mini host is navigated by water according to the corresponding unmanned plane of flight course control that Fei Kong earth stations set.
Measure lift-off platform subsystem, including be equipped with adaptively increase steady holder, the first mini host, short-wave signal source and
Intersect the first unmanned plane of folded dipole antenna, wherein：It is described it is adaptive increase steady holder, for the first unmanned plane and being mounted on
The adaptive intersection folded dipole antenna increased on steady holder carries out pose adjustment；By to the first unmanned plane and mounted on adaptive
The attitudes vibration that the intersection folded dipole antenna on steady holder should be increased carries out compensation of angle movement, realizes that intersecting folded dipole antenna exists
High-precision under dynamic environment is directed toward.
First mini host, for realizing the instruction interaction with main control unit；Using a configuration in the utility model
The ultra-thin computer of WIN7 systems controls short-wave signal as specific embodiment, the computer according to the instruction that main control unit is sent
Source generates short-wave signal, and controls and intersect folded dipole antenna transmitting short-wave signal.
Short-wave signal source, for generating short-wave signal；Use maximum power for 20W in the utility model, frequency 2-
The short-wave radio set of 30MHz generates short-wave signal as specific embodiment, and using the continuous wave mode of short-wave radio set.
Intersect folded dipole antenna, the short-wave signal for emitting the generation of short-wave signal source；Using same in the utility model
Shaft cable is connected folded dipole antenna is intersected with short-wave radio set.
Standard antenna subtest subsystem, including the second unmanned plane of standard dipole antenna is installed, wherein：It is described
Standard dipole antenna, for receiving the signal for intersecting folded dipole antenna and launching；Second unmanned plane includes the second fan
Your host and frequency spectrograph.
Second unmanned plane further includes the second mini host, for realizing the main control unit with ground survey subsystem
Instruction interaction and data transmission；Second mini host is received according to the instruction measurement standard dipole antenna that main control unit is sent
The signal level value arrived, and the signal level value is sent to main control unit；It is used and the first mini host in the utility model
Identical ultra-thin computer is as specific embodiment.
The frequency spectrograph is used to measure the short-wave signal that the standard dipole antenna on the second unmanned plane receives.
Differential navigation reference station subsystem, for the navigation error and position error to the first unmanned plane and the second unmanned plane
It is measured, the real time dynamic differential positioning method based on satellite navigation is used in the utility model, by satellite-signal
It is continuously tracked and obtains differential corrections data, to correct the navigation error and position error of the first unmanned plane and the second unmanned plane.
With reference to Fig. 2, a kind of measurement method of short-wave antenna directional diagram and gain includes the following steps：
Step 1) determination needs measurement direction figure and the frequency point f to be measured of gaini, i=1,2 ... N；I is frequency point serial number to be measured,
N is frequency point to be measured sum.
Step 2) is that standard antenna subtest subsystem selects antenna：
Select working frequency points for fiStandard dipole antenna, and by standard dipole antenna be mounted on the second unmanned plane
On；
Various criterion dipole antenna working frequency is different, selects standard identical with short-wave antenna working frequency points to be measured even
Pole sub-antenna can just obtain accurately demarcating level value.
Step 3) test lift-off platform subsystem and standard antenna subtest subsystem work frequently to short-wave antenna to be measured
Level point valueIt is demarcated：
Step 3a) instruction that is sent according to the main control unit of ground test subsystems of the first mini host, control the first nothing
Man-machine lift-off, while the instruction that the second mini host is sent according to the main control unit of ground test subsystems, control second nobody
Machine goes up to the air, and the airline operation that two frame unmanned planes are set according to the Fei Kong earth stations of ground test subsystems is led to sustained height
The relative position that differential navigation reference station subsystem corrects two frame unmanned planes is crossed, to ensure the distance between two frame unmanned planes and set
Fixed short-wave antenna to be measured is identical as the distance between the first unmanned plane；
Ground environment has serious electromagnetic interference to calibration process, and unmanned plane is risen to high-altitude can be to avoid ground environment
The influence that calibration process is brought；The distance between two frame unmanned planes affect final pattern measurement precision and gain measurement
Precision can improve the positioning accuracy of unmanned plane using differential navigation reference station subsystem, and then improve pattern measurement precision
With gain measurement precision.
Step 3b) instruction that is sent according to the main control unit of ground test subsystems of the first mini host controls short-wave signal
Source generates the short-wave signal of frequency point to be measured, and emits short-wave signal by intersecting folded dipole antenna, while on the second unmanned plane
The level value of short-wave signal that receives of frequency spectrograph measurement standard dipole antennaAnd by level valueIt is transferred to the second fan
Your host, the second mini host is by the level valueIt is sent to the main control unit of ground test subsystem, main control unit is by level
ValueIt is sent to data processing unit, data processing unit records level value
Step 3c) the first unmanned plane and the second unmanned plane return according to the instruction that the main control unit of ground test subsystems is sent
Go back to ground.
Step 4) repeats step 2) and step 3), until N number of frequency point has been demarcated.
Step 5) test lift-off platform subsystem is to short-wave antenna working frequency points level Value Data to be measuredIt measures：
Step 5a) the instruction control first that is sent according to the main control unit of ground test subsystems of the first mini host nobody
Machine goes up to the air, and the first unmanned plane is navigated by water according to the course line that the Fei Kong earth stations of ground test subsystem set, and differential navigation is used in combination to join
Examine station subsystem correction ship trajectory；
Unmanned plane is influenced during navigation by high altitude wind, it is easy to which standoff track needs to use difference
Navigational reference station subsystem corrects ship trajectory；
The ship trajectory refers in the fixed plane upper edges of θOne circle of direction flight, ranging from 0 ° to 90 ° of θ.
Step 5b) instruction that is sent according to the main control unit of ground test subsystems of the first mini host controls short-wave signal
It is f that source, which generates frequency,iShort-wave signal, and emit short-wave signal, while short-wave antenna to be measured by intersecting folded dipole antenna
Use the level Value Data for the short-wave signal that frequency spectrograph measurement receivesAnd by the level Value DataIt is transferred at data
Manage unit.
Step 5c) the level Value Data of short-wave signal that receives of data processing unit record frequency spectrograph measurementConcurrently
It send to the display and control unit of ground test subsystem, display and control unit real-time display level Value DataAnd draw directional diagram.
Step 5d) repeat step 5b) and step 5c), until N number of frequency point has measured.
Step 6) ground test subsystem obtains the yield value G of short-wave antenna to be measuredi：
Step 6a) ground test subsystem data processing unit utilize step 3b) record level valueWith step 5c)
The level Value Data of recordTake level Value DataMiddle maximum value calculates the gain G of short-wave antenna to be measuredi, and it is sent to ground
The display and control unit of face test subsystems.
Step 6b) display and control unit of ground test subsystem shows the yield value G of the short-wave antenna to be measured receivedi。
Step 6c) repeat step 6a) and 6b) until the yield value of all N number of frequency points of acquisition.
Claims (3)
1. a kind of measuring system of short-wave antenna directional diagram and gain, it is characterised in that：It is risen including ground test subsystem, test
Hollow panel subsystem, standard antenna subtest subsystem and differential navigation reference station subsystem, wherein：
The ground test subsystem, including main control unit, data processing unit, display and control unit and Fei Kong earth stations, wherein：Institute
Main control unit is stated, instruction is sent for the mini host to test lift-off platform subsystem, realizes the real-time control to measurement process
System, and instruction is sent to the mini host of test lift-off platform subsystem and standard antenna subtest subsystem, it realizes to mark
The measurement data that the second mini host determined the real-time control of process, while receiving standard antenna subtest subsystem is beamed back,
And send measured data to data processing unit and display and control unit；The data processing unit, for recording main control unit hair
The data sent, and calculate the yield value of short-wave antenna to be measured；The display and control unit is used for real-time display yield value and main control unit
The data of transmission, and the data real-time rendering directional diagram sent according to main control unit；The Fei Kong earth stations, for being risen to test
The ship trajectory of first unmanned plane of hollow panel subsystem and the second unmanned plane of standard antenna subtest subsystem carries out real
When control；
The test is gone up to the air platform subsystem, including be equipped with adaptively increase steady holder, the first mini host, short-wave signal source and
Intersect the first unmanned plane of folded dipole antenna, wherein：It is described it is adaptive increase steady holder, for the first unmanned plane and being mounted on
The adaptive intersection folded dipole antenna increased on steady holder carries out pose adjustment；The first mini host, for realizing with
The instruction interaction of main control unit；The short-wave signal source, for generating short-wave signal；The intersection folded dipole antenna, is used for
Emit short-wave signal；
The standard antenna subtest subsystem, including the second unmanned plane of standard dipole antenna is installed, wherein：It is described
Standard dipole antenna, for receiving the signal for intersecting folded dipole antenna and launching；Second unmanned plane includes the second fan
Your host and frequency spectrograph, the second mini host, for realizing the instruction interaction of the main control unit with ground test subsystem
And data transmission；The frequency spectrograph is used to measure the shortwave letter that the standard dipole antenna on the second unmanned plane receives
Number；
The differential navigation reference station subsystem, it is auxiliary for the first unmanned plane, the standard antenna to test lift-off platform subsystem
The navigation error and position error for helping the second unmanned plane of test subsystems are measured.
2. the measuring system of a kind of short-wave antenna directional diagram and gain according to claim 1, which is characterized in that described right
The real-time control of measurement process refers to main control unit sends instruction to the first mini host, and the first mini host is according to receiving
Instruction the lift-off, navigation and landing of unmanned plane are controlled, the first mini host is during the navigation of the first unmanned plane
Short-wave signal is generated according to the instruction control short-wave signal source received, and it is equivalent to control the intersection being mounted on the first unmanned plane
A period of time antenna emits short-wave signal.
3. the measuring system of a kind of short-wave antenna directional diagram and gain according to claim 1, which is characterized in that described right
The real-time control of calibration process refers to that main control unit sends instruction to the first mini host and the second mini host, two mini
Host controls the lift-off, navigation and landing of unmanned plane according to the instruction received, the first mini host first nobody
Short-wave signal is generated according to the instruction control short-wave signal source received during the navigation of machine, and control be mounted on first nobody
Intersection on machine converts into a period of time antenna and emits short-wave signal；Second mini host is during the navigation of the second unmanned plane according to connecing
The frequency spectrograph on instruction the second unmanned plane of control received measures the standard dipole antenna being mounted on the second unmanned plane and receives
The signal level value arrived.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820217737.2U CN207817077U (en) | 2018-02-07 | 2018-02-07 | A kind of measuring system of short-wave antenna directional diagram and gain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820217737.2U CN207817077U (en) | 2018-02-07 | 2018-02-07 | A kind of measuring system of short-wave antenna directional diagram and gain |
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| Publication Number | Publication Date |
|---|---|
| CN207817077U true CN207817077U (en) | 2018-09-04 |
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ID=63320973
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820217737.2U Withdrawn - After Issue CN207817077U (en) | 2018-02-07 | 2018-02-07 | A kind of measuring system of short-wave antenna directional diagram and gain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254630A (en) * | 2018-02-07 | 2018-07-06 | 西安星网天线技术有限公司 | A kind of short-wave antenna directional diagram and the measuring system and method for gain |
-
2018
- 2018-02-07 CN CN201820217737.2U patent/CN207817077U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254630A (en) * | 2018-02-07 | 2018-07-06 | 西安星网天线技术有限公司 | A kind of short-wave antenna directional diagram and the measuring system and method for gain |
| CN108254630B (en) * | 2018-02-07 | 2023-09-12 | 西安星网天线技术有限公司 | System and method for measuring directional diagram and gain of short wave antenna |
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