CN105954708A - Single-antenna optimization amplitude-comparison fluorescence frequency spectrum radio direction finding system and method - Google Patents
Single-antenna optimization amplitude-comparison fluorescence frequency spectrum radio direction finding system and method Download PDFInfo
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- CN105954708A CN105954708A CN201610461562.5A CN201610461562A CN105954708A CN 105954708 A CN105954708 A CN 105954708A CN 201610461562 A CN201610461562 A CN 201610461562A CN 105954708 A CN105954708 A CN 105954708A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
- G01S3/20—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic derived by sampling signal received by an antenna system having periodically-varied orientation of directivity characteristic
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Abstract
The invention discloses a single-antenna optimization amplitude-comparison fluorescence frequency spectrum radio direction finding system and method, and relates to the technical field of radio direction finding. An optimization method is introduced to the field of the radio direction finding, the single-antenna optimization amplitude-comparison fluorescence frequency spectrum radio direction finding system and method are provided, radio signals are received by use of one fixed unidirectional directional antenna with known direction features, the received radio signals are processed, and the direction finding is performed through the optimization method. The amplitude direction finding system and method provided by the invention are high in sensitivity and high in accuracy, have not high requirements for consistency of parts, can rapidly perform the direction finding and solve the problem of incapability of simultaneous consideration of direction finding sensitivity, accuracy and a direction finding speed. The invention also simultaneously provides a direction finding system which can satisfy optimization calculation of needed data. The optimization calculation is performed on a measurement result, real-time direction finding can be quite rapidly performed, and later direction finding can also be performed by use of stored data.
Description
Technical field
The present invention relates to direction-finding station technical field, more specifically to a kind of single antenna optimization than width fluorescence spectrum radio direction-finding system and method.
Background technology
On the one hand, the development of society promotes radio cause to develop rapidly, and direction-finding station technology, as radio monitoring, technology investigation and an important technological means of electronic countermeasure, has obtained industry and more and more paid close attention to.According to the difference of direction finding principle, direction finding system can be divided into amplitude method, phase method, Doppler method, time difference method and Estimation of Spatial Spectrum method etc..
Amplitude method direction-finding system is widely used in direction-finding station field due to its simple in construction, steady performance.Amplitude method presses the difference of amplitude information Land use systems, can be subdivided into maximum-signal method (the biggest point of articulation method), minimum signal method (the least point of articulation method) and amplitude relative method；By the difference of reception number of channels, single channel and multichannel two kinds can be subdivided into；By the difference of reception antenna quantity, single antenna and multiple antennas two kinds can be subdivided into.Multichannel amplitude method direction-finding system, each beam antenna of system requirements and its receiving path are suffered to the amplitude characteristic of strict conformance；And amplitude method direction-finding system of based on single receiving channel reduces the inconsistent impact on system Measure direction performance of each channel amplitude characteristic, its direction finding precision can be increased substantially, but ageing not as multichannel amplitude method direction-finding system.
Current existing amplitude method direction finding technology is respectively provided with following defect:
Although 1, maximum signal direction finding direction finder sensitivity is high, but bearing accuracy is the highest, and direction finding speed is slow.Because on the one hand, the directional diagram of beam antenna is mild in the change of maximum gain approximate angle, insensitive to angle change；On the other hand, need substantial amounts of antenna azimuth-signal strength data pair, just can draw the antenna azimuth at peak signal place.
Although 2, minimum signal method bearing accuracy is higher, but direction finder sensitivity is the highest, and direction finding speed is slow.Because on the one hand, the directional diagram of beam antenna is precipitous in the change of least gain approximate angle, but antenna gain is low herein；On the other hand, need substantial amounts of antenna azimuth-signal strength data pair, just can draw the antenna azimuth at peak signal place.
3, existing amplitude relative method, the comparison of amplitude is by circuit realiration, and high to the coherence request of parts, debugging difficulty is big, and can only carry out real-time direction finding.
Second aspect, fast development along with radiotechnics, the new techniques such as high-speed frequency-hopping, spread spectrum, time division multiplex, complex modulation are increasingly widely applied, the various Low probability intercept signal such as short pulse signal, Sweeping nonlinearity is increasing, utilize conventional art means to carry out radio signal monitoring and face many difficulties, it is difficult to the homogenous frequency signal of transient signal and different instantaneous transmission probability is carried out direction finding.And digital phosphor spectrum technology rationally solves fast Fourier transform (FFT) the spectral velocities instantaneous spectrum amplitude distribution frequency analysis Display Technique of eye-observation finite rate soon, substantial amounts of spectrogram can be accumulated in instantaneous time, accumulative effect bitmap color shows, the warm colours such as the color rule of correspondence is the most red, orange, yellow show to occur the frequency (i.e. probability of occurrence) higher, black, blueness, the cool colour such as light blue show to occur the frequency relatively low, it is also possible to use other amplitude levels scheme.Thus the form of quick, the concealed signal change procedure instantaneous spectrum amplitude distribution frequency can be shown, it is possible to detect various transient signal, homogenous frequency signal, meet the radio monitoring job demand under complex electromagnetic environment.9020/9030 type spectrum analyzer configuration RTSA option that the portable real-time spectrum analyzer of H500/H600 type and RSA6100A series real-time spectrum analyzer, Rohde & Schwarz Representative Office of Germany that typical product has Imtech of the U.S. to produce produce ESMD type monitoring receiver, Shi De scientific & technical corporation of the U.S. produces etc..Digital phosphor frequency spectrum data is utilized to carry out direction finding, it becomes possible to a direction finding difficult problem for the homogenous frequency signal of solution transient signal and different instantaneous transmission probability, but traditional direction-finding method the most inapplicable digital phosphor frequency spectrum.This has been made useful exploration by Chengdu Dianzhen Technology Co., Ltd., within 2011, is used in its DZM-80 type portable monitoring direction-finding system by digital phosphor spectrum technology, shocks the U.S., causes the H600 type Real-time Spectrum Analyzer of Imtech of the U.S. to Chinese embargo.In essence, what Chengdu Dianzhen Technology Co., Ltd. used at that time remains maximum-signal method, apply for " utilizing the wireless direction finding method of instantaneous spectrum amplitude distribution frequency data " patent of invention of Application No. 201110209773.7, due to state at principal right item novelty is inadequate, the most patented power.
The third aspect, optimization method is also referred to as operational research Methods, it is that recent decades is formed, it mainly uses Optimized Approaches and the scheme of the various system of mathematical method research, purpose is for the system studied, try to achieve the preferred plan of reasonable utilization each subsystem ability, play and improve usefulness and the benefit of system, be finally reached the optimal objective of system.In industry, agricultural, transportation, business, national defence, building, communication, in the real work in each field of all departments such as government bodies, people are frequently encountered the extreme value found a function or max min problem, this class problem is exactly optimization problem, and the mathematical method solving optimization problem is referred to as optimization method, it mainly solves optimal production planning, optimum allocation, optimal design, optimal decision, Optimal Management etc. find a function maximum, minimum problems, including linear programming, integer programming, Non-Linear Programming, dynamic programming and intelligent optimization method etc..But the most not yet for direction-finding station field.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, optimization method is introduced direction-finding station field by the present invention, provide a kind of single antenna optimization than width fluorescence spectrum radio direction-finding system and method, the present invention uses the beam antenna of one pair of known direction feature to receive radio signal, and the radio signal received is processed, carry out direction finding by optimization method.It is an object of the invention to: solve the problem that in prior art, direction finder sensitivity, degree of accuracy and direction finding speed can not be taken into account, propose one and have high sensitivity, pinpoint accuracy concurrently, the highest to the coherence request of parts, it is possible to the amplitude direction-finding system of quickly direction finding and method；Additionally provide a kind of direction-finding system that disclosure satisfy that optimization computation desired data simultaneously, measurement result can be carried out optimization computation, be quickly carried out direction finding.
In order to solve above-mentioned problems of the prior art, the present invention is achieved through the following technical solutions:
Single antenna optimization is than width fluorescence spectrum radio direction-finding system, it is characterised in that: include
One pair for manually or automatically rotate, known direction feature and order to beam antenna；
For receiving the radio signal that beam antenna receives, and the monitoring that the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data receives equipment；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out the microprocessor of direction-finding station；
For being connected with microprocessor, and rotate with equidirectional same angular velocity with beam antenna under control of the microprocessor, measure azimuthal electronic compass pointed by beam antenna；
Described beam antenna and monitoring reception equipment communication connection, described monitoring reception equipment is connected with microprocessor two-way communication, described electronic compass is connected with microprocessor two-way communication, and described electronic compass is fixing with beam antenna to be connected, and rotates with same angular velocity with beam antenna.
Described beam antenna includes log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna or complex loop antenna.
Described monitoring reception equipment includes fluorescence spectrum radio receiver or fluorescence spectrum instrument.
Single antenna optimization is than width fluorescence spectrum wireless direction finding method, it is characterised in that:
By one pair of known direction feature and order to beam antenna, receive radio signal；
The azimuth that beam antenna points to is measured by electronic compass；
Receive, by monitoring reception equipment, the radio signal that beam antenna receives, and the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data；
Received the azimuth of the beam antenna sensing of electronic compass measurement by microprocessor and monitor the fluorescence spectrum data receiving device measuring, it is thus achieved that the measured signal intensity of characteristic frequency and specific instant probability in different orientations；
In the microprocessor, employing optimization method is modeled, with aspect angle as decision variable, in different orientations characteristic frequency measured signal intensity and between the signal intensity calculated according to the antenna performance of beam antenna the cumulant of deviation as object function, set up without constraint Nonlinear programming Model；
Carry out optimization computation by microprocessor, solve the signal arrival bearing of specific instant probability in characteristic frequency so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing.
Azimuthal quantity N that described beam antenna measures meets N >=CEIL(360 ÷ S), and N >=3, the angle of any 2 adjacent orientation is not more than S, and wherein S represents the main beam width of beam antenna.
Described is LEAST SQUARES MODELS FITTING or minimum distance method model without constraint Nonlinear programming Model.
Described minimum distance method model includes minimum manhatton distance model, minimum euclidean distance model or minimum Chebyshev's distance model.
The rotation mode of described beam antenna is manual rotary or automatic rotary.
For the signal launched continuously or emission probability is high, receive radio signal with automatic metering system on the microprocessor.
For the signal that emission probability is low, in the way of manual confirmation measurement, receive radio signal, to guarantee to receive valid data on the microprocessor.
Compared with prior art, the useful technique effect that the present invention is brought shows:
1, direction-finding system disclosed by the invention, having maximum-signal method, minimum signal method and the advantage of existing amplitude relative method concurrently, take full advantage of all directional characteristics of beam antenna, direction finder sensitivity is high, bearing accuracy is the highest, and the highest to the coherence request of parts；Data supporting is provided for optimization computation, can not only direction finding in real time, it is also possible to utilize the data direction finding afterwards stored.
2, present invention also offers a kind of optimization than width fluorescence spectrum wireless direction finding method, direction-finding method disclosed by the invention can reach real-time direction finding, the direction-finding method of the present invention has maximum-signal method, minimum signal method and the advantage of existing amplitude relative method concurrently, take full advantage of all directional characteristics of beam antenna, direction finder sensitivity is high, bearing accuracy is the highest, and the highest to the coherence request of parts；Data supporting is provided for optimization computation, can not only direction finding in real time, it is also possible to utilize the data direction finding afterwards stored.
3, the direction-finding method of the present invention, with aspect angle as decision variable, in different orientations characteristic frequency and specific instant probability measured signal intensity and between the signal intensity calculated according to the antenna performance of beam antenna the cumulant of deviation as object function, set up without constraint Nonlinear programming Model；And carry out optimization computation by microprocessor, solve the signal arrival bearing in characteristic frequency, the aspect angle making deviation cumulant minimum is i.e. signal arrival bearing, achieving the real-time direction finding of radio signal, compared with prior art the effect of the inventive method shows: direction finding speed is faster than traditional maximum-signal method and minimum signal method.Because signaling for long, when using the mode of continuous rotary antenna, beam antenna need not rotate full 360 °, can be with the minimum angles in both default beam antenna main beam width and 120 °, it becomes possible to accurately direction finding；For the signal that emission probability is low, when receiving radio signal in the way of manual confirmation measurement, have only to azimuthal quantity N that beam antenna measures and meet N >=CEIL(360 ÷ S), and N >=3, the angle of any 2 adjacent orientation is not more than S, wherein S represents the main beam width of beam antenna, it becomes possible to accurately direction finding.
Accompanying drawing explanation
Fig. 1 is present system structural representation.
Detailed description of the invention
Embodiment 1
As a preferred embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum radio direction-finding system, including:
One pair for manually or automatically rotate, known direction feature and order to beam antenna；
For receiving the radio signal that beam antenna receives, and the monitoring that the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data receives equipment；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out the microprocessor of direction-finding station；
For being connected with microprocessor, and rotate with equidirectional same angular velocity with beam antenna under control of the microprocessor, measure azimuthal electronic compass pointed by beam antenna；
Described beam antenna and monitoring reception equipment communication connection, described monitoring reception equipment is connected with microprocessor two-way communication, described electronic compass is connected with microprocessor two-way communication, and described electronic compass is fixing with beam antenna to be connected, and rotates with same angular velocity with beam antenna.
Embodiment 2
As another embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum radio direction-finding system, including:
One pair for manually or automatically rotate, known direction feature and order to beam antenna；
For receiving the radio signal that beam antenna receives, and the monitoring that the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data receives equipment；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out the microprocessor of direction-finding station；
For being connected with microprocessor, and rotate with equidirectional same angular velocity with beam antenna under control of the microprocessor, measure azimuthal electronic compass pointed by beam antenna；
Described beam antenna and monitoring reception equipment communication connection, described monitoring reception equipment is connected with microprocessor two-way communication, described electronic compass is connected with microprocessor two-way communication, and described electronic compass is fixing with beam antenna to be connected, and rotates with same angular velocity with beam antenna；
In the present embodiment, beam antenna can be log-periodic antenna, it is also possible to be yagi aerial, it is also possible to be electromagnetic horn, it is also possible to be double-ridged horn antenna, it is also possible to be complex loop antenna.
Embodiment 3
As another embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum radio direction-finding system, including:
One pair for manually or automatically rotate, known direction feature and order to beam antenna；
For receiving the radio signal that beam antenna receives, and the monitoring that the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data receives equipment；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out the microprocessor of direction-finding station；
For being connected with microprocessor, and rotate with equidirectional same angular velocity with beam antenna under control of the microprocessor, measure azimuthal electronic compass pointed by beam antenna；
Described beam antenna and monitoring reception equipment communication connection, described monitoring reception equipment is connected with microprocessor two-way communication, described electronic compass is connected with microprocessor two-way communication, and described electronic compass is fixing with beam antenna to be connected, and rotates with same angular velocity with beam antenna；
In the present embodiment, beam antenna can be log-periodic antenna, it is also possible to be yagi aerial, it is also possible to be electromagnetic horn, it is also possible to be double-ridged horn antenna, it is also possible to be complex loop antenna；
Monitoring reception equipment can be fluorescence spectrum radio receiver in the present embodiment, it is also possible to is fluorescence spectrum instrument.
Embodiment 4
As another embodiment of the present invention, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum wireless direction finding method, by one pair of known direction feature and order to beam antenna, receive radio signal；The azimuth that beam antenna points to is measured by electronic compass；Receive, by monitoring reception equipment, the radio signal that beam antenna receives, and the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data；Receive, by microprocessor, azimuth that the beam antenna that electronic compass measures points to and monitoring receives the fluorescence spectrum data of device measuring, it is thus achieved that the measured signal intensity on characteristic frequency and specific instant probability in different orientations；Optimization modeling is carried out by microprocessor, with aspect angle as decision variable, between the signal intensity that measured signal intensity on characteristic frequency and specific instant probability and the antenna performance according to beam antenna calculate in different orientations, the cumulant of deviation is as object function, sets up without constraint Nonlinear programming Model；Carry out optimization computation by microprocessor, solve the signal arrival bearing of specific instant probability in characteristic frequency so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing.
Embodiment 5
As another embodiment of the present invention, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum wireless direction finding method, by one pair of known direction feature and order to beam antenna, receive radio signal；The azimuth that beam antenna points to is measured by electronic compass；Receive, by monitoring reception equipment, the radio signal that beam antenna receives, and the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data；Receive, by microprocessor, azimuth that the beam antenna that electronic compass measures points to and monitoring receives the fluorescence spectrum data of device measuring, it is thus achieved that the measured signal intensity on characteristic frequency and specific instant probability in different orientations；Optimization modeling is carried out by microprocessor, with aspect angle as decision variable, between the signal intensity that measured signal intensity on characteristic frequency and specific instant probability and the antenna performance according to beam antenna calculate in different orientations, the cumulant of deviation is as object function, sets up without constraint Nonlinear programming Model；Carry out optimization computation by microprocessor, solve the signal arrival bearing of specific instant probability in characteristic frequency so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing；
In the present embodiment, the angle that beam antenna rotates need not meet 360, it is only necessary to meets a bigger amplitude range in 360-S or 240, it is possible to meet direction-finding station；In the present embodiment, beam antenna is rotated into azimuthal quantity of row measurement in set point to be needed to meet N >=CEIL(360 ÷ S), and N >=3, and the angle of any 2 adjacent orientation is not more than S, wherein S represents the main beam width of beam antenna.
Embodiment 6
As another embodiment of the present invention, present embodiment discloses:
Single antenna optimization than width fluorescence spectrum wireless direction finding method, by one pair of known direction feature and order to beam antenna, receive radio signal；The azimuth that beam antenna points to is measured by electronic compass；Receive, by monitoring reception equipment, the radio signal that beam antenna receives, and the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data；Receive, by microprocessor, azimuth that the beam antenna that electronic compass measures points to and monitoring receives the fluorescence spectrum data of device measuring, it is thus achieved that the measured signal intensity on characteristic frequency and specific instant probability in different orientations；Optimization modeling is carried out by microprocessor, with aspect angle as decision variable, between the signal intensity that measured signal intensity on characteristic frequency and specific instant probability and the antenna performance according to beam antenna calculate in different orientations, the cumulant of deviation is as object function, sets up without constraint Nonlinear programming Model；Carry out optimization computation by microprocessor, solve the signal arrival bearing of specific instant probability in characteristic frequency so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing；
In the present embodiment, the angle that beam antenna rotates need not meet 360, it is only necessary to meets a bigger amplitude range in 360-S or 240, it is possible to meet direction-finding station；In the present embodiment, beam antenna is rotated into azimuthal quantity of row measurement in set point to be needed to meet N >=CEIL(360 ÷ S), and N >=3, and the angle of any 2 adjacent orientation is not more than S, wherein S represents the main beam width of beam antenna；
In the present embodiment, the nothing constraint Nonlinear programming Model of foundation, can be the LEAST SQUARES MODELS FITTING set up by method of least square, it is also possible to be the minimum distance method model set up by minimum distance method；When setting up model by minimum distance method, it is also possible to set up minimum manhatton distance model, it is also possible to set up minimum euclidean distance model, it is also possible to set up minimum Chebyshev's distance model.
Embodiment 7
As another embodiment of the present invention, present embodiment discloses single antenna optimization than width fluorescence spectrum wireless direction finding method, the present embodiment is further supplementing of making in embodiment 5 or 6, in the present embodiment, the rotation mode of beam antenna can be that manual type rotates, can also be that self-action rotates, it can be electronic rotation that self-action rotates；And metering system is according to the difference of radio signal, different metering systems can be used, for the signal launched continuously or emission probability is high, receive radio signal with automatic metering system on the microprocessor；For the signal that emission probability is low, in the way of manual confirmation measurement, receive radio signal, to guarantee to receive valid data on the microprocessor.
Claims (10)
1. single antenna optimization is than width fluorescence spectrum radio direction-finding system, it is characterised in that: include
One pair for manually or automatically rotate, known direction feature and order to beam antenna；
For receiving the radio signal that beam antenna receives, and the monitoring that the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data receives equipment；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out the microprocessor of direction-finding station；
For being connected with microprocessor, and rotate with equidirectional same angular velocity with beam antenna under control of the microprocessor, measure azimuthal electronic compass pointed by beam antenna；
Described beam antenna and monitoring reception equipment communication connection, described monitoring reception equipment is connected with microprocessor two-way communication, described electronic compass is connected with microprocessor two-way communication, and described electronic compass is fixing with beam antenna to be connected, and rotates with same angular velocity with beam antenna.
2. single antenna optimization as claimed in claim 1 is than width fluorescence spectrum radio direction-finding system, it is characterised in that: described beam antenna includes log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna or complex loop antenna.
3. single antenna optimization as claimed in claim 1 is than width fluorescence spectrum radio direction-finding system, it is characterised in that: described monitoring reception equipment includes fluorescence spectrum radio receiver or fluorescence spectrum instrument.
4. single antenna optimization is than width fluorescence spectrum wireless direction finding method, it is characterised in that:
By one pair of known direction feature and order to beam antenna, receive radio signal；
The azimuth that beam antenna points to is measured by electronic compass；
Receive, by monitoring reception equipment, the radio signal that beam antenna receives, and the amplitude-frequency characteristic of the radio signal received is processed as fluorescence spectrum data；
Received the azimuth of the beam antenna sensing of electronic compass measurement by microprocessor and monitor the fluorescence spectrum data receiving device measuring, it is thus achieved that the measured signal intensity of characteristic frequency and specific instant probability in different orientations；
In the microprocessor, employing optimization method is modeled, with aspect angle as decision variable, in different orientations characteristic frequency measured signal intensity and between the signal intensity calculated according to the antenna performance of beam antenna the cumulant of deviation as object function, set up without constraint Nonlinear programming Model；
Carry out optimization computation by microprocessor, solve the signal arrival bearing of specific instant probability in characteristic frequency so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing.
5. single antenna optimization as claimed in claim 4 is than width fluorescence spectrum wireless direction finding method, it is characterized in that: azimuthal quantity N that described beam antenna measures meets N >=CEIL(360 ÷ S), and N >=3, the angle of any 2 adjacent orientation is not more than S, and wherein S represents the main beam width of beam antenna.
6. single antenna optimization as claimed in claim 4 is than width fluorescence spectrum wireless direction finding method, it is characterised in that: described is LEAST SQUARES MODELS FITTING or minimum distance method model without constraint Nonlinear programming Model.
7. single antenna optimization as claimed in claim 6 is than width fluorescence spectrum wireless direction finding method, it is characterised in that: described minimum distance method model includes minimum manhatton distance model, minimum euclidean distance model or minimum Chebyshev's distance model.
8. the single antenna optimization as described in claim 4 or 5 is than width fluorescence spectrum wireless direction finding method, it is characterised in that: the rotation mode of described beam antenna is manual rotary or automatic rotary.
9. single antenna optimization as claimed in claim 4 is than width fluorescence spectrum wireless direction finding method, it is characterised in that: for the signal launched continuously or emission probability is high, receive radio signal with automatic metering system on the microprocessor.
10. single antenna optimization as claimed in claim 4 is than width fluorescence spectrum wireless direction finding method, it is characterized in that: for the signal that emission probability is low, radio signal is received, to guarantee to receive valid data on the microprocessor in the way of manual confirmation measurement.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107957571A (en) * | 2017-10-09 | 2018-04-24 | 中国南方电网有限责任公司调峰调频发电公司 | Hydrophone direction-finding method, device, computer-readable recording medium and computer equipment |
| CN108847855A (en) * | 2018-06-26 | 2018-11-20 | 成都九洲迪飞科技有限责任公司 | Miniature spectral sensor |
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| CN102445679A (en) * | 2011-09-22 | 2012-05-09 | 成都中安频谱科技有限公司 | Direction finding method for three-channel spatial spectrum estimation direction finding system |
| WO2015124368A1 (en) * | 2014-02-20 | 2015-08-27 | Epcos Ag | Tunable duplexer having a circulator |
| CN204203457U (en) * | 2014-11-28 | 2015-03-11 | 宁晓卫 | Based on the shortwave radio monitor system of spatial spectral estimation algorithm |
| CN206348452U (en) * | 2016-06-23 | 2017-07-21 | 成都点阵科技有限公司 | Single antenna is optimized than width fluorescence spectrum radio direction-finding system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107957571A (en) * | 2017-10-09 | 2018-04-24 | 中国南方电网有限责任公司调峰调频发电公司 | Hydrophone direction-finding method, device, computer-readable recording medium and computer equipment |
| CN108847855A (en) * | 2018-06-26 | 2018-11-20 | 成都九洲迪飞科技有限责任公司 | Miniature spectral sensor |
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