CN106054124A - Multi-antenna single-channel optimal amplitude-comparison fluorescent spectrum radio direction-finding system and method - Google Patents
Multi-antenna single-channel optimal amplitude-comparison fluorescent spectrum radio direction-finding system and method Download PDFInfo
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- CN106054124A CN106054124A CN201610461870.8A CN201610461870A CN106054124A CN 106054124 A CN106054124 A CN 106054124A CN 201610461870 A CN201610461870 A CN 201610461870A CN 106054124 A CN106054124 A CN 106054124A
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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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a multi-antenna single-channel optimal amplitude-comparison fluorescent spectrum radio direction-finding system and method, and relates to the technical field of radio direction-finding. According to the method and the system, radio signals are received by at least three pairs of directional antennas with known directional characteristics, the received radio signals are processed, and direction-finding is performed by an optimization method, so that radio direction-finding is realized first time using the fixed antennas of digital fluorescent spectra, and the problem of quick direction-finding of transient signals and co-frequency signals is solved; the problem that the direction-finding sensitivity, accuracy and speed cannot be compatible in the prior art is solved, and an amplitude direction-finding system and method with high sensitivity, high accuracy and low requirement for consistency of components and capable of realizing quick direction-finding are put forward; meanwhile, a direction-finding system capable of meeting data required by optimal calculation is also provided, and can optimally calculate the measurement result, quickly perform real-time direction finding and perform post direction finding using the stored data.
Description
Technical field
The present invention relates to direction-finding station technical field, more specifically to a kind of multiple antennas single pass optimization ratio
Width fluorescence spectrum radio direction-finding system and method.
Background technology
On the one hand, society development promote radio cause to develop rapidly, direction-finding station technology as radio monitoring,
Technology investigation and an important technological means of electronic countermeasure, obtained industry and more and more paid close attention to.According to direction finding principle
Difference, 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 due to its simple in construction, steady performance leads in direction-finding station
Territory.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；Press
The difference of reception antenna quantity, can be subdivided into single antenna and multiple antennas two kinds.For multichannel amplitude method direction-finding system, system is wanted
Each beam antenna and its receiving path is asked to suffer from the amplitude characteristic of strict conformance；And amplitude method of based on single receiving channel is surveyed
Reducing the inconsistent impact on system Measure direction performance of each channel amplitude characteristic to system, its direction finding precision is significantly carried
Height, 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 in a large number
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 a side
Face, 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, high to the coherence request of parts, debugging difficulty
Greatly, and real-time direction finding can only be carried out.
Second aspect, along with the fast development of radiotechnics, high-speed frequency-hopping, spread spectrum, time division multiplex, complex modulation etc. are new
Technology is increasingly widely applied, and the various Low probability intercept signal such as short pulse signal, Sweeping nonlinearity is increasing, utilizes
Conventional art means carry out radio signal monitoring and face many difficulties, it is difficult to transient signal and different instantaneous transmission probability
Homogenous frequency signal carries out direction finding.And digital phosphor spectrum technology rationally solves fast Fourier transform (FFT) spectral velocities people soon
Eye observes the instantaneous spectrum amplitude distribution frequency analysis Display Technique of finite rate, can accumulate substantial amounts of frequency spectrum in instantaneous time
Figure, accumulative effect bitmap color show, and the warm colour such as the color rule of correspondence is the most red, orange, yellow shows the generation frequency
(i.e. probability of occurrence) is higher, and black, blueness, the cool colour such as light blue show to occur the frequency relatively low, it is also possible to use other amplitude etc.
Level scheme.Thus the form of quick, the concealed signal change procedure instantaneous spectrum amplitude distribution frequency can be shown
Come, it is possible to detect various transient signal, homogenous frequency signal, meet the radio monitoring job demand under complex electromagnetic environment.Typical case
Product have the portable real-time spectrum analyzer of H500/H600 type and RSA6100A series frequency in real time that Imtech of the U.S. produces
Spectrometer, Rohde & Schwarz Representative Office of Germany produces ESMD type monitoring receiver, Shi De scientific & technical corporation of the U.S. produces 9020/
9030 type spectrum analyzer configuration RTSA options etc..Digital phosphor frequency spectrum data is utilized to carry out direction finding, it becomes possible to solve transient state
A direction finding difficult problem for the homogenous frequency signal of signal and different instantaneous transmission probability, but the most inapplicable digital phosphor of traditional direction-finding method
Frequency spectrum.This has been made useful exploration by Chengdu Dianzhen Technology Co., Ltd., digital phosphor spectrum technology is used for it in 2011
In DZM-80 type portable monitoring direction-finding system, shock the U.S., cause the H600 type Real-time Spectrum Analyzer centering of Imtech of the U.S.
The embargo of state.In essence, what Chengdu Dianzhen Technology Co., Ltd. used at that time remains maximum-signal method, has applied for
Number it is " utilizing the wireless direction finding method of instantaneous spectrum amplitude distribution frequency data " patent of invention of 201110209773.7, by
In 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, is that recent decades is formed, and it mainly uses mathematics side
The Optimized Approaches of the various system of method research and scheme, it is therefore intended that for the system studied, try to achieve an each son of reasonable utilization
The preferred plan of system capability, plays and improves usefulness and the benefit of system, be finally reached the optimal objective of system.Industry,
Agricultural, transportation, business, national defence, build, communicate, in the real work in each field of all departments such as government bodies, people are frequent
Can run into the extreme value found a function or max min problem, this class problem is exactly optimization problem, and solves optimization and ask
The mathematical method of topic is referred to as optimization method, and it mainly solves optimal production planning, optimum allocation, optimal design, optimum certainly
Plan, Optimal Management etc. find a function maximum, minimum problems, including linear programming, integer programming, Non-Linear Programming, dynamically advise
Draw 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, it is provided that
A kind of multiple antennas single pass optimization is than width fluorescence spectrum radio direction-finding system and method, and the present invention uses at least Third Mate
The beam antenna of known direction feature receives radio signal, and processes the radio signal received, by optimum
Change method carries out direction finding.It is an object of the invention to: in solution prior art, direction finder sensitivity, degree of accuracy and direction finding speed can not
The problem taken into account, it is proposed that one has high sensitivity, pinpoint accuracy concurrently is the highest to the coherence request of parts, it is possible to quickly
The amplitude direction-finding system of direction finding and method；Optimization computation desired data can also be met simultaneously, measurement result can be carried out
Optimization computation, is 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:
The single pass optimization of multiple antennas is than width fluorescence spectrum radio direction-finding system, it is characterised in that: include
At least Third Mate's known direction feature and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, and respectively by the amplitude-frequency characteristic of the radio signal received
The monitoring that reason is 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 wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected.
Described beam antenna is log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna and complex loop antenna
In the combination of one or more.
Overpaying beam antenna the most identical, the angle between any two pairs of beam antennas is not more than the main beam width of beam antenna
Degree.
Overpaying beam antenna to differ, the angle between any two pairs of neighboring directional antenna is not more than two pairs of beam antenna masters
The meansigma methods of beam angle.
Radio direction-finding system also includes for being connected with microprocessor, measures beam antenna indication azimuthal electronics sieve
Dish；Described electronic compass is connected with microprocessor two-way communication.
Described monitoring reception equipment is radio receiver, frequency sweep audiofrequency spectrometer or FFT spectrum instrument.
The single pass optimization of multiple antennas is than width fluorescence spectrum wireless direction finding method, it is characterised in that:
By at least Third Mate's known direction feature and order to beam antenna, receive radio signal；
Overpay the connection between beam antenna and monitoring reception equipment by electronic control radio frequency on-off control, overpay beam antenna in turn
Connect with monitoring reception equipment, in the radio signal transmission extremely monitoring reception equipment that beam antenna will receive；
The radio signal that receives of beam antenna is received by monitoring reception equipment, and the width of radio signal that will receive
Frequently characteristic processing is fluorescence spectrum data；
Receive the monitoring fluorescence spectrum data that record of reception equipment by microprocessor and be analyzed, it is thus achieved that in different orientations
The measured signal intensity of characteristic frequency and specific instant probability；
Carry out optimization modeling in the microprocessor, with radio signal azimuth as decision variable, with real in different orientations
Survey signal intensity and according to the cumulant of deviation between the signal intensity of the direction character reckoning of the beam antenna on this azimuth
For object function, set up without constraint Nonlinear programming Model；
It is optimized calculating by microprocessor, solves the signal arrival bearing of specific instant probability in characteristic frequency so that partially
The aspect angle of difference cumulant minimum is i.e. signal arrival bearing.
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 Qie Bixue
Husband's distance model.
Compared with prior art, the useful technique effect that the present invention is brought shows:
1, direction-finding system disclosed by the invention, has maximum-signal method, minimum signal method and the advantage of existing amplitude relative method concurrently, fills
Dividing all directional characteristics that make use of beam antenna, direction finder sensitivity is high, and bearing accuracy is the highest, and the concordance to parts
Less demanding；Data supporting is provided for optimization computation, can not only direction finding in real time, it is also possible to utilize the data stored to survey afterwards
To.
2, present invention also offers a kind of single pass optimization of multiple antennas than width fluorescence spectrum wireless direction finding method, basis
The direction-finding method of disclosure of the invention can reach real-time direction finding, and the direction-finding method of the present invention has maximum-signal method, minimum signal method concurrently
With the advantage of existing amplitude relative method, taking full advantage of all directional characteristics of beam antenna, direction finder sensitivity is high, and direction finding is accurate
Spend the highest, and the highest to the coherence request of parts；For optimization computation provide data supporting, can not only direction finding in real time,
It also is able to utilize the data direction finding afterwards of storage.
3, the direction-finding method of the present invention, with aspect angle as decision variable, with the reality of characteristic frequency in different orientations
Between the signal intensity that survey signal intensity and the antenna performance according to beam antenna calculate, the cumulant of deviation is object function, builds
Vertical without constraint Nonlinear programming Model；And carry out optimization computation by microprocessor, solve the signal incoming wave in characteristic frequency
Direction so that the aspect angle of deviation cumulant minimum is i.e. signal arrival bearing, it is achieved that the real-time survey of radio signal
To, compared with prior art the effect of the inventive method shows: the pioneering fixed antenna radio utilizing digital phosphor frequency spectrum
Direction finding, solves the quick direction finding problem of transient signal and homogenous frequency signal.Traditional fixed antenna wireless direction finding method, including
Amplitude relative method, phase method, Doppler method, time difference method and Estimation of Spatial Spectrum method etc., utilize electronic circuit to realize, it is impossible to utilizes
Digital phosphor frequency spectrum data, the most just cannot realize fixed antenna direction-finding station.The direction-finding method of the present invention, in the microprocessor
Direction finding computing is carried out, it is possible to realize utilizing the fixed antenna direction-finding station of digital phosphor frequency spectrum with optimization method.
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:
The single pass optimization of multiple antennas than width fluorescence spectrum radio direction-finding system, including:
At least Third Mate's known direction feature and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, and respectively by the amplitude-frequency characteristic of the radio signal received
The monitoring that reason is 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 wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected.
Embodiment 2
As another embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
The single pass optimization of multiple antennas than width fluorescence spectrum radio direction-finding system, including:
At least Third Mate's known direction feature and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, in the present embodiment, monitoring reception equipment will receive respectively
The amplitude-frequency characteristic of radio signal of every pair of beam antenna be processed as fluorescence spectrum data；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected；
Described beam antenna is in log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna and complex loop antenna
The combination of one or more.Overpay beam antenna the most entirely log-periodic antenna in the present embodiment or be entirely
Yagi aerial or entirely electromagnetic horn or entirely double-ridged horn antenna or entirely complex loop antenna；Also
Can be to overpay beam antenna to be respectively adopted different types of antenna.
Embodiment 3
As another embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
The single pass optimization of multiple antennas than width fluorescence spectrum radio direction-finding system, including:
At least Third Mate's known direction feature and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, in the present embodiment, monitoring reception equipment will receive respectively
The amplitude-frequency characteristic of radio signal of every pair of beam antenna be processed as fluorescence spectrum data；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected；
Described beam antenna is in log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna and complex loop antenna
A kind of.Overpay in the present embodiment beam antenna the most entirely log-periodic antenna or entirely yagi aerial or
It is entirely electromagnetic horn or entirely double-ridged horn antenna or entirely complex loop antenna；Overpay beam antenna equal
Identical, angle between any two pairs of beam antennas is not more than the main beam width of beam antenna.
In the present embodiment, it is also possible to be to overpay beam antenna to be respectively adopted different types of antenna, overpay beam antenna
Differing, the angle between any two pairs of neighboring directional antenna is not more than the meansigma methods of two pairs of beam antenna main beam widths.
Antenna number need to meet N >=CEIL(360/S in the present embodiment), and N >=3, it becomes possible to accurately direction finding, S represents
Antenna main beam width.
Embodiment 4
As another embodiment of the present invention, with reference to Figure of description 1, present embodiment discloses:
The single pass optimization of multiple antennas than width fluorescence spectrum radio direction-finding system, including:
4 pairs of known direction features and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, in the present embodiment, monitoring reception equipment will receive respectively
Every pair of beam antenna radio signal amplitude-frequency characteristic process fluorescence spectrum data；
For being connected with monitoring reception equipment, and process the fluorescence spectrum data that monitoring reception equipment records, carry out wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected；
Described beam antenna is in log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna and complex loop antenna
A kind of.Overpay in the present embodiment beam antenna the most entirely log-periodic antenna or entirely yagi aerial or
It is entirely electromagnetic horn or entirely double-ridged horn antenna or entirely complex loop antenna；Overpay beam antenna equal
Identical, angle between any two pairs of beam antennas is not more than the main beam width of beam antenna；
In the present embodiment, it is also possible to be to overpay beam antenna to be respectively adopted different types of antenna, overpay beam antenna not phase
With, the angle between any two pairs of neighboring directional antenna is not more than the meansigma methods of two pairs of beam antenna main beam widths；
Radio direction-finding system also includes for being connected with microprocessor, measures the azimuthal electronic compass of beam antenna indication；
Described electronic compass is connected with microprocessor two-way communication；Described monitoring reception equipment includes radio receiver, frequency sweep frequency spectrum
Instrument or FFT spectrum instrument.Data match after the monitoring reception equipment used and process radio signal amplitude-frequency characteristic.
Embodiment 5
As another embodiment of the present invention, present embodiment discloses:
The single pass optimization of multiple antennas is than width fluorescence spectrum wireless direction finding method, by least Third Mate's known direction feature
And order to beam antenna, receive radio signal；
Overpay the connection between beam antenna and monitoring reception equipment by electronic control radio frequency on-off control, overpay beam antenna in turn
Connect with monitoring reception equipment, in the radio signal transmission extremely monitoring reception equipment that beam antenna will receive；
The radio signal that receives of beam antenna is received by monitoring reception equipment, and the width of radio signal that will receive
Frequently characteristic processing is fluorescence spectrum data；
Receive the monitoring fluorescence spectrum data that record of reception equipment by microprocessor and be analyzed, it is thus achieved that in different orientations
The measured signal intensity of characteristic frequency and specific instant probability；
Carry out optimization modeling in the microprocessor, with radio signal azimuth as decision variable, with real in different orientations
Survey signal intensity and according to the cumulant of deviation between the signal intensity of the direction character reckoning of the beam antenna on this azimuth
For object function, set up without constraint Nonlinear programming Model；
It is optimized calculating by microprocessor, solves the signal arrival bearing of specific instant probability in characteristic frequency so that partially
The aspect angle of difference cumulant minimum is i.e. signal arrival bearing.
Embodiment 6
As another embodiment of the present invention, present embodiment discloses:
The single pass optimization of multiple antennas is than width fluorescence spectrum wireless direction finding method, by 4 pairs of known direction features and fixed
Unidirectional beam antenna, receives radio signal；
By the connection between 4 pairs of beam antennas of electronic control radio frequency on-off control and monitoring reception equipment, 4 pairs of beam antennas in turn with
Monitoring reception equipment connection, in the radio signal transmission extremely monitoring reception equipment that beam antenna will receive；
The radio signal that receives of beam antenna is received by monitoring reception equipment, and the width of radio signal that will receive
Frequently characteristic processing is fluorescence spectrum data；
Receive the monitoring fluorescence spectrum data that record of reception equipment by microprocessor and be analyzed, it is thus achieved that in different orientations
The measured signal intensity of characteristic frequency and specific instant probability；
Carry out optimization modeling in the microprocessor, with radio signal azimuth as decision variable, with real in different orientations
Survey signal intensity and according to the cumulant of deviation between the signal intensity of the direction character reckoning of the beam antenna on this azimuth
For object function, set up without constraint Nonlinear programming Model；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 range set up by minimum distance method
Method model；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 Europe
Formula distance model, it is also possible to set up minimum Chebyshev's distance model；
It is optimized calculating by microprocessor, solves the signal arrival bearing of specific instant probability in characteristic frequency so that partially
The aspect angle of difference cumulant minimum is i.e. signal arrival bearing.
Claims (9)
1. the single pass optimization of multiple antennas is than width fluorescence spectrum radio direction-finding system, it is characterised in that: include
At least Third Mate's known direction feature and order to beam antenna；
Switch for controlling to overpay beam antenna and monitor the electronic control radio frequency connected between reception equipment；
For receiving the radio signal that beam antenna receives, and respectively by the amplitude-frequency characteristic of the radio signal received
The monitoring that reason is 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 wireless electrical measurement
To microprocessor；
Described monitoring reception equipment is set up two-way communication with microprocessor and is connected.
2. the single pass optimization of multiple antennas as claimed in claim 1 is than width fluorescence spectrum radio direction-finding system, its feature
It is: described beam antenna is in log-periodic antenna, yagi aerial, electromagnetic horn, double-ridged horn antenna and complex loop antenna
The combination of one or more.
3. the single pass optimization of multiple antennas as claimed in claim 2 is than width fluorescence spectrum radio direction-finding system, its feature
Being: overpay beam antenna the most identical, the angle between any two pairs of beam antennas is not more than the main beam width of beam antenna.
4. the single pass optimization of multiple antennas as claimed in claim 2 is than width fluorescence spectrum radio direction-finding system, its feature
Being: overpay beam antenna and differ, the angle between any two pairs of neighboring directional antenna is not more than two pairs of main ripples of beam antenna
The meansigma methods of beam width.
5. the single pass optimization of multiple antennas as claimed in claim 1 is than width fluorescence spectrum radio direction-finding system, its feature
It is: radio direction-finding system also includes for being connected with microprocessor, measures the azimuthal electronic compass of beam antenna indication；
Described electronic compass is connected with microprocessor two-way communication.
6. the single pass optimization of multiple antennas as described in claim 1-5 any one is than width fluorescence spectrum direction-finding station system
System, it is characterised in that: described monitoring reception equipment is radio receiver, frequency sweep audiofrequency spectrometer or FFT spectrum instrument.
7. the single pass optimization of multiple antennas is than width fluorescence spectrum wireless direction finding method, it is characterised in that:
By at least Third Mate's known direction feature and order to beam antenna, receive radio signal；
Overpay the connection between beam antenna and monitoring reception equipment by electronic control radio frequency on-off control, overpay beam antenna in turn
Connect with monitoring reception equipment, in the radio signal transmission extremely monitoring reception equipment that beam antenna will receive；
The radio signal that receives of beam antenna is received by monitoring reception equipment, and the width of radio signal that will receive
Frequently characteristic processing is fluorescence spectrum data；
Receive the monitoring fluorescence spectrum data that record of reception equipment by microprocessor and be analyzed, it is thus achieved that in different orientations
The measured signal intensity of characteristic frequency and specific instant probability；
Carry out optimization modeling in the microprocessor, with radio signal azimuth as decision variable, with real in different orientations
Survey signal intensity and according to the cumulant of deviation between the signal intensity of the direction character reckoning of the beam antenna on this azimuth
For object function, set up without constraint Nonlinear programming Model；
It is optimized calculating by microprocessor, solves the signal arrival bearing of specific instant probability in characteristic frequency so that partially
The aspect angle of difference cumulant minimum is i.e. signal arrival bearing.
8. the single pass optimization of multiple antennas as claimed in claim 7 is than width fluorescence spectrum wireless direction finding method, its feature
It is: described is LEAST SQUARES MODELS FITTING or minimum distance method model without constraint Nonlinear programming Model.
9. the single pass optimization of multiple antennas as claimed in claim 8 is than width fluorescence spectrum wireless direction finding method, its feature
It is: described minimum distance method model includes minimum manhatton distance model, minimum euclidean distance model or minimum Chebyshev
Distance model.
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| CN107064863A (en) * | 2017-03-30 | 2017-08-18 | 天津市德力电子仪器有限公司 | Method for realizing single antenna direction finding by performing correlation operation based on antenna directional diagram data |
| CN110058193A (en) * | 2019-04-22 | 2019-07-26 | 西安空间无线电技术研究所 | A kind of digital multiple beam angle-measuring method and system based on single receiving channel |
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