CN109917334A - The method that aircraft platforms intercept and capture sensibility is quantitatively evaluated - Google Patents
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- 238000000034 method Methods 0.000 title claims abstract description 25
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- 230000035945 sensitivity Effects 0.000 claims description 4
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Abstract
The invention proposes a kind of methods of intercepting and capturing sensibility that aircraft platforms are quantitatively evaluated.The sensibility intercepted and captured can be made to minimize using the present invention, promote full machine viability, the present invention is achieved through the following technical solutions: according to the gain pattern of the Passive Detention System threat data library and active radio frequency sensor of other side under antenna coordinate system, in three dimensions, the corresponding engagement range of each pitch angle and azimuth under computer body coordinate system, rectangular coordinate system is converted by spherical coordinate system, three-dimensional is obtained and is trapped distance；The active radio frequency sensor of frequency range is threatened for being in, and is calculated the engagement range of each sensor in threatening area, is taken maximum engagement range as final result；For frequency range and threatening area is threatened, the equivalent intercepting and capturing ball of calculating aircraft platform calculates the equivalent intercepting and capturing radius of a ball by equivalent intercepting and capturing ball；Distance and the equivalent intercepting and capturing sensibility intercepted and captured the radius of a ball and aircraft platforms are quantitatively evaluated are trapped for the aircraft platforms three-dimensional of above-mentioned acquisition.
Description
Technical field
The present invention relates to a kind of methods that qualitative assessment aircraft platforms intercept and capture sensibility, for assessing the passive spy in full airspace
Under examining system Antagonistic Environment, the intercepting and capturing sensibility of active radio frequency sensor radiation signal.
Background technique
Aircraft platforms are equipped with various radio frequency sensors, including detection, communication, navigation, identification, interference etc..It is therein
Active radio frequency sensor has the spies such as number of species are more, antenna arrangement is wide, frequency range distribution width using entire mission phase is run through
Point needs actively external electromagnetic radiation signal when work, therefore the risk intercepted and captured by Passive Detention System is high, to aircraft platforms
Viability constitute grave danger.These all propose very high want to the intercepting and capturing sensibility of aircraft platforms without exception
It asks, the intercepting and capturing sensibility that active radio frequency sensor radiation signal is quantitatively evaluated is extremely urgent.
Active radio frequency sensor radiation signal on aircraft platforms, the band limits of transmitting is very wide, from tens MHz to
Tens GHz, signal form is complicated, there is continuous wave, quasi c. w., pulse signal etc..Every kind of sensor is in different task phases
There are different use demands, including radiation regimes, radiation mode and radiation parameter etc., one of them important technical parameter is
The antenna gain patterns of active radio frequency sensor.Aircraft platforms face the various passive detections of other side in task implementation procedure
System threatens, including ground is fixed and moveable continental rise Passive Detention System, the Shipborne Passive that sea moves slowly at detect system
System, aerial Airborne Passive detection system and the reconnaissance satellite of space-based etc..The geographical coordinate of different Passive Detention Systems is believed
Breath is different, including longitude, latitude, height, speed, acceleration etc..Meanwhile the detection performance parameter of different Passive Detention Systems
Also different, including antenna gain, receiver sensitivity, direction finding precision, position error etc..It is sensed in aircraft platforms active radio frequency
In the confrontation scene of device and other side's Passive Detention System, aircraft platforms by intelligence analysis or Situation Awareness obtain sky, day,
The geographic coordinate information and detection performance parameter of the Passive Detention System in land, sea.Aircraft platforms take active radio frequency to sense
The different of device use combination, join to the radiation regimes in the domains such as time, space, frequency, energy, waveform, radiation mode and radiation
Number is managed, and is minimized the sensibility intercepted and captured, is promoted full machine viability.The intercepting and capturing sensibility of aircraft platforms quantifies
Assessment is trapped distance by the three-dimensional of calculating aircraft platform active radio frequency sensor and the equivalent intercepting and capturing radius of a ball is realized.
Summary of the invention
The purpose of the present invention is to propose to one kind, and the sensibility intercepted and captured can be made to minimize, and promote the flight of full machine viability
The quantitative evaluating method of the intercepting and capturing sensibility of device platform.
Above-mentioned purpose of the invention can be trapped distance by aircraft platforms three-dimensional and calculate and the equivalent intercepting and capturing radius of a ball
Two measures are calculated to reach.A method of aircraft platforms are quantitatively evaluated and intercept and capture sensibility, there is following technical characteristic: according to
According to the scene that aircraft platforms are intercepted and captured by Passive Detention System, aircraft platforms passive spy of other side in task implementation procedure is obtained
The distributed data of examining system three-dimensional space establishes the geographic coordinate information for containing each Passive Detention System and detection performance ginseng
Several threat data libraries；According to gain pattern of the load aircraft platforms active radio frequency sensor under antenna coordinate system, obtain
The initial phase for taking antenna carries out antenna coordinate system and converts to body coordinate system angular relationship further according to the established angle of antenna；So
Afterwards in three dimensions, the corresponding engagement range of each pitch angle and azimuth under computer body coordinate system turns spherical coordinate system
Rectangular coordinate system is turned to, three-dimensional is obtained and is trapped distance；According to the Passive Detention System threat data library of other side, determines and threaten area
Domain and threat frequency range；For be in threaten frequency range active radio frequency sensor, calculate threatening area in each sensor intercepting and capturing away from
From taking maximum engagement range as final result；For threat frequency range and threatening area, the equivalent intercepting and capturing of calculating aircraft platform
Ball calculates the equivalent intercepting and capturing radius of a ball by equivalent intercepting and capturing ball；Distance is trapped for the aircraft platforms three-dimensional of above-mentioned acquisition and is waited
Effect intercepts and captures the intercepting and capturing sensibility that aircraft platforms are quantitatively evaluated in the radius of a ball.
The invention has the following beneficial effects:
Minimize the sensibility intercepted and captured.The present invention is deployed in the Passive Detention System of different location according to each, to complete
Machine has a three-dimensional to be trapped range distribution figure, obtains the data that aircraft platforms three-dimensional is trapped distance, day can be constrained
The beamforming function of line changes the parameters such as the beam position, beam angle, minor level of antenna, so that the zero point pair of wave beam
Quasi- Passive Detention System threatens direction, the distance being trapped is reduced, so that aircraft platforms are in anti-Passive Detention System position of dashing forward
When, the sensibility of intercepting and capturing minimizes.
Promote full machine viability.The present invention utilizes the equivalent intercepting and capturing radius of a ball, can clearly characterize in flight course, and height is cut
Obtain threatening area, can be used for aircraft platforms in task implementation procedure, in face of sky, day, land, sea Passive Detention System, it is auxiliary
The design for helping radiation to manage formulates stealthy anti-strategy of dashing forward, improves the viability of full machine.
The present invention is according to the Passive Detention System threat data library and active radio frequency sensor of other side under antenna coordinate system
Gain pattern, distance and the equivalent intercepting and capturing radius of a ball are trapped by the three-dimensional to full machine multisensor and calculated, can be quantified
The intercepting and capturing sensibility of full machine is assessed, corresponding radio-frequency radiation management and control measures can be taken to provide important references for aircraft platforms.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that three-dimensional of the present invention is trapped distance calculating step schematic diagram.
Fig. 2 is that the equivalent intercepting and capturing radius of a ball of the present invention calculates step schematic diagram.
Specific embodiment
Refering to fig. 1, Fig. 2.According to the present invention, the scene intercepted and captured according to aircraft platforms by Passive Detention System, is flown
The distributed data of row device platform other side's Passive Detention System three-dimensional space in task implementation procedure, foundation contain each passive
The geographic coordinate information of detection system and the threat data library of detection performance parameter；It is passed according to load aircraft platforms active radio frequency
Gain pattern of the sensor under antenna coordinate system, obtains the initial phase of antenna, further according to the established angle of antenna, carries out antenna
Coordinate system converts to body coordinate system angular relationship；Then in three dimensions, under computer body coordinate system each pitch angle and
The corresponding engagement range in azimuth, converts rectangular coordinate system for spherical coordinate system, obtains three-dimensional and is trapped distance；According to other side's
Passive Detention System threat data library determines threatening area and threatens frequency range；The active radio frequency sensing of frequency range is threatened for being in
Device calculates the engagement range of each sensor in threatening area, takes maximum engagement range as final result；For threaten frequency range and
Threatening area, the equivalent intercepting and capturing ball of calculating aircraft platform calculate the equivalent intercepting and capturing radius of a ball by equivalent intercepting and capturing ball；It is obtained for above-mentioned
The aircraft platforms three-dimensional obtained is trapped distance and the equivalent intercepting and capturing sensibility intercepted and captured the radius of a ball and aircraft platforms are quantitatively evaluated.
Refering to fig. 1.It is trapped in distance calculating three-dimensional:
Step 101, the three-dimensional gain pattern being trapped under distance calculating loaded antenna coordinate system, while obtaining the initial of antenna
Phase αi(i=1 ... n), obtains the galactic cosmic rays of each antennaIt is obtained by Vector modulation empty
Interradius firing associationIn formula, Gi(i=1 ... n) is the gain of antenna, and n is antenna amount.
Step 102, in antenna coordinate system into the conversion of body coordinate system angular relationship, according to unit vector in space in machine
Pitching angle theta under body coordinate systembThe azimuth andObtain coordinate of the unit vector under body coordinate system
According to pitching angle theta of the same unit vector under antenna coordinate systemaThe azimuth andSame unit vector is then obtained to exist
Coordinate under antenna coordinate systemThere is following relational expression to set upIn formulaFor day
Spin matrix of the line coordinates system to body coordinate system.
In formula, β is antenna setting angle, substitutes into XbAnd XaAfter obtain
If providing the pitching angle theta under antenna coordinate systemaThe azimuth andCan be resolved to obtain by above formula under body coordinate system with its
Corresponding pitching angle thetabThe azimuth andCoordinate.There is following relational expression to set up, is antenna coordinate system to body coordinate system in formula
Spin matrix.
Step 103, each pitching angle theta under computer body coordinate systembThe azimuth andCorresponding engagement range
In formula, PtFor the peak transmitted power of sensor, f is the emission signal frequency of sensor, and c is the light velocity,For
The transmitting antenna of sensor Passive Detention System direction gain, L be system loss include transmitting terminal loss, atmospheric loss with
And intercept and capture end loss, GIFor the antenna gain of Passive Detention System, SminFor Acquisition Receiver sensitivity.
Coordinate.There is following relational expression to set up, is the spin matrix of antenna coordinate system to body coordinate system in formula.
Step 104, rectangular coordinate system is converted by spherical coordinate system, obtains three-dimensional and is trapped distance.
The each pitching angle theta of three-dimensional space is obtained in step 103bThe azimuth andCorresponding engagement rangeAfterwards, lead to
Cross following spherical coordinate systemTo the conversion of rectangular coordinate system (x, y, z), available three-dimensional is trapped distance
Refering to Fig. 2.It is calculating threatening area and is threatening in frequency range, in the equivalent intercepting and capturing radius of a ball of aircraft platforms:
Step 201, the equivalent radius of a ball of intercepting and capturing calculates the threatening area of load aircraft platforms and threatens frequency range.Threatening area includes
Pitch angle [θ1 θ2] and azimuthThreat frequency range is [f1 f2]。
Step 202, the equivalent radius of a ball of intercepting and capturing calculates the active radio frequency sensor that frequency range is threatened for being in, and asks threat respectively
In region, the engagement range of each sensor takes maximum engagement range as final result
Step 203, it is calculating threatening area and is threatening in the equivalent intercepting and capturing radius of a ball in frequency range, three-dimensional space is used etc.
Effect intercepts and captures ball to indicateAnd then obtain the equivalent intercepting and capturing radius of a ball
Above in conjunction with attached drawing to the present invention have been described in detail, it is to be noted that being described in examples detailed above
Preferred embodiment only of the invention, is not intended to restrict the invention, and for those skilled in the art, the present invention can
There are various modifications and variations, for example process flow and processing sequence can be changed in conjunction with concrete implementation, design can be selected to calculate
Different parameters in the process realize technical method of the invention.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of method that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, has following technical characteristic: according to aircraft platforms
The scene intercepted and captured by Passive Detention System obtains aircraft platforms other side's Passive Detention System three-dimensional space in task implementation procedure
Between distributed data, establish contain each Passive Detention System geographic coordinate information and detection performance parameter threat data
Library；According to gain pattern of the load aircraft platforms active radio frequency sensor under antenna coordinate system, the initial of antenna is obtained
Phase carries out antenna coordinate system and converts to body coordinate system angular relationship further according to the established angle of antenna；Then in three-dimensional space
In, each pitching angle theta under computer body coordinate systembThe azimuth andSpherical coordinate system is converted right angle by corresponding engagement range
Coordinate system obtains three-dimensional and is trapped distance；According to the Passive Detention System threat data library of other side, threatening area and threat are determined
Frequency range；The active radio frequency sensor of frequency range is threatened for being in, and is calculated the engagement range of each sensor in threatening area, is taken maximum
Engagement range is as final result；For threat frequency range and threatening area, the equivalent intercepting and capturing ball of calculating aircraft platform, by equivalent
It intercepts and captures ball and calculates the equivalent intercepting and capturing radius of a ball；Distance and equivalent intercepting and capturing ball half are trapped for the aircraft platforms three-dimensional of above-mentioned acquisition
The intercepting and capturing sensibility of diameter qualitative assessment aircraft platforms.
2. the method according to claim 1 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: three-dimensional quilt
Engagement range calculates the gain pattern under loaded antenna coordinate system, obtains the initial phase α of antennai(i=1 ... n) is obtained each
The galactic cosmic rays of antennaSpace, which is obtained, by Vector modulation radiates resultant fieldIn formula, Gi(i=1 ... n) is the gain of antenna, and n is antenna amount.
3. the method according to claim 2 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: in antenna
Coordinate system is into the conversion of body coordinate system angular relationship, according to pitching angle theta of the unit vector in space under body coordinate systembWith
AzimuthObtain coordinate of the unit vector under body coordinate systemAccording to same unit vector
Pitching angle theta under antenna coordinate systemaThe azimuth andThen obtain coordinate of the same unit vector under antenna coordinate system
4. the method according to claim 3 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: body is sat
Coordinate under mark systemIn formulaFor the spin matrix of antenna coordinate system to body coordinate system
In formula, β is antenna setting angle, substitutes into XbAnd XaAfter obtain
If providing the pitching angle theta under antenna coordinate systemaThe azimuth andIt is right with it under body coordinate system then to resolve to obtain by above formula
The pitching angle theta answeredbThe azimuth and
5. the method according to claim 4 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: computer
Each pitching angle theta under body coordinate systembThe azimuth andCorresponding engagement range
In formula, PtFor the peak transmitted power of sensor, f is the emission signal frequency of sensor, and c is the light velocity,To pass
The transmitting antenna of sensor Passive Detention System direction gain, L be system loss include transmitting terminal loss, atmospheric loss and
Intercept and capture end loss, GIFor the antenna gain of Passive Detention System, SminFor Acquisition Receiver sensitivity.
6. the method according to claim 5 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: obtain three
The each pitching angle theta of dimension spacebThe azimuth andCorresponding engagement rangeAfterwards, pass through following spherical coordinate systemTo the conversion of rectangular coordinate system (x, y, z), obtains three-dimensional and be trapped distance
7. the method according to claim 6 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: equivalent section
The radius of a ball is obtained to calculate the threatening area of load aircraft platforms and threaten frequency range.Threatening area includes pitch angle [θ1 θ2] and orientation
AngleThreat frequency range is [f1 f2]。
8. the method according to claim 7 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: equivalent section
It obtains the radius of a ball and calculates the active radio frequency sensor for threatening frequency range for being in, ask in threatening area respectively, the intercepting and capturing of each sensor
Distance takes maximum engagement range as final result
9. the method according to claim 8 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: calculating
In the equivalent intercepting and capturing radius of a ball in threatening area and threat frequency range, three-dimensional space is indicated with equivalent intercepting and capturing ballAnd then obtain the equivalent intercepting and capturing radius of a ball
10. the method according to claim 9 that aircraft platforms are quantitatively evaluated and intercept and capture sensibility, it is characterised in that: pass through
Aircraft platforms three-dimensional is trapped distance calculating and the calculating kind of the equivalent intercepting and capturing radius of a ball and aircraft platforms intercepting and capturing sensitivity is quantitatively evaluated
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257655A (en) * | 2020-02-28 | 2020-06-09 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Intercepted distance testing device for radio frequency sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157408A (en) * | 1990-05-25 | 1992-10-20 | Navcom Defence Electronics, Inc. | Low probability of interception relative position determination system |
| RU2003123556A (en) * | 2003-07-24 | 2005-02-10 | Федеральное государственное унитарное предпри тие научно-производственное предпри тие "Радиосв зь" (RU) | METHOD FOR DETERMINING UNKNOWN TRANSMITTER COORDINATES IN A SATELLITE COMMUNICATION SYSTEM |
| CN109217947A (en) * | 2018-07-26 | 2019-01-15 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method that test data chain radiation of equipment signal is trapped probability performance |
-
2019
- 2019-01-31 CN CN201910094613.9A patent/CN109917334A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157408A (en) * | 1990-05-25 | 1992-10-20 | Navcom Defence Electronics, Inc. | Low probability of interception relative position determination system |
| RU2003123556A (en) * | 2003-07-24 | 2005-02-10 | Федеральное государственное унитарное предпри тие научно-производственное предпри тие "Радиосв зь" (RU) | METHOD FOR DETERMINING UNKNOWN TRANSMITTER COORDINATES IN A SATELLITE COMMUNICATION SYSTEM |
| CN109217947A (en) * | 2018-07-26 | 2019-01-15 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The method that test data chain radiation of equipment signal is trapped probability performance |
Non-Patent Citations (3)
| Title |
|---|
| JOHN F. DISHMAN: "SEVR: a LPD metric for a 3-D battle space", 《PROCEEDINGS OF THE 2007 IEEE MINITARY COMMUNICATIONS CONFERENCE》 * |
| 宋文彬等: "传感器协同射频隐身仿真系统性能评估", 《火力与指挥控制》 * |
| 杨红兵等: "飞机射频隐身表征参量及其影响因素分析", 《航空学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111257655A (en) * | 2020-02-28 | 2020-06-09 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Intercepted distance testing device for radio frequency sensor |
| CN111257655B (en) * | 2020-02-28 | 2022-02-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Intercepted distance testing device for radio frequency sensor |
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Application publication date: 20190621 |