CN1715952A - Electronic angle tracing system for tracing microwave radiation source in air - Google Patents
Electronic angle tracing system for tracing microwave radiation source in air Download PDFInfo
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- CN1715952A CN1715952A CN 200410025504 CN200410025504A CN1715952A CN 1715952 A CN1715952 A CN 1715952A CN 200410025504 CN200410025504 CN 200410025504 CN 200410025504 A CN200410025504 A CN 200410025504A CN 1715952 A CN1715952 A CN 1715952A
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Abstract
The present invention has one controllable microwave delay line T and one fixed microwave delay line T0 added to radar phase interference instrument to constitute one delay tracking system to track time difference, so that the system can detect the angle of the spatial radiation source relative to the system sight line and track the spatial radiation.
Description
Affiliated technical field
The invention belongs to the antiradiation missile technical field, or rather passive radar detection technology or electronic reconnaissance
Technical field.
Background technology
Radar tracking system develops into phased array by the universal tracker of waiting for an opportunity of precision, its tracking accuracy and speed have had qualitative leap, both solved the difficult problem of multiple target tracking, and save complicated elaborate servo tracker again, this is the sign of external third generation tracking radar innovation.Phased-array radar has become conventional military radar at present.
The development trend of external target seeker is the electronization of radar seeker angle tracking system now, and developing direction is the phased array target seeker and the The Electronic Angle Tracking Seeker of strapdown type.The Electronic Angle Tracking system has the function of phased array, but structure is simpler.On the basis of radar correlator, increase microwave time delay tracker, just formed the Electronic Angle Tracking system.When extraterrestrial target is carried out angle tracking, need not complicated universal servo-drive system, so its tracking velocity there has been the variation of matter, can under guided missile fast rotational state, carry out angle tracking to extraterrestrial target.
Summary of the invention
The present invention provides its critical system Electronic Angle Tracking system to passive counter radiation target seeker, also provides a selection to the electronic reconnaissance means, and the present invention also can be used for the target detection of being murdered of marine forest rescue usefulness.
The present invention is a relevant a kind of Electronic Angle Tracking system, and it is made up of whole of double antenna, two-way receiver, microwave fixed delay line, microwave vairable delay line, limiting amplifier, automatic control amplifier, A/D converter, digital integrator, interceptor, electronic switch, angle search circuit and differentiating circuit etc.At first the microwave signal of being sent by aerial target is received the machine reception through double antenna.Antenna can adopt the wide lobe helical antenna of medium charge or adopt the spiral shell club spike antenna of ceramic dielectric filling, and the trail angle that the topped target seeker of lobe width is required is realized the wide-angle Electronic Angle Tracking.Two antenna back connect the receiver of two symmetries respectively, and No. one receiver wherein connects the input end of microwave numerical-control vairable delay line, produces T time delay, and the microwave delay line on another road is operated in fixedly microwave delay line state, generation T time delay
0, be used for adjusting No. two receivers, make it satisfy the width of cloth and balance each other, the microwave numerical-control vairable delay line is used to automatic control lag amount, makes the time difference of No. two receivers be (T-T
0), follow the tracks of the input time difference τ of No. two receivers that cause by progressive error, realize Electronic Angle Tracking, also can claim time difference tracker.The figure place of microwave numerical-control vairable delay line adopts seven or eight, decides according to the angle tracking scope of system requirements, spacing and the service band between antenna.Control with digital signal the time delay of each, when digital signal is 1, and switch on delay, be τ time delay
1, when digital signal was 0, then postponing was 0, every delay can be pressed
Be provided with.The microwave multiplier is in the Electronic Angle Tracking system, it is the error producing component, be used for producing the quadrature component that the delay because of time difference of No. two receivers and introducing causes, wherein sinusoidal component is as Electronic Angle Tracking systematic error signal, and its cosine component is as the interceptor input signal.The sinusoidal signal of microwave multiplier output is exaggerated and is input in the digital integrator through automatic control amplifier.A/D conversion and digital integrator are the control circuits of Electronic Angle Tracking system.For pulse signal, should comprise wave detector and low-frequency amplifier in the control circuit.Control circuit also can adopt mimic channel, and A/D changes output, goes the retardation of controlled microwave numerical control vairable delay line, and digital integrator need make analogue integrator into.The extraction of target line of sight rate signal can obtain through differential from the output of digital integrator.Also can obtain through low-pass filter from the output of automatic control amplifier.Interceptor and electronic switch are the conversions for angle searching that realizes the Electronic Angle Tracking system and angle tracking.During the system perspective search, with the zigzag searching voltage that the angle search circuit produces, remove to control multidigit numerical control microwave delay line by electronic switch, realize angle searching, interceptor is according to the signal maximum principle, and the control electronic switch is connected tracker.The present invention is the angle-tracking system on a plane, can be used for rotating missile, and a passage can carry out the omnirange angle to extraterrestrial target to be followed the tracks of.As be used in not on the rotating missile, need two planes (orientation and pitching) carry out angle and follow the tracks of target, then need be with two Electronic Angle Tracking passages.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fig. 1 is the dual mode guidance missile homer, and Fig. 1 a is the rotation missile homer, and Fig. 2 is non-rotating missile homer;
The wiring diagram of Fig. 2 Electronic Angle Tracking system;
Fig. 3 is automatic control amplifier block diagram.
Specific implementation method
Fig. 1 is a kind of dual mode guidance missile homer, usually this target seeker has two guided modes, a kind of is that another guided mode of infrared guidance (the second pattern target seeker among Fig. 1 a) is the passive radar guidance, and its core is exactly an Electronic Angle Tracking device of the present invention.Fig. 1 a is the rotation guided missile warhead that adopts two antennas, and a passage can carry out the omnirange angle tracking to extraterrestrial target.Fig. 1 b adopts four non-rotating guided missile warheads of antenna, and it adopts two Electronic Angle Tracking passages (azimuthal channel and pitch channel) that target is carried out angle tracking.
Fig. 2 is an Electronic Angle Tracking device circuit block diagram of the present invention, and it is made up of whole of antenna (1), antenna (2), receiver (3), receiver (4), microwave fixed delay line (5), microwave numerical-control vairable delay line (6), limiting amplifier (7), limiting amplifier (8), microwave multiplier (9), automatic control amplifier (10), interceptor (11), A/D converter (12), digital integrator (13), electronic switch (14), angle search circuit (15) and differentiating circuit (17), low-pass filter 18 etc.At first the microwave signal of being sent by aerial target is received the machine reception through antenna (1), antenna (2).Antenna (1), antenna (2) adopt the spiral shell club spike antenna of ceramic dielectric filling, and the trail angle that the topped target seeker of lobe width is required is realized the wide-angle Electronic Angle Tracking.Two antenna back connect the receiver of two symmetries respectively, and wherein No. one receiver outputs signal to the microwave numerical-control vairable delay line, produce T time delay, and another road outputs signal to microwave fixed delay line (5), produce T time delay
0, be used for adjusting No. two receivers, make it satisfy the width of cloth and balance each other, microwave numerical-control vairable delay line (6) is used to automatic control lag amount, makes the time difference of No. two receivers be (T-T
0), follow the tracks of the input time difference τ of No. two receivers that cause by progressive error, realize Electronic Angle Tracking, also can claim the time difference to follow the tracks of.The figure place of microwave numerical-control vairable delay line (6) adopts seven or eight, decides according to the angle tracking scope of system requirements, spacing and the service band between antenna.Control with digital signal the time delay of each, when digital signal is 1, and switch on delay, be τ time delay
1, when digital signal is 0, postpone then to be O that every delay can be pressed
Be provided with.Microwave multiplier 9 is in the Electronic Angle Tracking system, it is the error producing component, be used for producing the quadrature component that the delay introduced because of the time difference of No. two receivers causes, wherein sinusoidal component is as Electronic Angle Tracking systematic error signal, through control amplifier (10) amplification automatically, and be input to A/D analog to digital converter (12), analog signal conversion is become digital signal, be input to digital integrator (13) and electronic switch (14) again, remove controlled microwave vairable delay line (5), finish the closure of Electronic Angle Tracking system.A/D conversion 12 and digital integrator 13 are control circuits of Electronic Angle Tracking system.Pulse signals, control amplifier 10 should comprise wave detector and low-frequency amplifier automatically, and is shown in Figure 5.The extraction of target line of sight rate signal can obtain through differentiating circuit 17 differential from the output of digital integrator 13.Also can obtain through low-pass filter 18 from the output of automatic control amplifier 10.Cosine component is as interceptor 11 input signals.Interceptor 11 and electronic switch 14 are in order to realize the Electronic Angle Tracking system, cosine signal is through interceptor (11), go to control the conversion of electronic switch (14) state, before electronic switch (14) action, the search voltage of angle search circuit (15) is added to microwave numerical-control vairable delay line (6), realize angle searching.After electronic switch (14) action, the signal of digital integration (13) is input to microwave vairable delay line (6), realizes the closure of Electronic Angle Tracking system.After electronic switch (14) action, with the signal of digital integrator (13) behind differentiating circuit (17) differential, just can obtain the line of sight rate signal of guided missile and target, can be defeated by robot pilot after treatment and make the guided missile control signal, also the output signal of automatic control amplifier (10) can be obtained missile target and line of sight rate signal through low-pass filter (18).Interceptor 11 and electronic switch 14 are the conversions in order to realize that search of Electronic Angle Tracking system perspective and angle are followed the tracks of.During the system perspective search, with the zigzag searching voltage that angle search circuit 15 produces, remove to control multidigit numerical control microwave vairable delay line 6 by electronic switch 14, realize angle searching, interceptor 11 is according to the signal maximum principle, and control electronic switch 14 is connected tracker.The present invention is the angle-tracking system on a plane, can be used for rotating missile, and a passage can carry out the omnirange angle to extraterrestrial target to be followed the tracks of.As be used in not on the rotating missile, need two planes (orientation and pitching) carry out angle and follow the tracks of target, then need be with two Electronic Angle Tracking passages.
Claims (7)
1 one kinds of microwave radiation source detecting systems, it comprises antenna 1, antenna 2, receiver 3, receiver 4, microwave fixed delay line 5, microwave numerical-control vairable delay line 6, limiting amplifier 7, limiting amplifier 8, microwave multiplier 9, automatic control amplifier 10, interceptor 11, A/D converter (A/D converter) 12, digital integrator 13, electronic switch 14, angle search circuit 15, differentiating circuit 17, low-pass filter 18.It is characterized in that antenna 1, antenna 2 receive the microwave of space radiation, and the microwave that receives is input to receiver 3 and receiver 4.Receiver 4 is input to microwave numerical-control vairable delay line 6 with the microwave signal that receives, and produces T time delay through microwave vairable delay line 6.The output of receiver 2 connects the input end of microwave fixed delay line 5.The output signal of receiver 3 produces T time delay through the microwave fixed delay line
0Limiting amplifier 7 and limiting amplifier 8 are with the signal T of microwave numerical-control vairable delay line 6 outputs and the signal T of microwave fixed delay line 5 outputs
0Amplified and be input in the microwave multiplier 9, and 9 outputs of microwave multiplier are because of the time difference (T-T of two road signals
0) and the delay introduced and two mutually orthogonal components (sin, cos signal) of causing, both as the sinusoidal component of the error signal of Electronic Angle Tracking system with as the cosine component of interceptor input signal.Sinusoidal component is imported in the automatic control amplifier 10.Automatically control amplifier 10 is input to sinusoidal signal in the digital integrator 13, or is input in the low-pass filter 18, with output line of sight rate signal.Digital integrator 13 output signals drive electronic switch, the retardation of control figure vairable delay line 6, or output signal produces the line of sight rate signal through differentiating circuit in differentiating circuit.
2 antenna 1 and antennas 2 according to claim 1 is characterized in that this antenna adopts the wide lobe helical antenna of medium charge or the spiral shell club spike antenna of ceramic dielectric filling, and lobe width covers required tracking angle.Antenna 1 and antenna 2 have a spacing distance.
The 3 numerical control vairable delay lines 6 according to claim 1 is characterized in that its digit that adopts is seven or eight digit number.Decide according to interval and service band between angle tracking scope, antenna 1 and the antenna 2 of Electronic Angle Tracking system requirements.Control with digital signal the time delay of each, when digital signal is 1, and switch on delay, be τ time delay; When digital signal was 0, then postponing was 0.Every delay is pressed
Be provided with.
The 4 microwave multipliers 9 according to claim 1 is characterized in that producing two quadrature components, and sinusoidal component is an Electronic Angle Tracking systematic error signal, and cosine component is imported in the interceptor.
5 digital integrators according to claim 1 is characterized in that its function is a control circuit, is used for the retardation of controlled microwave numerical control vairable delay line 6.
6 interceptor 11 and electronic switches 14 according to claim 1 is characterized in that realizing the angle searching of Electronic Angle Tracking and the conversion that angle is followed the tracks of.During angle searching, the zigzag searching voltage that angle search circuit 15 produces is removed to control multidigit microwave numerical-control lag line 6, realize the angle tracking by electronic switch 14.11 control electronic switches of interceptor are connected tracker
7 differentiating circuit 17 according to claim 1 is characterized in that being used to produce the line of sight rate signal of guided missile and target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025504 CN1715952A (en) | 2004-06-28 | 2004-06-28 | Electronic angle tracing system for tracing microwave radiation source in air |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025504 CN1715952A (en) | 2004-06-28 | 2004-06-28 | Electronic angle tracing system for tracing microwave radiation source in air |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100498372C (en) * | 2007-07-06 | 2009-06-10 | 哈尔滨工程大学 | Device for tracking three radar signals of same carrier |
| CN103411482A (en) * | 2013-07-12 | 2013-11-27 | 中国航天科工集团第三研究院第八三五八研究所 | Double closed-loop electric lock loop control method based on virtual speed inner ring |
| CN104391292A (en) * | 2014-11-18 | 2015-03-04 | 无锡悟莘科技有限公司 | Radar system using main antenna as helical antenna |
| CN107528638B (en) * | 2017-07-27 | 2019-12-10 | 西安电子科技大学 | Broadband microwave signal arrival angle estimation method based on microwave photon filtering |
| CN113406435A (en) * | 2021-06-17 | 2021-09-17 | 太原理工大学 | Rapid lossless cable fault positioning device based on chaotic synchronization |
-
2004
- 2004-06-28 CN CN 200410025504 patent/CN1715952A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100498372C (en) * | 2007-07-06 | 2009-06-10 | 哈尔滨工程大学 | Device for tracking three radar signals of same carrier |
| CN103411482A (en) * | 2013-07-12 | 2013-11-27 | 中国航天科工集团第三研究院第八三五八研究所 | Double closed-loop electric lock loop control method based on virtual speed inner ring |
| CN104391292A (en) * | 2014-11-18 | 2015-03-04 | 无锡悟莘科技有限公司 | Radar system using main antenna as helical antenna |
| CN107528638B (en) * | 2017-07-27 | 2019-12-10 | 西安电子科技大学 | Broadband microwave signal arrival angle estimation method based on microwave photon filtering |
| CN113406435A (en) * | 2021-06-17 | 2021-09-17 | 太原理工大学 | Rapid lossless cable fault positioning device based on chaotic synchronization |
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