CN109286464A - Continuous wave frequency detects active jamming rejection IF signal processing Performance Test System - Google Patents
Continuous wave frequency detects active jamming rejection IF signal processing Performance Test System Download PDFInfo
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- CN109286464A CN109286464A CN201710598303.1A CN201710598303A CN109286464A CN 109286464 A CN109286464 A CN 109286464A CN 201710598303 A CN201710598303 A CN 201710598303A CN 109286464 A CN109286464 A CN 109286464A
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- interference
- continuous wave
- frequency
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/38—Jamming means, e.g. producing false echoes
Abstract
The invention discloses a kind of continuous wave frequencies to detect active jamming rejection IF signal processing Performance Test System.The system includes: continuous wave frequency detector front end module, emits continuous wave frequency detectable signal, and receive echo and export target intermediate-freuqncy signal after lower mixing；Active interference signal and front end modulated signal synchronously simulating module generate interference signal；Intermediate-freuqncy signal synthesizer will synthesize disturbed signal in the interference signal injection target intermediate-freuqncy signal of generation, be sent into IF signal processing module to be measured；The control command of host computer is communicated to other modules, and test data is sent to host computer by embedded real-time control module；Host computer interactive module, input system simulation parameter is simultaneously sent to control module, while analyzing test data.The diversified signal interference mode of analog of the present invention, while analog narrowband aims at formula and broadband barrage jamming signal, the detector of the continuous wave frequency system suitable for each mode of frequency regulation of each frequency range.
Description
Technical field
The present invention relates to system rejection to disturbance technical field of performance test, especially a kind of continuous wave frequency detection resists active dry
Disturb IF signal processing Performance Test System.
Background technique
With the increasingly raising of modern perturbation technique, stern challenge is proposed to the performance of radio detector.Continuously
Wave FM system is of great significance as a kind of type photodetector being widely adopted, the research of interference free performance.And it is another
On the one hand, due to when continuous wave frequency system has the characteristics that big wide bandwidth, especially millimeter wave frequency band, effective bandwidth it is reachable
Several hundred megahertzs or more, the difficulty to its interference simulation research in kind is also increased while improving itself interference free performance.Beauty
Forth generation " shortstop " jammer working frequency of state's latest development has reached 40GHz, that is, works in the detection of millimere-wave band
Device will also face disturbed threat, therefore the research ever more important of associated Anti-Jamming Technique.And IF signal processing
The nucleus module of target recognition and tracking function is realized as detector, can be carried out test analysis to its anti-interference has very
Important meaning.
In the prior art, application No. is 201621015947.0 Chinese utility model patents to disclose one kind for simulating
The outboard active of marine actual combat complex electromagnetic environment interferes radio frequency source, its analog generates a variety of interference signals, but covers frequency
Section only has 8GHz~18GHz, and applicable radar signal form can not be applied to millimere-wave band mainly in pulse regime
Continuous wave frequency system detector.Application No. is 201610607551.3 Chinese utility model patents to disclose a kind of data
The active interference dynamic analog of Transmission system and interference antagonism test macro, the interference signal of generation is injected useful letter by it
It is received again after number sending and carries out data monitoring analysis to assessment system anti-interference ability, though its covering is not referred in application content
Frequency range, but which are mainly applied to communication systems, can not be suitable for detection system.
Summary of the invention
The purpose of the present invention is to provide a kind of continuous wave frequencies to detect the performance test of active jamming rejection IF signal processing
System avoids generating high-power signal in millimere-wave band, to be suitable for the continuous wave frequency system of each mode of frequency regulation of each frequency range
Detector.
The technical solution for realizing the aim of the invention is as follows: at a kind of continuous wave frequency detection active jamming rejection intermediate-freuqncy signal
Performance Test System is managed, including continuous wave frequency detector front end module, active interference signal and front end modulated signal synchronize
Analog module, intermediate-freuqncy signal synthesizer, embedded real-time control module, host computer interactive module, in which:
Continuous wave frequency detector front end module receives echo for emitting continuous wave frequency detectable signal, under
Target intermediate-freuqncy signal is exported after mixing；
Active interference signal and front end modulated signal synchronously simulating module are for generating a variety of active cheating formulas and active
Pressing type interference signal, the control modulator generation modulated signal synchronous with DDS when simulating pressing type interference；
In the interference signal injection detector echo-signal that intermediate-freuqncy signal synthesizer generates simulation, disturbed signal is synthesized
It is sent into IF signal processing module to be measured；
Embedded real-time control module and host computer interactive module real-time, interactive, it is real according to the instruction of host computer interactive module
When control other modules with the interference signal of analog simulation different parameters system, and by IF signal processing module to be measured
Test data is sent to host computer interactive module；
Host computer interactive module is for input system simulation parameter and is sent to control module, while the test to receiving
Data carry out anti-jamming Performance Analysis.
Further, the continuous wave frequency detector front end module includes dual-mode antenna, circulator, frequency mixer, VCO；
Modulator in the input interface and active interference signal and front end modulated signal synchronously simulating module of VCO modulated signal is provided
It is connected, the output interface for providing intermediate-freuqncy signal is connected with signal synthesizer；The continuous wave frequency detector front end module
Working frequency range is unlimited, and frequency modulated mode is unlimited.
Further, the active interference signal and front end modulated signal synchronously simulating module include modulator, directly
Frequency synthesizer, clock synchronizer controller, analog multiplier, power amplifier, bandpass filter, times frequency module, high-speed digital-analog
Converter and interference signal path selection switch.
Further, the clock synchronizer controller receives the instruction of embedded real-time control module, and control modulator is raw
Continuous wave frequency detector front end module is sent at corresponding modulated signal；And when simulating pressing type interference, synchronously control
Direct synthesizer generates corresponding modulated swept-frequency signal and is sent into analog multiplier with simulaed interference signal and detector
Emit the process of signal phase separation.
Further, the direct synthesizer directly simulates and generates range gate deception formula interference intermediate-freuqncy signal, speed is taken advantage of
Deceive formula interference intermediate-freuqncy signal and distance-velocity joint Deceiving interference intermediate-freuqncy signal；When simulation generates pressing type interference, directly
Frequency synthesizer is connect to generate and the consistent swept-frequency signal of modulator parameter according to the control instruction of clock synchronization module is synchronous.
Further, high-speed A/D converter output white Gaussian noise letter under the control of embedded real-time control module
Number, analog multiplier is sent into after frequency module again, bandpass filter, power amplifier.
Further, the embedded real-time control module real-time control times frequency module, bandpass filter and power amplification
Device is to realize the pressing type interference signal of different jamming bandwidth and jamming power.
Further, the analog multiplier is used to interfere noise pixels detection pressing type or noise FM pressing type interferes,
Be modulated in the swept-frequency signal of direct synthesizer generation, with simulate interference signal in practice enter after detector receiver with
The process of local oscillation signal mixing.
Further, the interference signal path selection switch is used to select the interference type of injection intermediate-freuqncy signal, interference
Type is the pressing type interference for the Deceiving interference intermediate-freuqncy signal either analog multiplier output that direct synthesizer generates
Intermediate-freuqncy signal.
Compared with prior art, the present invention its remarkable advantage is: (1) the diversified signal interference mode of analog, packet
Include noise pixels detection pressing type interference, noise FM formula pressing type interference, range gate deception formula interference, velocity gate deception formula interference and away from
From-velocity joint Deceiving interference, while it can realize that narrowband aims at formula and broadband by the emulation coefficient of control pressing type interference
Barrage jamming signal；(2) the pouring-in technology of intermediate frequency is used, by keeping away in external synchronously simulating detector front end modulated signal
Exempt to generate the difficulties of high-power signal in millimere-wave band, the continuous wave frequency system suitable for each mode of frequency regulation of each frequency range
Detector.
Detailed description of the invention
Fig. 1 is the schematic block that continuous wave frequency of the present invention detects active jamming rejection IF signal processing Performance Test System
Figure.
Fig. 2 is that clock is synchronous in the present invention, modulator and direct synthesizer are when simulating pressing type interference signal
A kind of output signal schematic diagram.
Specific embodiment
Continuous wave frequency of the present invention detects active jamming rejection IF signal processing Performance Test System, continuous fully considering
On the basis of wave frequency modulation detector working principle, propose to use intermediate frequency injected simulation technology, by external synchronously simulating
Detector front end modulated signal avoids and generates the difficulties of high-power signal in millimere-wave band, to be suitable for each frequency range
The continuous wave frequency system detector of each mode of frequency regulation.
In conjunction with Fig. 1, continuous wave frequency of the present invention detects active jamming rejection IF signal processing Performance Test System, including even
Continuous wave frequency modulation detector front end module 1, active interference signal and front end modulated signal synchronously simulating module 6, intermediate-freuqncy signal are closed
It grows up to be a useful person 16, embedded real-time control module 17, host computer interactive module 18, in which:
Continuous wave frequency detector front end module 1 receives echo for emitting continuous wave frequency detectable signal, under
Target intermediate-freuqncy signal is exported after mixing；
Active interference signal and front end modulated signal synchronously simulating module 6 are for generating a variety of active cheating formulas and active
Pressing type interference signal, the control modulator generation modulated signal synchronous with DDS when simulating pressing type interference；
In the interference signal injection detector echo-signal that intermediate-freuqncy signal synthesizer 16 generates simulation, disturbed letter is synthesized
Number it is sent into IF signal processing module to be measured；
Embedded real-time control module 17 and 18 real-time, interactive of host computer interactive module, according to host computer interactive module 18
Instruct other modules of real-time control with the interference signal of analog simulation different parameters system, and by IF signal processing to be measured
The test data of module is sent to host computer interactive module 18；
Host computer interactive module 18 is for input system simulation parameter and is sent to control module, while the examination to receiving
It tests data and carries out anti-jamming Performance Analysis.
As a kind of specific example, the continuous wave frequency detector front end module 1 include dual-mode antenna 2, circulator 3,
Frequency mixer 4, VCO5；The input interface and active interference signal and front end modulated signal synchronously simulating of VCO modulated signal are provided
Modulator 7 in module is connected, and the output interface for providing intermediate-freuqncy signal is connected with signal synthesizer 16；The continuous wave frequency
The working frequency range of detector front end module 1 is unlimited, and frequency modulated mode is unlimited.
As a kind of specific example, the active interference signal and front end modulated signal synchronously simulating module 6 include adjusting
Device 7 processed, direct synthesizer 8, clock synchronizer controller 9, analog multiplier 10, power amplifier 11, bandpass filter 12,
Times frequency module 13, high-speed A/D converter 14 and interference signal path selection switch 15.
As a kind of specific example, the clock synchronizer controller 9 receives the instruction of embedded real-time control module 17, control
Modulator 7 processed generates corresponding modulated signal and is sent into continuous wave frequency detector front end module 1；And in simulation pressing type interference
When, it is dry to simulate that synchronously control direct synthesizer 8 generates corresponding modulated swept-frequency signal feeding analog multiplier 10
Disturb the process of signal and detector transmitting signal phase separation.
As a kind of specific example, the direct synthesizer 8, which is directly simulated, generates range gate deception formula interference intermediate frequency letter
Number, velocity gate deception formula interference intermediate-freuqncy signal and distance-velocity joint Deceiving interference intermediate-freuqncy signal；Pressing type is generated in simulation
When interference, direct synthesizer 8 is consistent with 7 parameter of modulator according to the synchronous generation of the control instruction of clock synchronization module 9
Swept-frequency signal.
As a kind of specific example, the high-speed A/D converter 14 exports under the control of embedded real-time control module 17
White Gaussian noise signal is sent into analog multiplier 10 after frequency module 13 again, bandpass filter 12, power amplifier 11.
As a kind of specific example, the embedded 17 real-time control times frequency module 13 of real-time control module, bandpass filtering
Device 12 and power amplifier 11 are to realize the pressing type interference signal of different jamming bandwidth and jamming power.
As a kind of specific example, the analog multiplier 10 is used to interfere noise pixels detection pressing type or noise FM pressure
Standard interference, is modulated in the swept-frequency signal of the generation of direct synthesizer 8, enters detector to simulate interference signal in practice
The process being mixed after receiver with local oscillation signal.
As a kind of specific example, the interference signal path selection switch 15 is used to select the interference of injection intermediate-freuqncy signal
Type, interference type are that the Deceiving interference intermediate-freuqncy signal either analog multiplier 10 that direct synthesizer 8 generates exports
Pressing type interfere intermediate-freuqncy signal.
Exemplary embodiments of the present invention are described in detail with reference to the accompanying drawings.
Embodiment 1
Continuous wave frequency shown in FIG. 1 detects active jamming rejection IF signal processing Performance Test System, continuous wave frequency
It is detector front end module 1, active interference signal and front end modulated signal synchronously simulating module 6, intermediate-freuqncy signal synthesizer 16, embedding
Enter formula real-time control module 17, host computer interactive module 18.
Continuous wave frequency detector front end module includes dual-mode antenna 2, circulator 3, frequency mixer 4, VCO5.VCO tune is provided
The input interface of signal processed is connected with modulator 7, and the output interface for providing intermediate-freuqncy signal is connected with intermediate-freuqncy signal synthesizer 16.
Continuous wave frequency detector front end module works in 8mm wave band, using triangle-wave frequency modulation mode.
Active interference signal and front end modulated signal synchronously simulating module 6 include modulator 7, direct synthesizer 8,
Clock synchronizer controller 9, analog multiplier 10, power amplifier 11, bandpass filter 12, times frequency module 13, high-speed digital-analog turn
Parallel operation 14 and interference signal path selection switch 15.
Clock synchronization control module receives the instruction of embedded real-time control module 17, and control modulator generates corresponding adjust
Signal processed is sent into continuous wave frequency detector front end module.When simulating pressing type interference, synchronously control frequency synthesizer 8 is raw
At corresponding modulated swept-frequency signal, analog multiplier 10 is sent into simulaed interference signal and detector and emits signal phase separation
Process, the output waveform diagram of each module is as shown in Figure 2.In the interference of simulated deception formula, modulator directly exports modulation
To continuous wave frequency detector front end module, direct synthesizer generates then directly simulation and generates the interference of range gate deception formula signal
Intermediate-freuqncy signal, velocity gate deception formula interference intermediate-freuqncy signal and distance-velocity joint Deceiving interference intermediate-freuqncy signal.
High-speed A/D converter 14 exports white Gaussian noise signal under the control of embedded real-time control module 17, through frequency multiplication
Analog multiplier 10 is sent into after module 13, bandpass filter 12, power amplifier 11.The free transmission range of Clock Multiplier Factor, filter
And power amplification multiple can be by embedded 17 real-time control of real-time control module, so as to realize that narrowband aims at respectively
The pressing type interference of formula, broadband block type.
Analog multiplier 10 interferes noise pixels detection pressing type or the interference of noise FM pressing type is modulated to direct frequency and closes
It grows up to be a useful person in the swept-frequency signal of generation, enters the mistake being mixed after detector receiver with local oscillation signal to simulate interference signal in practice
Journey.By switching interference signal path selection switch 15, the interference type of selection injection intermediate-freuqncy signal, directly by frequency synthesizer
The pressing type of the Deceiving interference intermediate-freuqncy signal of generation either analog multiplier output interferes intermediate-freuqncy signal.
Intermediate-freuqncy signal synthesizer 16 is sent into the middle frequency interference signal injection detector target echo signal of above-mentioned generation
IF signal processing module to be measured.
Embedded real-time control module 17 and 18 real-time, interactive of host computer, according to each mould of instruction real-time control of host computer
Block is passed the test data of IF signal processing module to be measured with the interference signal of analog simulation different parameters system in real time
Give host computer.Host computer interactive module 18 is by the active interference simulation system software of carrying, it can be achieved that human-computer interaction, setting
System emulation parameter, while system rejection to disturbance performance evaluation is carried out to test data.
To sum up, the diversified signal interference mode of analog of the present invention, while analog narrowband aims at formula and broadband obstruction
Formula interference signal, the detector of the continuous wave frequency system suitable for each mode of frequency regulation of each frequency range.
Claims (9)
1. a kind of continuous wave frequency detects active jamming rejection IF signal processing Performance Test System, it is characterised in that: including even
Continuous wave frequency modulation detector front end module (1), active interference signal and front end modulated signal synchronously simulating module (6), intermediate frequency letter
Number synthesizer (16), embedded real-time control module (17), host computer interactive module (18), in which:
Continuous wave frequency detector front end module (1) receives echo for emitting continuous wave frequency detectable signal, through lower mixed
Target intermediate-freuqncy signal is exported after frequency；
Active interference signal and front end modulated signal synchronously simulating module (6) are for generating a variety of active cheating formulas and active pressure
Standard interference signal, the control modulator generation modulated signal synchronous with DDS when simulating pressing type interference；
In the interference signal injection detector echo-signal that intermediate-freuqncy signal synthesizer (16) generates simulation, disturbed signal is synthesized
It is sent into IF signal processing module to be measured；
Embedded real-time control module (17) and host computer interactive module (18) real-time, interactive, according to host computer interactive module (18)
Instruction real-time control other modules with the interference signal of analog simulation different parameters system, and will be at intermediate-freuqncy signal to be measured
The test data of reason module is sent to host computer interactive module (18)；
Host computer interactive module (18) is for input system simulation parameter and is sent to control module, while the test to receiving
Data carry out anti-jamming Performance Analysis.
2. continuous wave frequency according to claim 1 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: the continuous wave frequency detector front end module (1) include dual-mode antenna (2), circulator (3), frequency mixer (4),
VCO(5)；It provides in the input interface and active interference signal and front end modulated signal synchronously simulating module of VCO modulated signal
Modulator (7) be connected, the output interface for providing intermediate-freuqncy signal is connected with signal synthesizer (16)；The continuous wave frequency is visited
The working frequency range for surveying device front-end module (1) is unlimited, and frequency modulated mode is unlimited.
3. continuous wave frequency according to claim 1 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: the active interference signal and front end modulated signal synchronously simulating module (6) include modulator (7), directly frequency
Rate synthesizer (8), clock synchronizer controller (9), analog multiplier (10), power amplifier (11), bandpass filter (12), times
Frequency module (13), high-speed A/D converter (14) and interference signal path selection switch (15).
4. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: the clock synchronizer controller (9) receives the instruction of embedded real-time control module (17), controls modulator (7)
It generates corresponding modulated signal and is sent into continuous wave frequency detector front end module (1)；And it is synchronous when simulating pressing type interference
It controls direct synthesizer (8) and generates corresponding modulated swept-frequency signal feeding analog multiplier (10) to simulate interference letter
Number with detector transmitting signal phase separation process.
5. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: it is dry that the direct synthesizer (8) directly simulation generates range gate deception formula interference intermediate-freuqncy signal, velocity gate deception formula
Disturb intermediate-freuqncy signal and distance-velocity joint Deceiving interference intermediate-freuqncy signal；When simulation generates pressing type interference, direct frequency
Synthesizer (8) generates and the consistent swept-frequency signal of modulator (7) parameter according to the control instruction of clock synchronization module (9) is synchronous.
6. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
It is characterized in that: the high-speed A/D converter (14) output white Gaussian noise letter in the case where embedded real-time control module (17) control
Number, analog multiplier (10) are sent into after frequency module again (13), bandpass filter (12), power amplifier (11).
7. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
It is characterized in that: embedded real-time control module (17) the real-time control times frequency module (13), bandpass filter (12) and power
Amplifier (11) is to realize the pressing type interference signal of different jamming bandwidth and jamming power.
8. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: the analog multiplier (10) is used to interfere noise pixels detection pressing type or noise FM pressing type interferes, modulation
In the swept-frequency signal generated to direct synthesizer (8), with simulate interference signal in practice enter after detector receiver with
The process of local oscillation signal mixing.
9. continuous wave frequency according to claim 3 detects active jamming rejection IF signal processing Performance Test System,
Be characterized in that: the interference signal path selection switch (15) is used to select the interference type of injection intermediate-freuqncy signal, interference type
The pressing type exported for the Deceiving interference intermediate-freuqncy signal either analog multiplier (10) that direct synthesizer (8) generate is dry
Disturb intermediate-freuqncy signal.
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