CN103312358B - Respond wireless interference signal generator and method thereof - Google Patents
Respond wireless interference signal generator and method thereof Download PDFInfo
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- CN103312358B CN103312358B CN201310192015.8A CN201310192015A CN103312358B CN 103312358 B CN103312358 B CN 103312358B CN 201310192015 A CN201310192015 A CN 201310192015A CN 103312358 B CN103312358 B CN 103312358B
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Abstract
The invention discloses a respond wireless interference signal generator and a method thereof. According to the device, a PDA (personal digital assistant) connected with a DSP (digital signal processing) controller is connected with a programmable pulse time delay circuit, a frequency synthesizer and a DDS (direct digital synthesizer) respectively; the frequency synthesizer outputs a local oscillator signal to the DDS and a signal receiving circuit; a time delay circuit is connected with the control end of a DFRM (digital radio frequency memory) of which the input end is connected with a receiving circuit and an antenna; the output end of the DFRM is connected with an IF (intermediate frequency) mixer connected with a clutter generator by a numerical control attenuator; the output end of the IF mixer is connected with a plurality of signal output circuits by a power distributor; and each signal output circuit is also connected with the DDS, and the tail end of each path of output circuit outputs a modulated simulation target signal through the antenna. The respond wireless interference signal generator and the method thereof can perform programming process according to an aerial target motion rule, performs deception or checking on radio positioning equipment by the directed radiation of received same frequency and signal modes, and are suitable for various kinds of radio positioning equipment.
Description
Technical field
The present invention relates to application of electronic technology, specifically a kind of response formula wireless interference signal generation device and method thereof.
Background technology
At present, mode for radio fixing aid(s) signal imitation mainly extracts radio-frequency information with wired mode from radio fixing aid(s) main frame, moving target element is added by simulator, antenna is passed through closely to aerial radiation after power amplification, radio fixing aid(s) receives signal and carries out analyzing and testing, tests to radio fixing aid(s) performance with this.This pattern is only applicable to the radio fixing aid(s) with Doppler's detection perform, and by wired restriction, operating distance is limited, and range of application is very little.This mode and analog signal object have dependence, can only carry out comprehensive detection as signal source to electronic equipments such as radio fixing aid(s)s, independently can not produce answer signal for carrying out cheating interference to radio fixing aid(s).
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of response formula wireless interference signal generation device and method thereof, stores transmitting of radio fixing aid(s), according to after self-programming with response mode feedback radio fixing aid(s).This device not only can carry out comprehensive detection to electronic equipments such as radiolocators, can also implement deception and interference, and operating distance is farther to the radio fixing aid(s) of various modes.
A kind of response formula wireless interference signal generation device of the present invention, it mainly comprises PDA(Personal Digital Assistant, personal digital assistant), DSP (Digital Signal Processing, Digital Signal Processing) controller, DRFM(digital radiofrequency memory), frequency synthesizer, DDS(Direct Digital Synthesizer, Direct Digital Synthesizer) and antenna, described PDA connects dsp controller, dsp controller connects programmable pulse delay circuit respectively through data buffer storage switching controller, frequency synthesizer and DDS, frequency synthesizer exports local oscillation signal to DDS and signal receiving circuit simultaneously, programmable pulse delay circuit is connected with the control end of DRFM again, the input connection signal receiving circuit of DRFM, and signal receiving circuit top connects antenna, the output of DRFM connects IF frequency mixer, and IF frequency mixer also connects clutter generator through numerical-control attenuator, IF mixer output connects some roads signal output apparatus through power divider, and each road signal output apparatus also connects DDS simultaneously, and each road signal output apparatus end exports the simulated target signal after a modulation through antenna.
Signal receiving circuit comprises: the downlink radio frequency switch connected successively by antenna, limiting amplifier, under turn frequency mixer to DRFM, under turn frequency mixer and be also connected with frequency synthesizer.
Signal output apparatus comprises: by DDS connect successively on turn frequency mixer, power amplifier, upstream radio-frequency switch, numerical-control attenuator to antenna.
In addition, present invention also offers a kind of response formula wireless interference signal production method, it comprises the following steps: the radio fixing aid(s) pulse signal received by reception antenna, through limiting amplifier amplitude limit and by radio-frequency (RF) switch control inputs, the intermediate-freuqncy signal obtained after the radio-frequency (RF) local oscillator signal mixing that frequency mixer and frequency synthesizer are sent here, stores in the address that DRFM determines; The programming control signal containing various information sent here by PDA is after DSP process, a control command is exported by data buffer storage translation interface, go to extract intermediate-freuqncy signal in DRFM according to the delay time that simulated target movement locus calculates, this signal is in intermediate frequency mixer, the interfere information mixing sent here with clutter generator, produces new intermediate-freuqncy signal.Frequency synthesizer produces the standard high-frequency reference signal of high stability, for mixing coherent reference signal and the f of upper and lower turn of frequency
1(local oscillator) signal; DDS produces containing speed doppler frequency f under PDA controls
1 ±f
dcoherent signal, this signal finally mixes with intermediate-freuqncy signal, and upper turning is reduced into radio fixing aid(s) radiofrequency signal frequently, goes out after power amplification through aerial radiation; The signal of aerial radiation is except the first-harmonic of the radio fixing aid(s) by time delay, and also containing velocity information and interfere information, the information that radio fixing aid(s) receives is exactly a simulated target signal having the motion of jamming pattern.
The present invention adopts DRFM(radio-frequency (RF) digital memory technology), utilize wireless receiving and digital storage technique, under the control of the computer, programmed process is carried out by aerial target mechanics, then with identical frequency and signal form directed radiation to aerial, radio fixing aid(s) is cheated or checks.The present invention is applicable to different types of radio fixing aid(s).In addition, the present invention is also provided with and injects Doppler frequency and compacting interference semiotic function to received signal, can implement deception and interference to the radio fixing aid(s) of multiple formula.This device, in conjunction with high-power output equipment, can play usefulness, have certain actual combat meaning on comparatively remote.
Accompanying drawing explanation
Fig. 1 is module frame chart of the present invention.
Embodiment
As Fig. 1, response formula wireless interference signal generation device of the present invention, mainly comprise PDA, dsp controller, DRFM, frequency synthesizer, DDS and antenna, described PDA connects dsp controller, dsp controller connects programmable pulse delay circuit, frequency synthesizer and DDS respectively through data buffer storage switching controller, and frequency synthesizer exports local oscillation signal to DDS and signal receiving circuit simultaneously; Programmable pulse delay circuit is connected with the control end of DRFM again, the input connection signal receiving circuit of DRFM, and signal receiving circuit top connects antenna; The output of DRFM connects IF frequency mixer, and IF frequency mixer also connects clutter generator through numerical-control attenuator; IF mixer output connects two paths of signals output circuit through power divider, and each road signal output apparatus also connects DDS simultaneously, and each road signal output apparatus end exports the simulated target signal after a modulation through antenna.
Wherein, signal receiving circuit comprises: the downlink radio frequency switch connected successively by antenna, limiting amplifier, under turn frequency mixer to DRFM, under turn frequency mixer and be also connected with frequency synthesizer.Signal output apparatus comprises: by DDS connect successively on turn frequency mixer, power amplifier, upstream radio-frequency switch, numerical-control attenuator to antenna.
Below formation of the present invention is described in detail.
DRFM and high stability local vibration source are key problems-solving of the present invention.Along with the development of chip technology, the quality of radio frequency storage chip has very much progress, and this is just for radio frequency storage provides guarantee.This programme uses same local oscillation signal source in reception and two stages of transmitting, and the stability of its signal is crucial, uses high-level crystal oscillator and frequency synthesis technique, solves this problem preferably.
dRFM(digital radiofrequency memory)
The intermediate-freuqncy signal of radio fixing aid(s) radiofrequency signal after conversion being carried out A/D conversion formation digital quantity is stored in assigned address, under Video Controller effect, again this signal is taken out and carry out D/A and be for conversion into analog quantity, deliver to and turn frequency circuit and be reduced into radio fixing aid(s) radiofrequency signal.DRFM plays a part the storage of radio fixing aid(s) signal high-fidelity, time delay in systems in which, is the key component of system.Digital RF memory circuit is made up of local oscillator, lower turn of frequency device, DRFM memory cell, the upper frequency device etc. that turns.The present invention adds intermediate frequency mixer after DRFM, is in order to low frequency spur interference signal is injected wherein.
Digital radiofrequency memory (DRFM) is the chief component of active radio electricity positioning equipment jammer in Modern Electronic Countermeasure system, after accurately being copied by the radio fixing aid(s) received signal, return this radio fixing aid(s) system again, obscure this system with this.Apply the feature accurately copying radio fixing aid(s) signal of DRFM just, DRFM technology is widely used in the development of various radio fixing aid(s) echo signal generator, radio fixing aid(s) comprehensive tester and all kinds of general signal generator.Its basic functional principle: first input radio frequency signal is down-converted to intermediate-freuqncy signal, becomes digital signal after A/D conversion, in write high-speed memory.When this signal retransmitted by needs, read this digital signal under control of the controller and be transformed to analog signal by D/A.Then by same up-conversion of bestirring oneself, obtain radio frequency output signal, complete the storage forwarding to defeated people's signal.
f
d
analog circuit
According to the programming of PDA to the simulated target course line speed of a ship or plane, convert target velocity to Doppler frequency, for the motion state of simulated target.By DDS and upper turn frequently device etc. form.DDS produces containing f under PDA controls
dthe coherent signal of (speed doppler frequency), this signal finally mixes with intermediate-freuqncy signal, and upper turning is reduced into radio fixing aid(s) radiofrequency signal frequently, goes out after power amplification through aerial radiation.The signal of aerial radiation contains velocity information, and the information that radio fixing aid(s) receives is exactly the simulated target signal of a motion.
radio-frequency power unit
Each exports branch road and all needs to set up power amplification unit, and its power gain, depending on user demand, if apply to long-range, needs high-power output amplifier, generally applies within radio fixing aid(s) detection power can be controlled in 1W.
antenna
For parabola directional antenna, bore is determined according to demand.Available 60mm bore is detected for radio fixing aid(s).
principle summary
The radio fixing aid(s) pulse signal received by reception antenna, through limiting amplifier amplitude limit and by radio-frequency (RF) switch control inputs, the intermediate-freuqncy signal obtained after the radio-frequency (RF) local oscillator signal mixing that frequency mixer and frequency synthesizer (local oscillator) are sent here, at DRFM(digital radiofrequency memory) store in the address determined.The programming control signal containing various information sent here by PDA is after DSP process, a control command is exported by data buffer storage translation interface, go to extract intermediate-freuqncy signal in DRFM according to the delay time that simulated target movement locus calculates, this signal is in intermediate frequency mixer, the interfere information mixing sent here with clutter generator, produces new intermediate-freuqncy signal.Frequency synthesizer (local oscillator) produces the standard high-frequency reference signal (the unique local oscillation signal of full machine) of high stability, for mixing coherent reference signal and the f of upper and lower turn of frequency
1signal.DDS produces containing f under PDA controls
1 ±f
dthe coherent signal of (speed doppler frequency), this signal finally mixes with intermediate-freuqncy signal, and upper turning is reduced into radio fixing aid(s) radiofrequency signal frequently, goes out after power amplification through aerial radiation.The signal of aerial radiation is except the first-harmonic of the radio fixing aid(s) by time delay, and also containing velocity information and interfere information, the information that radio fixing aid(s) receives is exactly a simulated target signal having the motion of jamming pattern.
The present invention has three zones: one is the speed of skimulated motion target, for inspection or deception Doppler range rate measurement and fire control radio fixing aid(s); Two is the friction speed targets simulating many batches of course lines, returns radio fixing aid(s) receiving system with radio fixing aid(s) self-information pattern; Three is add certain Weak Signals in Clutter Interference, can use as detection or compacting interference.The present invention, except applying to electronic countermeasures, also can be used as signal source and detects plurality of devices such as radio fixing aid(s)s, is all exercisable integronics of the army and the people.
The present invention for the radio fixing aid(s) transmitted, can adopt wireless mode receive and work out course line and speed, launches, have great duplicity with radio fixing aid(s) original signal pattern to it.Use this equipment can disturb operational radio positioning equipment, also can be used as signal source and comprehensive detection is carried out to electronic equipments such as radio fixing aid(s)s, there is wide utilization prospect.This equipment, for concrete utilization object, can be designed to portable, also can be designed to main equipment, carries out Disturbance and deceit to remote object.Computer programming and easy to operation.At present, device required for the present invention is all with maturation.It is identical with radio fixing aid(s) on the impact of environment, portable then because radio-frequency power is minimum, on environment substantially without impact.
Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. a response formula wireless interference signal generation device, it is characterized in that, mainly comprise PDA, dsp controller, DRFM, frequency synthesizer, DDS and antenna, described PDA connects dsp controller, dsp controller connects programmable pulse delay circuit, frequency synthesizer and DDS respectively through data buffer storage switching controller, and frequency synthesizer exports local oscillation signal to DDS and signal receiving circuit simultaneously; Programmable pulse delay circuit is connected with the control end of DRFM again, the input connection signal receiving circuit of DRFM, and signal receiving circuit top connects antenna; The output of DRFM connects IF frequency mixer, and IF frequency mixer also connects clutter generator through numerical-control attenuator; IF mixer output connects some roads signal output apparatus through power divider, and each road signal output apparatus also connects DDS simultaneously, and each road signal output apparatus end exports the simulated target signal after a modulation through antenna;
Above-mentioned signal receiving circuit comprises: the downlink radio frequency switch connected successively by antenna, limiting amplifier, under turn frequency mixer to DRFM, under turn frequency mixer and be also connected with frequency synthesizer;
Above-mentioned signal output apparatus comprises: by DDS connect successively on turn frequency mixer, power amplifier, upstream radio-frequency switch, numerical-control attenuator to antenna.
2. a response formula wireless interference signal production method, it is characterized in that comprising the following steps: the radio fixing aid(s) pulse signal received by reception antenna, through limiting amplifier amplitude limit and by radio-frequency (RF) switch control inputs, the intermediate-freuqncy signal obtained after the radio-frequency (RF) local oscillator signal mixing that frequency mixer and frequency synthesizer are sent here, stores in the address that DRFM determines; The programming control signal containing various information sent here by PDA is after DSP process, a control command is exported by data buffer storage translation interface, go to extract digital intermediate frequency signal in DRFM according to the delay time that simulated target movement locus calculates, this signal through D/A conversion after in intermediate frequency mixer, the low-frequency disturbance information mixing sent here with clutter generator, produces new intermediate-freuqncy signal; Frequency synthesizer produces the standard high-frequency reference signal of high stability, for mixing coherent reference signal and the f of upper and lower turn of frequency
1signal; DDS produces containing speed doppler frequency f under PDA controls
1 ±f
dcoherent signal, this signal finally mixes with intermediate-freuqncy signal, and upper turning is reduced into radio fixing aid(s) radiofrequency signal frequently, goes out after power amplification through aerial radiation; The signal of aerial radiation is except the first-harmonic of the radio fixing aid(s) by time delay, and also containing velocity information and interfere information, the information that radio fixing aid(s) receives is exactly a simulated target signal having the motion of jamming pattern.
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| CN104849703A (en) * | 2015-05-25 | 2015-08-19 | 扬州宇安电子科技有限公司 | Internal and external field dual-purpose portable interference simulation device |
| CN107666363A (en) * | 2017-09-26 | 2018-02-06 | 中国人民解放军63888部队 | A kind of OFDM wireless communication signals interference method |
| CN108011646B (en) * | 2017-12-18 | 2023-09-19 | 南京新频点电子科技有限公司 | Frequency self-adaptive interference suppression device |
| CN110927683B (en) * | 2019-10-17 | 2022-02-22 | 南京国立电子科技有限公司 | Interference signal generating device and method thereof |
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| CN101038334A (en) * | 2007-04-13 | 2007-09-19 | 北京工业大学 | Doppler wireless direction-finding system |
| KR101049095B1 (en) * | 2009-11-23 | 2011-07-15 | 국방과학연구소 | An apparatus and method for canceling jamming signals, a computer-readable medium recording a program for performing the jamming signal, and a jamming signal generating system using the interference canceling device for jamming signals |
| CN102307052B (en) * | 2011-09-23 | 2013-10-16 | 长春卓尔信息安全产业股份有限公司 | Intelligent fixed-frequency interferometer |
| CN102983877A (en) * | 2012-11-29 | 2013-03-20 | 南京璇星科技发展有限公司 | Missile-borne coherent multi-station-triggering work pulse transponder |
| CN203251289U (en) * | 2013-05-22 | 2013-10-23 | 廖华芬 | A responsive wireless interference signal generating apparatus |
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Effective date of registration: 20170120 Address after: 210000 Jiangsu city of Nanjing province in Baixia District Agricultural Road No. 3, room 1412 Patentee after: Nanjing Top-Link Radio Technology Co., Ltd. Address before: Yudaojie Nanjing 210000 Jiangsu province No. 30 building 11 room 602 Patentee before: Liao Huafen Patentee before: Han Fei |
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Effective date of registration: 20170527 Address after: Yudaojie Baixia District of Nanjing City, Jiangsu province 210000 No. 30 building 11 room 602 Co-patentee after: Han Fei Patentee after: Liao Huafen Address before: 210000 Jiangsu city of Nanjing province in Baixia District Agricultural Road No. 3, room 1412 Patentee before: Nanjing Top-Link Radio Technology Co., Ltd. |
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Effective date of registration: 20171207 Address after: 210000, Nanjing, Jiangsu Unicorn science and Technology Innovation Park Road, No. 300 Patentee after: Nanjing new frequency electronic technology Co. Ltd. Address before: Yudaojie Baixia District of Nanjing City, Jiangsu province 210000 No. 30 building 11 room 602 Co-patentee before: Han Fei Patentee before: Liao Huafen |
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Denomination of invention: A responsive wireless interference signal generation device and its method Effective date of registration: 20220124 Granted publication date: 20150204 Pledgee: China Construction Bank Corporation Nanjing Xuanwu sub branch Pledgor: NANJING XINPINDIAN ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: Y2022980000897 |