CN104849703A - Internal and external field dual-purpose portable interference simulation device - Google Patents
Internal and external field dual-purpose portable interference simulation device Download PDFInfo
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- CN104849703A CN104849703A CN201510269700.5A CN201510269700A CN104849703A CN 104849703 A CN104849703 A CN 104849703A CN 201510269700 A CN201510269700 A CN 201510269700A CN 104849703 A CN104849703 A CN 104849703A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- 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
- G01S7/40—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- 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
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
Abstract
The invention discloses an internal and external field dual-purpose portable interference simulation device, comprising a cabinet. The cabinet is internally provided with a signal reception incoming device, a display control unit, an intermediate frequency distribution and signal modulation unit, a frequency synthesizer, an intermediate frequency modulation unit, a radio frequency channel unit, and a signal emission device. The signal reception incoming device, the display control unit, and the frequency synthesizer are connected with the intermediate frequency distribution and signal modulation unit. The intermediate frequency distribution and signal modulation unit is connected with the radio frequency channel unit through the intermediate frequency modulation unit. A radio frequency channel is connected with the signal emission device. The device is simple in integrated structure, convenient in operation, abundant in simulation functions, and easy in carrying. The device can be widely applied in field performance detection and assessment of airborne, shipborne, and vehicle-mounted and other electronic devices, and is suitable for analog simulation tactical drilling of internal and external fields of an army.
Description
Technical field
The invention belongs to electronic warfare investigative technique jamming field, specifically a kind of interior outfield dual-purpose portable interference simulation device.
background of invention
Modern war spreads out to send out already becomes high-tech war, and electronic warfare has developed into the one independently mode of operation, is one of the main battle weapons and combat forces in asymmetric war environment with information deterrent capability.In the development of electronic countermeasure weapon, usually need the interference effect to radar, interference free performance assesses.Owing to there is expending huge and testing muptiple-use demand contradictory of test, extremely urgent to the development of interference simulation simulator.
Domestic at present exist radar interference simulator, the pattern of mimicking jammer jamming performance is comparatively single, the service band scope of simulation is less cannot expand and equipment performance is lower, structure is comparatively complicated, bulky, precision is not high, interference effect is undesirable, and the very high many shortcomings of cost.The existence of these problems, is unfavorable for the training and assessment of army.The development limiting China's Anti-jamming Technology for Radar to a great extent, makes the fight capability of army under complicated electromagnetic interference environment reduce, has widened the gap of China and developed country further, made China be in disadvantageous status in electronic warfare radar electronic warfare.
Summary of the invention
In order to overcome above-mentioned Problems existing, the object of this invention is to provide a kind of interior outfield dual-purpose portable interference simulation device, this device one-piece construction is simple, easy to operate, and analog functuion is enriched, and is easy to carry about with one.The field performance that can be widely used in the electronic equipment such as airborne, carrier-borne, vehicle-mounted detects and assessment, is applicable to the analog simulation skill practice of inside and outside army two.
Object of the present invention is achieved through the following technical solutions:
Outfield dual-purpose portable interference simulation device in a kind of, it is characterized in that: this device comprises cabinet, in cabinet, be provided with Signal reception incidence mount, aobvious control unit, intermediate frequency distribute and signal madulation unit, frequency synthesizer, intermediate frequency Modulation unit, radio-frequency channel unit and sender unit, described Signal reception incidence mount, aobvious control unit all distributes with intermediate frequency with frequency synthesizer and signal madulation unit is connected; Intermediate frequency is distributed and is connected with radio-frequency channel unit by intermediate frequency Modulation unit with signal madulation unit, and radio-frequency channel is connected with sender unit.
In the present invention, indicative control unit comprises PC, keyboard, liquid crystal display and interface, and PC to be distributed with intermediate frequency by High Speed Serial and signal madulation unit is connected, and keyboard, liquid crystal display are connected with the equal PC of interface; Keyboard and liquid crystal display are arranged on cabinet panel.
Frequency synthesizer comprises crystal oscillator, clock distribution circuit, wave filter, harmonic oscillator, power splitter and switch, distribute and the control command of signal madulation unit according to intermediate frequency, harmonic oscillator produces the signal of corresponding frequencies, and the continuous local oscillation signal leached needed for intermediate frequency allocation units, the upper and lower frequency conversion network of intermediate frequency Modulation unit by switch filter, power splitter is directly sent; Another organizes clock signal, the continuous local oscillation signal needed for receiving element and the upper and lower frequency conversion network of radio-frequency channel unit is leached by switch, wave filter, fixing local oscillation signal needed for upper and lower frequency conversion utilizes point of fixity frequency wave filter to leach, and is supplied to intermediate frequency and distributes and signal madulation unit.
Intermediate frequency Modulation unit and the frequency of radio-frequency channel unit to the undesired signal received and frequency synthesizer synthesis carry out Doppler modulation through filtering and amplifying circuit, and carry out the amplitude control of signal by programmable attenuator; Speed-sensitive switch is selected to be sent to compositor, selects output channel to send sender unit after shunt again after having processed through up-conversion switch, and the mode injected by emitting antenna radiation or radio-frequency cable send tested radar.
Intermediate frequency distribute and signal madulation unit comprise controller, FPGA and DRFM bandwidth unit, DRFM bandwidth unit comprise dual port RAM, A D and D A, controller is connected with indicative control unit and FPGA; The DRFM bandwidth unit controlled by FPGA plays central role; Ultra large scale FPGA control dual port RAM store through A D conversion down coversion digital signal, line algorithm of going forward side by side resolves, modulates; And according to user arrange parameter requirements, and then store or through D A carry out digital-to-analogue conversion after launch.
In the present invention, aobvious control unit, intermediate frequency distribute and mutually integrated between signal madulation unit, frequency synthesizer, intermediate frequency Modulation unit and radio-frequency channel unit, are interconnected.Meanwhile, on panel also have self-defined I O mouth, support multiple serial ports, answer sexual demand handled easily for outside.
In the present invention, aobvious control unit is the important component part of portable simulator, which control the operation of simulator, can provide friendly man-machine interface for user.Its function comparatively horn of plenty, mainly comprise: the management of radar database (the data of coming are preserved in undesired signal collection), test combat arrange (according to actual combat, carrying out correlativity adjustment), equipment runs and controls (carrying out optimum configurations and control by the rubber keyboard on Flash panel), equipment state (state that equipment is operationally waited) and test figure display and communicate (experimental data may be displayed on the embedded liquid crystal display on panel) etc.Meanwhile, the built-in industrial level PC be connected with liquid crystal display can external multiple High Speed Serial, can reach the multiplex of external function.This addresses the problem above-mentioned mentioning needs external host computer to cause the trouble being not easy to carry, and reduces of the present inventionly to take volume simultaneously.
Intermediate frequency distributes and signal madulation unit is also core control portions of the present invention.Include interference and resolve control module and compacting interference generation unit.What this unit mainly adopted is digital RF memory module (DRFM) unit that extensive field programmable gate array chip (FPGA) controls, and modulates with the parameter such as carrier frequency, pulsewidth, pulse repetition rate completed the radiofrequency signal received.Adopt wideband digital frequency memory technique, record and preserve radar signal waveform, under the control of industrial computer, complete the time delay to radar target and Deceiving interference signal and Doppler modulation, and the modulation of radar target signature; During for cheating interference signal imitation, can simulated range tow, the signal such as speed tracting, distance-speed sync tow, double point source disturbs, decoy.Simulation compacting undesired signal, comprises arrowband and aims at interference, Sweeping nonlinearity, flicker interference, occlusion interfere, pectinate noise interference.Modulation system has amplitude modulation, frequency modulation and phase modulation.The effect of this unit then mainly solves the shortcomings such as above-mentioned mentioned traditional simulator function singleness, precision be not high.
Frequency synthesizer unit is primarily of compositions such as crystal oscillator, harmonic oscillator, power splitter, amplifier, frequency mixer, microwave switch, control circuits.Its major function is receiving element, intermediate frequency allocation units, intermediate frequency Modulation unit, radio-frequency channel unit provide local oscillation signal needed for upper and lower frequency conversion, and provides required clock reference signal for each unit, makes complete machine clock unified.In Design of Frequency Synthesizer, reference source adopts the 100MHz constant-temperature crystal oscillator (OCXO) of noiseproof feature excellence, and 1kHz phase is made an uproar as-150dBc, and has very high frequency accuracy and frequency stability.100MHz by marker circuit for instantaneous frequency measurement circuit and harmonic oscillator provide clock and pumping signal.Harmonic oscillator produces the comb spectrum at 100MHz interval and the clock signal of 1GHz, leaches the continuous local oscillation signal needed for intermediate frequency allocation units, the upper and lower frequency conversion network of intermediate frequency Modulation unit by switch filter group.1GHz clock signal gives another harmonic oscillator to produce the comb spectrum of interval 1GHz, leach the continuous local oscillation signal needed for receiving element and the upper and lower frequency conversion network of radio-frequency channel unit by switch filter group, the fixing local oscillation signal needed for upper and lower frequency conversion utilizes point of fixity frequency wave filter to leach.
Owing to have employed harmonic oscillator and fixed filters frequency-selecting, frequency synthesizer can realize local oscillator harmonic wave, spuious≤-55dBc, and phase noise-90dBc/Hz@1kHz, the technical indicator of output power >=10dBm, can meet the requirement of the upper and lower frequency conversion of system.Therefore the present invention greatly enhances the shortcoming such as single on the deficiency of conventional simulator on simulate effect and working frequency range.
Intermediate frequency Modulation unit and radio-frequency channel unit form primarily of filter amplification circuit, programmable attenuator, filter amplification circuit, compositor and switch.Comprise two major functions: one is under the control of broadband DRFM unit, the cheating interference signal that broadband DRFM unit exports carries out Doppler modulation, the more paramount intermediate-freuqncy signal of up-conversion carries out amplitude modulation(PAM); Two is under the control of noise generation unit, after the noise baseband signal that compacting interference generation unit exports is converted to high intermediate-freuqncy signal, the amplitude of being carried out noise signal by programmable attenuator is controlled, and realizes flicker noise interference function by High Speed Modulation switch.Signal after having processed, switch (SPDT) selects output channel according to frequency of operation, exports, more can enrich the present invention like this to the various selective of user and actual property with the multi-way contral that this realizes multi-selection.
Cabinet is outer packaging unit of the present invention.Core cell and module are all integrated on inner multilayer circuit board, and compact conformation has also well taken into account heat dissipation problem simultaneously, so have employed drawer structure, aspect is just dismantled and keeped in repair.The design of cabinet and invention then mainly embody the features such as hommization, easy to operate, portability.
The invention has the advantages that: the shifting processing of data being carried out by core control part thus reach distance time delay; The fine frequency step of technology to frequency synthesizer unit that have employed harmonic oscillator and fixed filters frequency-selecting jumps the high precision achieving its simulation.Software and hardware combining, little Utilizing Resource Pattern make jamming signal type more flexible and changeable, also achieve it in the simulation suppressing the multiple interference wave in interference and cheating interference, to improve Anti-jamming Ability for Radar.Dynamic static interference combines, and achieves large storage, high precision.
The present invention is based on digital RF memory module (DRFM), it is a kind of miniradar interference signal generatord of portable anti-adverse environment, the field performance that can be widely used in the various platform clectronic war equipment such as airborne, carrier-borne, vehicle-mounted detects and assessment, soldier's skill practice and training.
accompanying drawing illustrates:
Fig. 1 is that modular unit of the present invention controls schematic diagram.
Fig. 2 is structural representation of the present invention.
Fig. 3 is indicative control unit schematic diagram in the present invention.
Fig. 4 is the core DRFM cell schematics of intermediate frequency distribution and signal madulation unit in the present invention.
Fig. 5 is frequency synthesizer structural principle schematic diagram of the present invention.
Fig. 6 is intermediate frequency Modulation unit of the present invention and radio-frequency channel unit principle flow chart.
Embodiment
Outfield dual-purpose portable interference simulation device in a kind of, see Fig. 1 and Fig. 2, this device comprises cabinet 8, is provided with Signal reception incidence mount 1, aobvious control unit 2, intermediate frequency distribution and signal madulation unit 3, frequency synthesizer 4, intermediate frequency Modulation unit 5, radio-frequency channel unit 6 and sender unit 7 in cabinet 8.Signal reception incidence mount, aobvious control unit all distributes with intermediate frequency with frequency synthesizer and signal madulation unit is connected; Intermediate frequency is distributed and is connected with radio-frequency channel unit by intermediate frequency Modulation unit with signal madulation unit, and radio-frequency channel is connected with sender unit.Cabinet is drawer structure, is inside provided with set of circuits flaggy, receives incidence mount, aobvious control unit, intermediate frequency distributes and signal madulation unit, frequency synthesizer, intermediate frequency Modulation unit, radio-frequency channel unit and sender unit are all integrated on board layer.
The man-machine interface that can be provided by aobvious control unit carries out some correspondence optimum configurations, and the running status of opertaing device, as: on-test, test stopping, single portion time-out, the continuation of single portion etc.
Core cell intermediate frequency distributes and signal madulation unit 3 inputs according to the parameter combat of aobvious control unit 2, Parameter Modulation is carried out to the signal of the reception incidence mount 1 received and by intermediate frequency Modulation unit 5 and radio-frequency channel unit 6, is launched by sender unit 7.
Indicative control unit 2(is shown in Fig. 3), PC 23 sends initial parameter and operation control command by High Speed Serial 27 to intermediate frequency distribution and signal madulation unit 3.After on-test, intermediate frequency distribution and signal madulation unit 3 are according to each signal(-) carrier frequency of initial parameter real-time resolving every portion radar, pulsewidth, the parameters such as pulse repetition rate carry out modulation etc., and (this process then mainly carries out the work such as signal madulation by large-scale F PGA21 control DRFM20 unit, refer to Fig. 4, participate in frequency by frequency synthesizer 4 directly to synthesize), and in real time each pulse is processed, generate the pulse digital data of final controlled frequency compositor 4 and intermediate frequency Modulation unit 5 and radio-frequency channel unit 6, and by pulse arrival time and simulation time true correlation, real-time controlled frequency compositor 4 and intermediate frequency Modulation unit 5 and radio-frequency channel unit 6, finally frequency upconversion 16 is being selected to launch by demand.This process according to different requirements, can produce the undesired signal of different frequency range, has reached the effect that multiple interference simulation signal is launched.
(see figure 2) in practical operation, user can carry out relevant combat setting and parameters input according to the keyboard 24 on the outside cabinet panel of aobvious control unit (see figure 3), panel has other outside self defined interface 26 to facilitate the signal of multiple outside machine to access, interface 26 comprises network interface 28, FLASH hard disk 29, USB30 simultaneously.The parameter of input can be presented on liquid crystal display 25 by inner built-in industrial level PC26, conveniently observes setting.The master controller 22 be connected with PC is arranged on intermediate frequency and distributes and in signal madulation unit 3, master controller 22 guides FPGA11 control DRFM bandwidth unit 20 to carry out the calculating of signal according to parameter and combat demand, analog-modulated (namely disturb and resolve control: resolve control module according to initial combat and situation by interference by this process, carry out combat operation and resolve, the signal received according to Signal reception 1 is via the signal of DRFM low-converter frequency reducing, calculate the distance of jammer relative to radar, determine the time delay value of each cheating interference signal relative to radar transmitted pulse, this parameter only as guinea pig signal arrive jammer produce the reference data of time delay, jammer utilizes the radar transmitted pulse of this equivalent time delay to produce various cheating interference.When simulated range tows and speed tracting disturbs, simulate the technology time delay of this interference that actual interference machine produces, and produce time delay (distance) by interference parameter and Doppler shift is modulated) signal modulated is under control of controller 22, through intermediate frequency Modulation and radio-frequency channel unit 6 selector channel up-conversion 14, send sender unit 7 by amplifying circuit 15 to by signal transmitting 16 to launch, the frequency synthesis of whole process is directly synthesized by frequency synthesizer 4.
Frequency synthesizer 4(is shown in Fig. 5) distribute and the control command of signal madulation unit 3 according to intermediate frequency, harmonic oscillator 41 produces the signal of corresponding frequencies, and the continuous local oscillation signal leached needed for intermediate frequency allocation units, the upper and lower frequency conversion network of intermediate frequency Modulation unit by switch filter 39, power splitter 40 is directly sent.Another organizes clock signal, the continuous local oscillation signal needed for receiving element and the upper and lower frequency conversion network of radio-frequency channel unit is leached by switch 42 wave filter 39, fixing local oscillation signal needed for upper and lower frequency conversion utilizes point of fixity frequency wave filter 39 to leach, and is supplied to intermediate frequency and distributes and signal madulation unit.Intermediate frequency Modulation unit and the frequency of radio-frequency channel unit (see figure 6) to the undesired signal received and frequency synthesizer synthesis carry out Doppler modulation through filtering and amplifying circuit 10 etc., and carry out the amplitude control of signal by programmable attenuator 11.Speed-sensitive switch 12 is selected to be sent to compositor 13, selects output channel 44 after shunt, send sender unit 7 again after having processed through up-conversion 14 switch 42, and the mode injected by emitting antenna radiation or radio-frequency cable send tested radar.
Intermediate frequency distributes and signal madulation unit is shown in Fig. 4, intermediate frequency distributes and signal madulation unit 3 comprises controller 22, FPGA21 and DRFM bandwidth unit 20, DRFM bandwidth unit 20 comprise dual port RAM 33, A D32 and D A34, controller 22 is connected with indicative control unit 2 and FPGA21; The DRFM20 bandwidth unit controlled by FPGA21 serves main central role.Ultra large scale FPGA 21 control dual port RAM 33 store through A D32 conversion down coversion digital signal, line algorithm of going forward side by side resolves, modulates.Then, according to user arrange parameter requirements, and then store or through D A34 carry out digital-to-analogue conversion after launch.
Broadband DRFM unit is mainly according to jamming signal type and the interference parameter of display and control calculating and setting, produce the various cheating interference signals required for test, the cheating interference signal such as comprise decoy, range gate tows, speed gate tows, reaches the object of cheating interference with this.
User can pass through FPGA channel control board, receive the combat parameter from host computer or other communication facilities, the communication management module of FPGA inside is dealt with to the combat parameter received and is distributed to each pulse and describes control word and resolve module, each pulse describes control word and resolves modular concurrent and work alone, pulse describes control word and resolves module and mainly resolve each radar pulse time of arrival, pulse width, pulse carrier frequency and modulation intelligence, pulse height etc., and radar takies a pulse and describes control word and resolve module; Describing control word with several pulses every, to resolve module be one group, the result resolved exported to pulse and describe control word sequential queue module, carries out pulse and describe control word sequential and queue up and pulse missing process; Describing control word sequential queue module with several pulses every is one group, and each pulse describes control word sequential queue module and respective result exported to next stage pulse and describe control word sequential queue module carrying out pulse sequence and queue up and resolve; The result resolved the most at last exports pulse to and describes control word output control module, exports to signal source.
The present invention can be dual-purpose as interior outfield, the bright main analog demand meeting interference simulator: can disturb and compacting interference two kinds of interference types by simulated deception, service band can be expanded, function more powerfulization.
Cheating interference signal imitation: in indicative control unit of the present invention, user is by display and control software, the combats such as systematic parameter, radar parameter, jamming signal type, cheating interference parameter are set, and carry out resolving and generating of initial combat, be issued to interference simultaneously and resolve control module (namely intermediate frequency distributes and signal madulation unit).Control module is resolved according to initial combat and situation by interference, carry out combat operation and resolve, calculate the distance of jammer relative to radar, determine the time delay value of each cheating interference signal relative to radar transmitted pulse, this parameter only as guinea pig signal arrive jammer produce the reference data of time delay, jammer utilizes the radar transmitted pulse of this equivalent time delay to produce various cheating interference.When simulated range tows and speed tracting disturbs, the technology time delay of this interference that actual interference machine produces be simulated, and press interference parameter generation time delay (distance) and Doppler shift modulation.
Compacting interference signal imitation: according to the rf frequency of each radar transmitted pulse measured, the parameters such as pulsewidth, institute's measured frequency value is sent into interference and resolve control module and compacting interference generation unit (intermediate frequency distributes and signal madulation unit), control module (intermediate frequency distributes and signal madulation unit) is resolved according to interference parameter such as compacting jamming signal type and noise bandwidth etc. by interference, the DDS device controlling compacting interference generation unit carries out frequency modulation (PFM), control the modulation period of the High Speed Modulation switch of intermediate frequency Modulation unit, thus generation is taken aim at frequently, frequency sweep, broadband acoustical interference, be interrupted interference and wait compacting interference, the intensity of compacting undesired signal utilizes the programmable attenuator of intermediate frequency Modulation unit to control equally.
Claims (6)
1. outfield dual-purpose portable interference simulation device in a kind, it is characterized in that: this device comprises cabinet (8), in cabinet (8), be provided with Signal reception incidence mount (1), aobvious control unit (2), intermediate frequency distribute and signal madulation unit (3), frequency synthesizer (4), intermediate frequency Modulation unit (5), radio-frequency channel unit (6) and sender unit (7), described Signal reception incidence mount (1), aobvious unit (2) of controlling all are distributed with intermediate frequency with frequency synthesizer (4) and signal madulation unit (3) is connected; Intermediate frequency is distributed and is connected with radio-frequency channel unit (6) by intermediate frequency Modulation unit (5) with signal madulation unit (3), and radio-frequency channel (6) are connected with sender unit (7).
2. interior outfield according to claim 1 dual-purpose portable interference simulation device, it is characterized in that: indicative control unit (2) comprises PC (23), keyboard (24), liquid crystal display (25) and interface (26), PC (23) to be distributed with intermediate frequency by High Speed Serial (27) and signal madulation unit (3) is connected, and keyboard (24), liquid crystal display (25) and interface (26) all PC (23) are connected; Keyboard (24) and liquid crystal display (25) are arranged on cabinet (8) panel.
3. interior outfield according to claim 1 dual-purpose portable interference simulation device, it is characterized in that: frequency synthesizer (4) comprises crystal oscillator (19), clock distribution circuit (38), wave filter (39), harmonic oscillator (41), power splitter (40) and switch (42), distribute and the control command of signal madulation unit (3) according to intermediate frequency, harmonic oscillator (41) produces the signal of corresponding frequencies, by switch filter (39), power splitter (40) leaches intermediate frequency allocation units, on intermediate frequency Modulation unit, continuous local oscillation signal needed for down coversion network directly sends, another organizes clock signal, the continuous local oscillation signal needed for receiving element and the upper and lower frequency conversion network of radio-frequency channel unit is leached by switch (42), wave filter (39), fixing local oscillation signal needed for upper and lower frequency conversion utilizes point of fixity frequency wave filter (39) to leach, and is supplied to intermediate frequency and distributes and signal madulation unit (3).
4. interior outfield according to claim 1 dual-purpose portable interference simulation device, it is characterized in that: intermediate frequency Modulation unit (5) and the frequency of radio-frequency channel unit (6) to the undesired signal received and frequency synthesizer synthesis carry out Doppler modulation through filtering and amplifying circuit (10), and carry out the amplitude control of signal by programmable attenuator (11); Speed-sensitive switch (12) is selected to be sent to compositor (13), select output channel after shunt, send sender unit (7) through up-conversion (14) switch (42) again after having processed, the mode injected by emitting antenna radiation or radio-frequency cable send tested radar.
5. interior outfield according to claim 1 dual-purpose portable interference simulation device, it is characterized in that: intermediate frequency distributes and signal madulation unit (3) comprises controller (22), FPGA(21) and DRFM bandwidth unit (20), DRFM bandwidth unit (20) comprise dual port RAM (33), A D(32) and D A(34), controller (22) is connected with indicative control unit (2) with FPGA(21); By FPGA(21) the DRFM bandwidth unit (20) that controls plays central role; Ultra large scale FPGA (21) control dual port RAM (33) store through A D(32) the down coversion digital signal changed, line algorithm of going forward side by side resolves, modulates; And according to user arrange parameter requirements, and then store or through D A(34) carry out digital-to-analogue conversion after launch.
6. interior outfield according to claim 1 dual-purpose portable interference simulation device, it is characterized in that: cabinet (8) is drawer structure, inside be provided with set of circuits flaggy, receive incidence mount (1), aobvious control unit (2), intermediate frequency distributes and signal madulation unit (3), frequency synthesizer (4), intermediate frequency Modulation unit (5), radio-frequency channel unit (6) and sender unit (7) are all integrated on board layer.
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| CN107544060A (en) * | 2017-08-17 | 2018-01-05 | 南京长峰航天电子科技有限公司 | A kind of portable interference acquisition and memory system |
| 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 |
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| CN111970083A (en) * | 2020-07-08 | 2020-11-20 | 北京航天华腾科技有限公司 | Interference signal generating device and method and interference signal source equipment |
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