CN208766295U - Airborne electronic countermeasure multifunctional comprehensive signal simulator - Google Patents

Abstract

The utility model provides a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator, with a set of equipment, that is, analog Various Complex signal, including echo signal, radar signal, interference signal and noise signal etc., greatly simplifies equipment composition structure complexity；Working frequency can cover 0.4GHz~40GHz, and minimum frequency stepping can reach 5MHz, it can be achieved that full frequency band signal imitation；With state switching performance, the technical indicator of analog signal wherein can be improved under narrowband state, broadband state can be with the signal of analog signal bandwidth 500MHz, and has ability of the extension signal bandwidth to 1GHz or 2GHz；The broadband signal that 500MHz is generated using Direct Digital, substantially increases signalling technique index.The simulator can be used for simulating Various Complex signal, while apply also for the radar system docking test of different systems and different operating frequency, and multifunction and synthesization degree are high, applied widely.

Description

Airborne electronic countermeasure multifunctional comprehensive signal simulator

Technical field

The utility model belongs to airborne electronic countermeasure engineer application technical field, in particular to a kind of airborne electronic countermeasure is more Function synthesized signal simulator.

Background technique

Signal simulator is widely used in electromagnetic environment simulation and radar signal processing field, is usually used in the complicated electricity of simulation Magnetic environment, such as interference environment and clutter environment.Currently, as the design and type of the electronic equipments such as radar are increasingly complicated more Sample, the signal kinds demand generated to signal simulator in test is more and more, multifunction, synthesization to signal simulator It is required that higher and higher.

Current signal simulator design scheme often has specific limitation (such as working frequency) to the environment that it is simulated, and only fits For completing certain simple function, such as: target simulation, general radar signal simulation, interference simulation and clutter simulation.Simple function Simulator does not have the characteristics such as Multi-functional analog, working frequency wide coverage, signal bandwidth be big.Such as the mating mark of certain radar Calibration equipment needs to complete the functions such as target simulation, guided missile simulation and interference simulation.Every kind of signal imitation in the mating calibration equipment Using different conceptual designs, a combination thereof structure type, bus method and implementation method are all different.It is in particular in: hard The device is complicated for part, is made of 4 built-up sections；Software design is then only applicable to the model radar, can not be applied to other radars Equipment.Therefore not only hardware is complicated for the equipment, and software design is not also general, thus greatly reduces the general of the signal simulator Property.

Utility model content

In order to solve the above-mentioned technical problem, the utility model provides a kind of airborne electronic countermeasure multifunctional comprehensive signal mode Quasi- device.

The utility model specific technical solution is as follows:

The utility model provides a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator, including is electrically connected with each other Simulator cabinet and aobvious control cabinet, be equipped with the main controller and the network switch being electrically connected with each other, institute in the aobvious control cabinet It states and is equipped with the display being electrically connected with the main controller and operation equipment outside aobvious control cabinet, the simulator cabinet includes phase The simulator reception device and simulator emitter being mutually electrically connected, the simulator reception device are used for radiofrequency signal point Be collected for multiple frequency ranges and respectively, in intermediate frequency, signal output all the way is merged into timesharing again, including including multiple and different frequency ranges Receiving unit and the first mixer assembly, the input terminal of the output end of first mixer assembly and the receiving unit connects It connects；Synthesis simulation after the simulator emitter is used to receive the signal of the simulator reception device output, is handled Signal and export shown to the aobvious control cabinet, including analog signal synthesize component, multiple and different frequency ranges emitting module And second mixer assembly, the output end of the analog signal synthesis component and second mixer assembly with the hair Penetrate the input terminal connection of component.

Further, the simulator reception device further includes switch block, the first motherboard and power module, described Switch block, the receiving unit and first mixer assembly are electrically connected with first motherboard；The reception Component includes that 0.1~8GHz receiving unit, 8~18GHz receiving unit and 18~40GHz receive frequency synthesizer component, and described first Mixer assembly includes the one one local oscillator component and the first fiducial, the output end of first fiducial and the described 1st The input terminal of local oscillator component connects, the input terminal of the switch block connect with the output end of the receiving unit, output end and The input terminal of the simulator emitter connects.

Further, it includes 18~26GHz receiving module, 26~40GHz reception that the 18~40GHz, which receives frequency synthesizer component, Module and the first frequency synthesizer module, the output end of the first frequency synthesizer module respectively with 18~26GHz receiving module and institute State the input terminal connection of 26~40GHz receiving module, 18~26GHz receiving module and 26~40GHz receiving module Output end connect respectively with the input terminal of 8~18GHz receiving unit.

Further, the simulator emitter further includes the second motherboard, and the emitting module includes 0.1~8GHz Emitting module, 8~18GHz emitting module and 18~40GHz emit frequency synthesizer component, and second mixer assembly includes the 2nd 1 Local oscillator component and the second fiducial, the output end of second fiducial synthesize component, institute with the analog signal respectively State the 2nd 1 local oscillator component, 0.1~8GHz emitting module, 8~18GHz emitting module and the 18~40GHz Emit frequency synthesizer component input terminal connection, the output end of the 2nd 1 local oscillator component respectively with 0.1~8GHz transmitting group Part, 8~18GHz emitting module the input terminal of output end and the 18~40GHz transmitting frequency synthesizer component connect.

Further, the analog signal synthesis component includes two wideband digital frequency memory components and signal synthesis group Part, the input terminal of two wideband digital frequency memory components is connect with the output end of second fiducial, output end is equal The input terminal connection of component is synthesized with the signal, two wideband digital frequency memory components are respectively used to generate target echo letter Number and noise signal and export give the signal synthesize component.

Further, 18~40GHz transmitting frequency synthesizer component includes 18~26GHz transmitting module, 26~40GHz transmitting The output end of module and the second frequency synthesizer module, the second frequency synthesizer module and 8~18GHz emitting module respectively with institute 18~26GHz transmitting module is stated to connect with the input terminal of 26~40GHz transmitting module.

The beneficial effects of the utility model are as follows: the utility model provides a kind of airborne electronic countermeasure multifunctional comprehensive letter Number simulator, by the simulator reception device in simulator cabinet to radiofrequency signal carry out frequency-division section collection and merging export to Simulator emitter, simulator emitter synthesizes analog signal after handling signal, and exports to the aobvious control machine Cabinet is shown.Simulator a set of equipment, that is, analog Various Complex signal, including echo signal, radar signal, interference Signal and noise signal etc. greatly simplifie equipment composition structure complexity；Working frequency can cover 0.4GHz~40GHz, Minimum frequency stepping can reach 5MHz, it can be achieved that full frequency band signal imitation；It, wherein can under narrowband state with state switching performance The technical indicator of analog signal is improved, broadband state can be with the signal of analog signal bandwidth 500MHz, and has extension signal Ability of the bandwidth to 1GHz or 2GHz；The broadband signal that 500MHz is generated using Direct Digital, is substantially increased signalling technique and referred to Mark.The simulator can be used for simulating Various Complex signal, while apply also for the radar of different systems and different operating frequency System docking test, multifunction and synthesization degree are high, applied widely.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 1；

Fig. 2 is a kind of work flow diagram of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 1；

Fig. 3 is that simulator receives dress in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator as described in example 2 The working principle diagram set；

Fig. 4 is that 0.1~8GHz is received in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator as described in example 2 The working principle diagram of component；

Fig. 5 is that 8~18GHz is received in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator as described in example 2 The working principle diagram of component；

Fig. 6 is that 18~40GHz is received in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator as described in example 2 The working principle diagram of component；

Fig. 7 is simulator transmitting dress in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 3 The working principle diagram set；

Fig. 8 is 0.1~8GHz transmitting in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 3 The working principle diagram of component；

Fig. 9 is 8~18GHz transmitting in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 3 The working principle diagram of component；

Figure 10 is that 18~40GHz connects in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 3 Receive the working principle diagram of frequency synthesizer component；

Figure 11 is simulator transmitting dress in a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator described in embodiment 3 The work flow diagram set.

Wherein: 1, simulator cabinet；11, simulator reception device；111, switch block；112, the first motherboard；113, Power module；114,0.1~8GHz receiving unit；115,8~18GHz receiving unit；116,18~40GHz receives frequency synthesizer group Part；1161,18~26GHz receiving module；1162,26~40GHz receiving module；1163, the first frequency synthesizer module；117, the one one Local oscillator component；118, the first fiducial；12, simulator emitter；121, the second motherboard；122,0.1~8GHz emits Component；123,8~18GHz emitting module；124,18~40GHz emits frequency synthesizer component；1241,18~26GHz transmitting module； 1242,26~40GHz transmitting module；1243, the second frequency synthesizer module；125, the 2nd 1 local oscillator component；126, the second fiducial； 127, wideband digital frequency memory component；128, signal synthesizes component；2, control cabinet is shown；21, main controller；22, the network switch；23, Display；24, equipment is operated.

Specific embodiment

The utility model is described in further detail with following embodiment with reference to the accompanying drawing.

Embodiment 1

As shown in Fig. 1~2, the utility model embodiment 1 provides a kind of airborne electronic countermeasure multifunctional comprehensive signal mode Quasi- device is equipped in the aobvious control cabinet 2 and is electrically connected with each other including the simulator cabinet 1 and aobvious control cabinet 2 being electrically connected with each other Main controller 21 and the network switch 22, be equipped with the display that is electrically connected with the main controller 21 outside the aobvious control cabinet 2 23 include the simulator reception device 11 being electrically connected with each other and simulator transmitting with operation equipment 24, the simulator cabinet 1 Device 12, the simulator reception device 11 for radiofrequency signal is divided into multiple frequency ranges and is collected respectively, intermediate frequency again Signal output all the way, including receiving unit and the first mixer assembly including multiple and different frequency ranges, described the are merged into timesharing The output end of one mixer assembly is connect with the input terminal of the receiving unit；The simulator emitter 12 is described for receiving Simulator reception device 11 export signal, handled after synthesize analog signal and export shown to the aobvious control cabinet 2 Show, emitting module and the second mixer assembly including analog signal synthesis component, multiple and different frequency ranges, the analog signal are closed It is connect with the input terminal of the emitting module at the output end of component and second mixer assembly.

As shown in figure 4, human-computer interaction circle provided first by display 23 and operation equipment 24 (mouse or keyboard) The various parameters of face setting analog signal are simultaneously sent to main controller 21, are transferred data in the network switch 22 by network interface, then lead to It crosses the network switch 22 and sends control parameter to two combinations of simulator cabinet 1.Simulator reception group in simulator cabinet 1 11 are closed according to the control parameter received, the radiofrequency signal of different frequency range is received by the receiving unit of different frequency range, will be received Radiofrequency signal be mixed with local oscillation signal by the first mixer assembly, radiofrequency signal is down-converted to after 1.2G intermediate frequency and gives simulation Analog signal synthesis component in device transmitting combination 2 synthesizes analog signal, finally upconverts to radio frequency by the second mixer assembly After export.Analog signal synthesis component can both synthesize target echo signal and radar emission signal, can also with noise signal and Interference signal

In actual use, which can be designed as standard CPCI cabinet, such as standard 7U19 " upper frame type cabinet, aluminium Alloying metal outer surface band protective layer, 2~18 slot CPCI backboard of internal support 6U；Combination switch plate is located on rear panel, penetrates Frequency and low frequency socket, for combining connection with other.Each component is inserted into motherboard, group using inserted mode from front to back in combination Part has boosting aid-pulling device, guarantees that component smoothly plugs.Component control signal by motherboard transmit, the radiofrequency signal of component all by The SMA socket input and output of forward portion are connected using coaxial cable between various components.Component simulates partial circuit using screen Shield structure, outer cover metal case guarantee Electro Magnetic Compatibility.Aobvious control cabinet 1 can be set with recipient processor cabinet 2 using integral type Meter, 19 " cabinet of standard 34U, front glass door, rear side clamshell doors, thus convenient and practical.

Multifunctional comprehensive signal simulator provided in this embodiment carries out radiofrequency signal by simulator reception device 11 Frequency-division section is collected and merges output to simulator emitter 12, and simulator emitter 12 synthesizes mould after handling signal Quasi- signal, and export and shown to the aobvious control cabinet 2.Simulator a set of equipment, that is, analog Various Complex signal, Including echo signal, radar signal, interference signal and noise signal etc., equipment composition structure complexity is greatly simplified；Work Working frequency can cover 0.4GHz~40GHz, and minimum frequency stepping can reach 5MHz, it can be achieved that full frequency band signal imitation；With shape State handoff functionality, wherein can be improved the technical indicator of analog signal under narrowband state, broadband state can be with analog signal bandwidth The signal of 500MHz, and have ability of the extension signal bandwidth to 1GHz or 2GHz；Generate 500MHz's using Direct Digital Broadband signal substantially increases signalling technique index.The simulator can be used for simulating Various Complex signal, apply also for simultaneously The docking test of the radar system of different systems and different operating frequency, multifunction and synthesization degree are high, applied widely.

Embodiment 2

As illustrated in figures 3-6, it is multi-functional comprehensive to provide a kind of airborne electronic countermeasure on the basis of embodiment 1 for the present embodiment 2 Signal simulator is closed, it further includes switch block 111, first which, which further defines the simulator reception device 11, Motherboard 112 and power module 113, the switch block 111, the receiving unit and first mixer assembly with First motherboard 112 is electrically connected；The receiving unit includes 0.1~8GHz receiving unit 114,8~18GHz reception group Part 115 and 18~40GHz receive frequency synthesizer component 116, and first mixer assembly includes the one one local oscillator component 117 and first Fiducial 118, the output end of first fiducial 118 are connect with the input terminal of the one one local oscillator component 117, institute The input terminal for stating switch block 111 connect with the output end of the receiving unit, output end and the simulator emitter 12 Input terminal connection.

It includes 18~26GHz receiving module 1161,26~40GHz reception mould that the 18~40GHz, which receives frequency synthesizer component 116, The output end of block 1162 and the first frequency synthesizer module 1163, the first frequency synthesizer module 1163 connects with the 18~26GHz respectively It receives module 1161 to connect with the input terminal of 26~40GHz receiving module 1162,18~26GHz receiving module, 1161 He The output end of 26~40GHz receiving module 1162 is connect with the input terminal of 8~18GHz receiving unit 115 respectively.

0.1~8GHz receiving unit 114,8~18GHz receiving unit 115,18~40GHz receiving unit the 116, the 1st Local oscillator component 117 and the first fiducial 118 can be realized by fpga chip.Fpga chip can receive cpci bus On be related to the information while correspondingly circuit in control assembly of this component, and the information of this component is sent to cpci bus.

0.1-8GHz receiving unit 114 (wherein 0.4~8GHz frequency range is used only) and 8-18GHz receiving unit 115 are distinguished For receiving the radiofrequency signal of respective respective frequencies range, and receives and come from the one one local oscillator component 117 and the first fiducial 118 two local oscillation signals generated, are mixed again with two local oscillators after being mixed with a local oscillator and generate 1.2GHz intermediate-freuqncy signal access switch group In part 111, frequency selection is carried out by switch block 111 and inputs to simulator emitter 12；18-40GHz receives frequency synthesizer group Part 116 receives the signal (18-26GHz and 26-40GHz) from two channels, by the signal and the first benchmark group in two channels It is down-converted to 8-18GHz after the 100MHz mixing that part 118 generates, two channels is divided to input a signal into 8-18GHz receiving unit 115；First fiducial 118, which generates a local oscillation signal, two local oscillation signals and generates 100MHz reference signal, inputs to simulator Emitter 12 and other external modules.

Since the power bracket of input signal is very wide, reach the dynamic range of 100dB, therefore, is received in 0.1~8GHz Numerical control of the input terminal of component 114,8~18GHz receiving unit 115 and 18~40GHz receiving unit 116 added with big stepping Attenuator prevents the saturation of receiver for receiving big signal.For 0.1~8GHz receiving unit 114 and 8~18GHz reception group Part 115, since it is received, signal band limits is very wide, can not realize that image frequency inhibits function, choosing with single filter Signal is divided into multiple frequency ranges with switch filtering module, preferably to inhibit the image frequency components of each frequency range.0.1-8GHz and 8- The radiofrequency signal of 18GHz is mixed with a local oscillation signal of frequency modulation, generates an intermediate-freuqncy signal of 9.8GHz and 3.4GHz respectively, in one Frequency signal and two fixed local oscillation signals mixing generate two intermediate-freuqncy signals of 1.2GHz.An intermediate-freuqncy signal bandwidth of 9.8GHz is divided into 600MHz and two kinds of 60MHz, two intermediate-freuqncy signal bandwidth are divided into 500MHz and two kinds of 50MHz, receiving channel after such two-stage cascade It can satisfy the index 500MHz and 50MHz of system bandwidth；And an intermediate-freuqncy signal bandwidth of 3.4GHz be divided into 1.1GHz and Two kinds of 600MHz, two intermediate-freuqncy signal bandwidth are divided into 1GHz and two kinds of 500MHz, and receiving channel can satisfy after such two-stage cascade The index 1GHz and 500MHz of system bandwidth.Two kinds of passband widths can be switched by switch block 111 under above situation.

And for 18~40GHz receiving unit 116, reception signal frequency range is wider, can not be realized with single channel Receive capabilities, it is therefore desirable to two receiving channels are set, receive the signal of 18-26GHz and 26-40GHz respectively.Two-way radio frequency letter It number is mixed with a local oscillation signal, generates an intermediate-freuqncy signal of 8-18GHz, one intermediate-freuqncy signal of two-way is sent to 8-18GHz simultaneously Receiving unit 115, and realize secondary mixing, output 1.2GHz intermediate-freuqncy signal, it is handled in the manner previously described.It is noted that It is that, when receiving the signal of 18-40GHz, the necessary constant attenuation 2dB of the numerical-control attenuator of 8-18GHz receiving unit 115 makes to connect Receipts machine is unsaturated.

In 0.1~8GHz receiving unit 114,8~18GHz receiving unit 115 and 18~40GHz receiving unit 116 Output end is coupled out signal all the way and is used for malfunction monitoring；It is equipped with two-stage numerical-control attenuator in each channel, realizes 61.5dB's Dynamic range expansion, the final dynamic range for realizing 100dB.

One one local oscillator component 117 is for generating various one local oscillation signals of frequency hopping required for 0.4-18GHz signal frequency conversion (9-18GHz ultra wide band Frequency Hopping Signal).

There is 100MHz crystal oscillator inside first fiducial 118, is the 10MHz sent with internal 100MHz or external system Reference signal can be selected with switch, by amplifier, be generated required for two-way 0.4-18GHz signal frequency conversion as power splitter Fix two local oscillation signals, provide second of mixing point frequency source for all band frequency conversion；Sampling clock all the way can also be generated, In two local oscillation signals and sampling clock generated by phaselocked loop；Also generating three road 100MHz reference signals send other assemblies simultaneously, produces Raw 10MHz reference signal send external system for system coherent.

Switch block 111 is chosen quick, filter with low insertion loss single-pole double-throw switch (SPDT) and is realized to 0.1-8GHz receiving unit and 8- The intermediate-freuqncy signal of 18GHz receiving unit two-way output is selected, then with the numerical-control attenuator of 31.5dB to intermediate-freuqncy signal into Line amplitude control, to adjust receiver gain.Again by 1.2GHz intermediate-freuqncy signal one dividing into three, wherein two paths of signals is put respectively Greatly, after the processing such as filtering, simulator emitter 12 is given, another way is spare.

Embodiment 3

As shown in Fig. 7~11, it is multi-functional that the present embodiment 3 provides a kind of airborne electronic countermeasure on the basis of embodiment 1 Integrated signal simulator, it further includes the second motherboard 121 which, which further defines the simulator emitter 12, The emitting module includes that 0.1~8GHz emitting module 122,8~18GHz emitting module 123 and 18~40GHz emit frequency synthesizer Component 124, second mixer assembly include the 2nd 1 local oscillator component 125 and the second fiducial 126, second benchmark group The output end of part 126 synthesizes component, the 2nd 1 local oscillator component 125,0.1~8GHz hair with the analog signal respectively The input terminal for penetrating component 122,8~18GHz emitting module 123 and 18~40GHz transmitting frequency synthesizer component 124 connects It connects, the output end of the 2nd 1 local oscillator component 125 is sent out with 0.1~8GHz emitting module 122, the 8~18GHz respectively The output end for penetrating component 123 is connect with the input terminal of 18~40GHz transmitting frequency synthesizer component 124.

Analog signal synthesis component includes two wideband digital frequency memory components 127 and signal synthesizes component 128, and two The input terminal of a wideband digital frequency memory component 127 is connect with the output end of second fiducial 126, output end is equal The input terminal connection of component 128 is synthesized with the signal, two wideband digital frequency memory components 127 are respectively used to generate target Signal synthesis component 128 is given in echo-signal and noise signal and output.

18~40GHz transmitting frequency synthesizer component 124 includes 18~26GHz transmitting module 1241,26~40GHz transmitting mould Block 1242 and the second frequency synthesizer module 1243, the second frequency synthesizer module 1243 and 8~18GHz emitting module 123 it is defeated Outlet is connect with the input terminal of 18~26GHz transmitting module 1241 and 26~40GHz transmitting module 1242 respectively.

12 signal form of simulator emitter is divided into two parts: numerical portion and analog portion.Numerical portion is by broadband Digital frequency memory component is realized.When simulated target echo state, the 1.2G intermediate-freuqncy signal that simulator reception device 11 is sent is carried out Sampling, Digital Down Convert, filtering and extraction, then store data into DDR, further according to control information, by certain delay Time, the Wave data in DDR was carried out Digital Up Convert and D/A transformation generates target echo signal, in up-conversion ring wherein Doppler's function may be implemented in section.When clutter and disturbance state, Wave data is directly read from Flash, is converted by D/A real Existing noise signal and interference signal.Analog portion is synthesized by signal, reference signal, local oscillation signal and up-conversion passage are realized.Hair It is much like with receiving portion to penetrate part, but the frequency conversion of signal is exactly the opposite, and 1.2G intermediate-freuqncy signal is upconverted to tranmitting frequency. Frequency range is also divided into tetra- frequency ranges of 0.4-8GHz, 8-18GHz, 18-26GHz, 26-40GHz, and the selection of local oscillation signal is also the same as reception Part is consistent.The function of signal synthesis is that noise signal and interference signal are added in target echo signal.

There are two types of operating modes for simulator emitter 12: one is external 1.2G signal is received, utilizing digital frequency memory side Method realizes relay type simulation, and this method can complete target echo simulation and cheating interference analog functuion；Another kind is autonomous Analog signal is generated, does not need to receive external 1.2G signal, this method can produce including radar emission signal, target echo Signal, cheating interference signal, noise signal and compacting interference signal etc..In this simulator, the signal of both modes generation It can be synthesized by echo-signal with the signals such as interference, clutter in signal synthesis component, thus realize Multifunctional simulator Multiple analog signal.

0.1~8GHz emitting module 122,8~18GHz emitting module 123,18~40GHz transmitting frequency synthesizer component 124, the 21 local oscillator components 125, the second fiducial 126, wideband digital frequency memory component 127 and signal synthesis component 128 can be with It is realized by fpga chip.Fpga chip can receive the information for being related to this component on cpci bus while correspondingly control group Circuit in part, and send to cpci bus the information of this component.

0.1-8GHz emitting module 122 (wherein 0.4~8GHz frequency range is used only) and 8-18GHz emitting module 123 are equal The filter group of two kinds of bandwidth is used in input terminal, the spurious reduction of the radio frequency output signal of narrow band signal can be improved. 1.2GHz intermediate-freuqncy signal and two fixed local oscillators mixing, the intermediate-freuqncy signal for generating 9.8GHz and 3.4GHz respectively, intermediate frequency letter Be mixed number again with the local oscillation signal that the 2nd 1 local oscillator component 125 generates, generation 0.4-8GHz range and 8-18GHz range respectively Radiofrequency signal.

It is 18-40GHz that 18-40GHz, which emits frequency synthesizer component 124 and emits signal band limits, and range is extremely wide, can not be with individually Receive capabilities are realized in channel, therefore are realized with two receiving channels, receive the signal of 18-26GHz and 26-40GHz respectively.The Two frequency synthesizer modules 1243 generate multiple point-frequency signals with phaselocked loop, as 18-40GHz according to the input reference signal of 100MHz A local oscillator and two local oscillation signals for signal frequency conversion.Mono- intermediate-freuqncy signal of 8-18GHz all the way from 8-18GHz emitting module with one Signal mixing of shaking generates the radiofrequency signal of 18-26GHz: mono- intermediate-freuqncy signal of another way 8-18GHz is mixed generation with a local oscillation signal The radiofrequency signal of 26-40GHz.In order to improve the Out-of-band rejection degree of transmitting signal and reduce spurious level, logical per transmitting all the way Multiband switch filter group is sampled in road, 18-26GHz is divided to for two frequency ranges of 18-22GHz and 22-26GHz, by 26- 40GHz points are tetra- frequency ranges of 26-30GHz, 30-34GHz, 34-38GHz and 38-40GHz.

In addition, the overall gain of transmission channel is 20dB, in input signal power -40~0dBm, it is ensured that maximum defeated Power is greater than 15dBm out.And the numerical-control attenuator that overall attenuation is 63dB is provided in each transmission channel, it can be complete The power mediation function of transmitting signal in pairs.

The structure and function of 2nd 1 local oscillator component 125 and the second fiducial 126 respectively with the one one local oscillator component 117 and first fiducial 118 it is identical.

Wideband digital frequency memory component 127 is the critical component of multifunctional comprehensive signal simulator, completes centre frequency 1.2GHz, the analogue echoes of bandwidth 500MHz echo signal and generation noise signal, interference signal, therefore FPGA uses Xilinx The V6 device XC6VSX315T-2FF1759I of company, the chip belong to igh-speed wire-rod production line class FPGA.

In dbjective state, the 1.2GHz broadband signal A/D that simulator reception device 11 is sent is sampled, under number first Frequency conversion, filtering and extraction, then by the storage of waveform base band data into DDR.The target ginseng issued according to the second motherboard 121 Number, the waveform base band data read from DDR carry out up-conversion, interpolation, filtering and orthogonal modulation, and then D/A exports 1.2GHz Broadband target echo waveform signal.When needing to simulate Doppler frequency, in up-conversion process, the frequency for modulating NCO is come in fact Existing Doppler's function.Clutter and interference two states implementation method are essentially the same, compared with dbjective state, reduce to target The link of sampling reads the Wave data that motherboard issues directly from DDR, generates corresponding noise signal and interference signal.

Several radar emission waveform base band datas can be pre-stored in FLASH, as pulse, linear frequency modulation and phase are compiled Code etc. reads corresponding transmitted waveform base band data by different addresses, using change when needing guinea pig transmitted waveform Frequently, interpolation, filtering, orthogonal modulation and D/A export radar emission waveform.

The six road 1.2GHz intermediate-freuqncy signals that signal synthesizes 128 pairs of component inputs synthesize, and realize and fold in echo signal Add noise signal or interference signal；Two road 1.2GHz intermediate-freuqncy signals of function point output again, give respectively 0.4~8GHz emitting module and 8-18GHz emitting module.

Be not particularly limited or describe in above embodiments technical characteristic (such as how to be connected between different chip, how Be integrated on a master control borad etc.) it is conventional technical means, any technological means for being able to achieve above-mentioned function can be used. The utility model is not limited to above-mentioned preferred forms, anyone can show that other are various under the enlightenment of the utility model The product of form, however, make any variation in its shape or structure, it is all that there is the skill opposite or similar with the application Art scheme, all falls within the protection scope of the utility model.

Claims (6)

1. a kind of airborne electronic countermeasure multifunctional comprehensive signal simulator, including the simulator cabinet (1) that is electrically connected with each other and Aobvious control cabinet (2), aobvious control cabinet (2) is interior to be equipped with the main controller (21) and the network switch (22) being electrically connected with each other, institute It states and is equipped with the display (23) being electrically connected with the main controller (21) and operation equipment (24) outside aobvious control cabinet (2), it is special Sign is that the simulator cabinet (1) includes the simulator reception device (11) being electrically connected with each other and simulator emitter (12), the simulator reception device (11) for radiofrequency signal is divided into multiple frequency ranges and is collected respectively, intermediate frequency again Signal output all the way is merged into timesharing, and receiving unit and the first mixer assembly including multiple and different frequency ranges, described first is mixed The output end of frequency component is connect with the input terminal of the receiving unit；The simulator emitter (12) is for receiving the mould The signal of quasi- device reception device (11) output synthesizes analog signal and exports to aobvious control cabinet (2) progress after being handled It has been shown that, emitting module and the second mixer assembly including analog signal synthesis component, multiple and different frequency ranges, the analog signal The output end of synthesis component and second mixer assembly is connect with the input terminal of the emitting module.

2. airborne electronic countermeasure multifunctional comprehensive signal simulator as described in claim 1, which is characterized in that the simulator Reception device (11) further includes switch block (111), the first motherboard (112) and power module (113), the switch block (111), the receiving unit and first mixer assembly are electrically connected with first motherboard (112)；It is described to connect Receiving component includes that 0.1~8GHz receiving unit (114), 8~18GHz receiving unit (115) and 18~40GHz receive frequency synthesizer group Part (116), first mixer assembly include the one one local oscillator component (117) and the first fiducial (118), first base The output end of prospective component (118) is connect with the input terminal of the one one local oscillator component (117), the switch block (111) Input terminal is connect with the output end of the receiving unit, output end is connect with the input terminal of the simulator emitter (12).

3. airborne electronic countermeasure multifunctional comprehensive signal simulator as claimed in claim 2, which is characterized in that described 18~ 40GHz receive frequency synthesizer component (116) include 18~26GHz receiving module (1161), 26~40GHz receiving module (1162) and First frequency synthesizer module (1163), the output end of the first frequency synthesizer module (1163) respectively with 18~26GHz receiving module (1161) connected with the input terminal of 26~40GHz receiving module (1162), 18~26GHz receiving module (1161) and The output end of 26~40GHz receiving module (1162) connects with the input terminal of 8~18GHz receiving unit (115) respectively It connects.

4. airborne electronic countermeasure multifunctional comprehensive signal simulator as described in claim 1, which is characterized in that the simulator Emitter (12) further includes the second motherboard (121), the emitting module include 0.1~8GHz emitting module (122), 8~ 18GHz emitting module (123) and 18~40GHz transmitting frequency synthesizer component (124), second mixer assembly include the 2nd 1 Vibration component (125) and the second fiducial (126), the output end of second fiducial (126) are believed with the simulation respectively Number synthesis component, the 2nd 1 local oscillator component (125), 0.1~8GHz emitting module (122), the 8~18GHz hair Penetrate the input terminal connection of component (123) and 18~40GHz transmitting frequency synthesizer component (124), the 2nd 1 local oscillator component (125) output with 0.1~8GHz emitting module (122), 8~18GHz emitting module (123) respectively of output end It holds and is connect with the input terminal of 18~40GHz transmitting frequency synthesizer component (124).

5. airborne electronic countermeasure multifunctional comprehensive signal simulator as claimed in claim 4, which is characterized in that the simulation letter Number synthesis component include two wideband digital frequency memory components (127) and signal synthesis component (128), two wideband digitals The input terminal of frequency memory component (127) connect with the output end of second fiducial (126), output end with the signal The input terminal connection of component (128) is synthesized, two wideband digital frequency memory components (127) are respectively used to generate target echo letter Number and noise signal and export to the signal synthesize component (128).

6. airborne electronic countermeasure multifunctional comprehensive signal simulator as claimed in claim 4, which is characterized in that described 18~ 40GHz emit frequency synthesizer component (124) include 18~26GHz transmitting module (1241), 26~40GHz transmitting module (1242) and Second frequency synthesizer module (1243), the output end of the second frequency synthesizer module (1243) and 8~18GHz emitting module (123) It is connect respectively with the input terminal of 18~26GHz transmitting module (1241) and 26~40GHz transmitting module (1242).