CN106508092B - A kind of dedicated platform for producing noise jamming signal - Google Patents
A kind of dedicated platform for producing noise jamming signalInfo
- Publication number
- CN106508092B CN106508092B CN200910124703.4A CN200910124703A CN106508092B CN 106508092 B CN106508092 B CN 106508092B CN 200910124703 A CN200910124703 A CN 200910124703A CN 106508092 B CN106508092 B CN 106508092B
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- China
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- signal
- clutter
- data
- fpga
- noise jamming
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Abstract
The present invention relates to a kind of noise jamming hardware platform, anti-interference field in category Missile Preliminary technology, the reconstruct data of the signal that the platform is mainly obtained according to Computing, Direct Digital Frequency Synthesizers, produce height clutter, sidelobe clutter and main-lobe clutter in real time, be mainly used in clutter environment simulation in radio frequency guidance emulation.Signal in required frequency range is first generated by certain frequency precision and is stored by the present invention, using ADSP-TS201 memory spaces big, arithmetic speed is high the characteristics of, according to semaphore request to data directly plus and, export after recycling D/A conversion, so as to the noise signal needed for obtaining, noise signal needed for being obtained using the present invention, true, easy, effectively realize the clutter spectrum output that system needs.
Description
Technical field
The present invention relates to guided missile general technical field, and in particular to a kind of generation noise jamming signal it is special
Platform, the platform can be with clutter environment in analog radio frequency guidance emulation.
Background technology
Modern radar/guiding head system becomes increasingly complex, and ground, sea clutter limit radar/guiding head system
Performance, it is difficult to handled with the analysis method of simple, intuitive it, widely used at present is that simulation is imitative
Genuine method or by clutter Simulator, using hardware calculating in real time, also have a kind of method be
In Hardware-in-loop Simulation Experimentation, by presenting first ground radiated needed for producing, sea clutter environment, as much as possible will
Ground, sea clutter spectrum reappear on intermediate frequency to be come out.Therefore how more true, easy simulation noise signal
Environment, targetedly carry out clutter confrontation research, for lifting armament systems overall performance have and its
Important meaning.Real reproduction noise signal environment is sufficiently complex, thus which kind of takes effectively emulate
Alternative has various ways.For example also can be with using IFFT, the method such as mathematical algorithm real-time operation；
But the cycle is long in practical application, and algorithm is complicated, adds the difficulty of system design.
The content of the invention
Problem to be solved by this invention is the basic demand emulated based on more than to noise signal, realizes system
The clutter spectrum output that system needs, the present invention proposes a kind of dedicated platform for producing noise jamming signal, should
Platform produces plate, video filter, frequency mixer, local oscillation circuit, host computer, intermediate frequency by baseband signal and filtered
Ripple device and power module composition；The baseband signal produce plate include FPGA, ADSP-TS201, D/A,
Operational amplifier；The FPGA includes data-interface, RAM and SECO；Described FPGA numbers
It is connected according to interface with USB-422 interfaces；Described USB-422 interfaces be data communication interface with it is upper
Machine is connected；Described ADSP-TS201 carries out calculation process to the control information from host computer, produces
Noise signal data send into RAM, will be changed by SECO after the data read-out in RAM through D/A；
Described operational amplifier will be converted from D/A after signal amplification after send video filter, video filtering
Signal afterwards is mixed through frequency mixer and local oscillation signal, then through intermediate-frequency filter to signal output；Described is mixed
The local oscillator input signals requirement of frequency device is 750MHz ,+7dBm；Used interface modular converter model
UT-890。
The characteristics of ADSP-TS201 memory spaces are big, arithmetic speed is high is utilized using the present invention, according to letter
Number require directly to add data and, exported after recycling D/A conversion, so as to obtain required noise signal,
Truly, easy reproduction noise signal environment, the clutter spectrum output that system of realizing needs.
Brief description of the drawings
Fig. 1 produces the dedicated platform system block diagram of noise jamming signal for the present invention
Embodiment
It is the dedicated platform system block diagram that the present invention produces noise jamming signal as shown in Figure 1, mainly includes：
The platform produces plate, low-pass signal wave filter, frequency mixer and power module by baseband signal；Described base
Band signal produces plate by FPGA (field programmable gate array), ADSP-TS201 (Digital Signal Processing
Device), the part such as D/A (digital analog converter) constitutes；FPGA data interface connects with USB-422 interfaces
Connect；USB-422 interfaces are connected for data communication interface with host computer；Described ADSP-TS201 pairs
Control information from host computer carries out calculation process, produces noise signal data feeding RAM, by when
Sequence control will be changed after the data read-out in RAM through D/A；Described operational amplifier will come from D/A
The signal after video filtering, described video filtering is sent through frequency mixer and local oscillator after signal amplification after conversion
Signal is mixed, then through intermediate-frequency filter to signal output；The local oscillator input signals requirement of described frequency mixer
750MHz ,+7dBm；Used interface modular converter model UT-890.It is selected by Altera
Company releases the EP1C6 of Cyclone FPGA series；It has 5980 logic units；Two locks
Phase ring (PLL), can carry out internal clocking frequency multiplication；The handling capacity of each passage is up to 311Mbps；At this
In scheme, FPGA is mainly used in designing the correlation function for realizing Digital Frequency Synthesize, and with upper bit emulator
The communication of computer.DSP selects the ADSP-TS201 produced by AD companies, and it is a performance pole
Big signal processing tasks and communication structure are specially optimized by high static superscalar processor, should
Processor combines the memory width of non-constant width and double computing modules, and its core operating frequency is
Up to 600MHz, on-chip memory DRAM has increased to 24Mbit.The memory is divided into 6 storages
Block, each memory block 4Mbit, is configured to 128K × 32bit.In this programme, ADSP-TS201 is main
Required according to the power spectrum of host computer, required signal reconstruction data are calculated in real time.D/A translation circuits
It is the key link of this hardware system, its performance directly determines the quality of each multi-channel output signal.
According to the technical requirements of system, the current-output type high-speed DAC device LTC1668 from 16 here
D/A translation circuits are constituted for core.
Claims (3)
1. a kind of dedicated platform for producing noise jamming signal, including baseband signal produce plate, video filtering
Device, frequency mixer, local oscillation circuit, host computer, intermediate-frequency filter and power module；Characterized in that, institute
The baseband signal stated, which produces plate, includes FPGA, ADSP-TS201, D/A, operational amplifier；The FPGA
Including data-interface, RAM and SECO；Described FPGA data-interface and USB-422 interfaces
Connection；Described USB-422 interfaces are connected for data communication interface with host computer；Described
ADSP-TS201 carries out calculation process to the control information from host computer, produces noise signal data feeding
RAM, will be changed by SECO after the data read-out in RAM through D/A；Described operation amplifier
Device will be converted from D/A after signal amplification after send the signal after video filter, video filtering through mixing
Device is mixed with local oscillation signal, then through intermediate-frequency filter to signal output.
2. the dedicated platform according to claim 1 for producing noise jamming signal, it is characterised in that
The local oscillator input signals requirement of frequency mixer is 750MHz ,+7dBm.
3. the dedicated platform according to claim 1 for producing noise jamming signal, it is characterised in that
The communication interface of the FPGA and host computer are USB-422 interfaces, used interface modular converter type
Number be UT-890.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910124703.4A CN106508092B (en) | 2009-12-09 | 2009-12-09 | A kind of dedicated platform for producing noise jamming signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910124703.4A CN106508092B (en) | 2009-12-09 | 2009-12-09 | A kind of dedicated platform for producing noise jamming signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106508092B true CN106508092B (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910124703.4A Active CN106508092B (en) | 2009-12-09 | 2009-12-09 | A kind of dedicated platform for producing noise jamming signal |
Country Status (1)
| Country | Link |
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| CN (1) | CN106508092B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427102A (en) * | 2018-03-04 | 2018-08-21 | 中国船舶重工集团公司第七二三研究所 | A kind of radar base band clutter generating means and method |
-
2009
- 2009-12-09 CN CN200910124703.4A patent/CN106508092B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427102A (en) * | 2018-03-04 | 2018-08-21 | 中国船舶重工集团公司第七二三研究所 | A kind of radar base band clutter generating means and method |
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