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Device and method for realizing pulse compression of 65536 points on basis of FPGA (Field Programmable Gate Array)

A pulse compression and data technology, applied in special data processing applications, complex mathematical operations, instruments, etc., can solve the problems of slow data processing speed, low interface rate, data transmission delay, etc., to achieve fast processing speed and high interface speed , The effect of high data throughput

Active Publication Date: 2017-03-08
XIDIAN UNIV
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Problems solved by technology

[0006] For the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a device and method for realizing 65536-point pulse compression based on FPGA, so as to solve the problem of slow data processing speed, low interface rate and FFT, matched filter and IFFT in traditional design schemes. The problem of data transmission delay between

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  • Device and method for realizing pulse compression of 65536 points on basis of FPGA (Field Programmable Gate Array)
  • Device and method for realizing pulse compression of 65536 points on basis of FPGA (Field Programmable Gate Array)
  • Device and method for realizing pulse compression of 65536 points on basis of FPGA (Field Programmable Gate Array)

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[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] The embodiment of the present invention provides a device for realizing 65536-point pulse compression based on FPGA. The input end of the device is connected to 16 input data channels for external pulse compression, and the output end of the device is connected to the output channel of the external pulse compression result. connection; its structure diagram is as follows figure 2 Shown:

[0054] The device includes: an input sequencing module, an inpu...

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Abstract

The invention belongs to the technical field of radar signal processing and discloses a device and method for realizing pulse compression of 65536 points on the basis of an FPGA (Field Programmable Gate Array). The implementation process comprises the following steps of: firstly receiving data from 16 paths in parallel, and storing the data into 16 block RAMs by adopting the principle of parallel reading and no conflict; then reading 16 numbers once by a production line mode, carrying out 4 stages of radix-16 butterfly computation and in-situ storage and finishing FFT (Fast Fourier Transform) processing; carrying out parallel and matched filtering processing on 16 paths and in-situ storage; then realizing IFFT processing by 4 stages of butterfly computation; and finally outputting for 16 paths in parallel, wherein rotation factors and matched filtering coefficients are generated in real time by using sectional linear triangular function tables and a mode of checking table differences. The device and method disclosed by the invention have the advantages that the use of RAM resources in the FPGA is greatly saved, the processing speed is obviously increased, and the data throughput is increased.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and in particular relates to a device and method for realizing 65536-point pulse compression based on FPGA, which can perform real-time pulse compression processing in the range or azimuth direction in a high-resolution detection radar. Background technique [0002] In the radar system, pulse compression processing can compress the wide pulse signal into a narrow pulse signal, so that the wide pulse can be transmitted to improve the average power and the detection ability of the radar, and the distance resolution of the narrow pulse can be maintained, effectively solving the radar function. The contradiction between distance and distance resolution, improve the distance resolution of radar without reducing the range of action. When pulse compression is also performed, the more computing points, the higher the resolution of the radar. With the development of the times, the require...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/14
CPCG06F17/142
Inventor 王虹现王亚彬谭高伟严晓鹏
Owner XIDIAN UNIV
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