Method and device for generating pulse compression coefficient of target detection radar system

Abstract

The invention provides a method and device for generating a pulse compression coefficient of a target detection radar system. The method includes: an FPGA main control module calculates configuration parameters and inputs them into a direct frequency synthesizer; the direct frequency synthesizer generates a chirp signal required by the radar system, and send it to the radio frequency front-end module; the transmitting channel of the radio frequency front-end module up-converts the chirp signal to the radio frequency band, and loops back to the receiving channel of the radio frequency front-end module through the radio frequency cable, and the receiving channel down-converts the signal of the radio frequency band Convert the frequency to the intermediate frequency and send it to the analog-to-digital converter; the analog-to-digital converter transmits the data of the loopback signal to the FPGA main control module; the data analysis module receives the loopback DDS data exported by the FPGA main control module, and runs the pulse compression coefficient optimization method , to calculate the optimal pulse compression coefficient. According to the solution of the invention, the pulse compression performance of the radar system can be improved, and a higher radar distance resolution can be obtained.

Description

technical field [0001] The invention relates to the field of radar system detection, in particular to a method and device for generating a pulse compression coefficient of a target detection radar system, and in particular to a method and device for generating a pulse compression coefficient for a low-small-slow target detection radar system. Background technique [0002] At present, the development of low, small and slow targets such as unmanned aerial vehicles is getting faster and faster, and more and more low and slow targets are put into military and civil applications. The effective detection of such small and slow targets is an urgent problem to be solved in the current national defense security and information security. [0003] In order to obtain high distance detection accuracy, the radar system needs to emit pulses with a sufficiently narrow width. In addition, in order to detect long-distance targets, the radar system must emit a signal with high energy. However...

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Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention proposes a method and device for generating a pulse compression coefficient of a target detection radar system. Inaccurate, technical problems that cannot meet the actual working situation

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