Radar signal detection method and device, equipment and storage medium

Abstract

The invention relates to a radar signal detection method and device, computer equipment and a storage medium, and the method comprises the steps that signal processing equipment carries out the fast Fourier operation of an intermediate frequency signal outputted by a front-end link of a radar receiver, and obtains intermediate frequency data corresponding to the intermediate frequency signal, wherein the intermediate frequency data comprises amplitudes corresponding to all frequency points; then, performing cancellation processing on the intermediate frequency data according to a preset intermediate frequency phase noise base model to obtain target intermediate frequency data, wherein the intermediate frequency phase noise base model is a relation model between the frequency and the phasenoise power spectral density obtained based on the phase noise distribution characteristics of the transmitted leakage signal; and finally, detecting the target intermediate frequency data to obtain radar system acquisition information. By adopting the method, the noise of the radar system can be suppressed, the sensitivity of the radar receiving system is improved, and the target detection performance of the radar system is further optimized.

Description

technical field [0001] The present invention relates to the field of radar technology, in particular to a radar signal detection method, device, equipment and storage medium. Background technique [0002] The FM continuous wave system radar has the characteristics of low peak power and wide operating frequency range, and the transmission and reception are carried out at the same time, and the target distance and speed are obtained through the frequency difference, and there is no distance blind zone. In addition, the structure of the whole machine is simple, small in size, low in cost, easy to realize integrated integration, and has a wide range of application fields. The ratio of radar transmitter power to receiver sensitivity becomes larger as the distance of measuring and tracking targets gets farther. Greater transmit power means greater leakage coupling, and greater leakage coupling will inevitably lead to worse sensitivity. [0003] At present, the common main measur...

AI Technical Summary

Problems solved by technology

[0007] However, the above method cannot effectively suppress the near-end noise of the receiver caused by the phase noise of the strong transmit leakage signal, which affects the receiving sensitivity of the system

Images