Radar signal detection method and device, equipment and storage medium

A radar signal and detection method technology, applied in the field of radar, can solve the problems affecting the receiving sensitivity of the system, the near-end noise of the receiver cannot be effectively suppressed, etc., and achieve the effects of optimizing the target detection performance, improving the sensitivity, and reducing the signal amplitude

Pending Publication Date: 2021-02-19
西安乾景防务技术有限公司
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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

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  • Radar signal detection method and device, equipment and storage medium
  • Radar signal detection method and device, equipment and storage medium
  • Radar signal detection method and device, equipment and storage medium

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] The radar signal detection method provided by the present invention can be applied to such as figure 1shown in the application environment. Wherein, the radar system 100 receives the echo signal returned by the target detection object 300, and outputs the intermediate frequency signal to the signal processing device 200 through the front-end link of the receiver of the radar system; wherein, the above-mentioned radar system can be applied to tracking and ranging and other application scenarios; the above-mentioned signal processing device may be an independent device, or a unit integrated i...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/35
CPCG01S7/352G01S7/356
Inventor 冯璟徐卫丰
Owner 西安乾景防务技术有限公司
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