Target detection method based on Doppler radar, medium and target detection device based on Doppler radar

A Doppler radar and target detection technology, which is applied in the field of radar detection, can solve the problems of low detection accuracy of moving targets and false targets, and achieve the effect of reducing the probability of false alarms and improving the accuracy

Inactive Publication Date: 2021-02-12
SHANDONG ACAD OF SCI INST OF AUTOMATION
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Problems solved by technology

[0003] In related technologies, in the process of detecting moving targets through Doppler radar, due to the unknown environment, interference from clutter and strong reflectors, false targets are often easily generated, especially multipath effects, etc.
Furthermore, the probability of false alarm is greatly increased, and the accuracy of moving target detection is low.

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  • Target detection method based on Doppler radar, medium and target detection device based on Doppler radar
  • Target detection method based on Doppler radar, medium and target detection device based on Doppler radar

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] In related technologies, due to the unknown environment, the interference of clutter and strong reflectors, it is often easy to generate false targets, which in turn leads to a greatly increased false alarm probability and low detection accuracy of moving targets; the target based on Doppler radar according to the embodiment of the present invention In the detection method, firstly, the echo signal data of the target to be detected is obtained, and the echo signal data is subjected to windowing processing to intercept signa...

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Abstract

The invention discloses a target detection method based on a Doppler radar, a medium and a target detection device based on the Doppler radar. The method comprises the steps of: obtaining echo signaldata, windowing the echo signal data and carrying out Fourier transform on the windowed echo signal data so as to obtain a frequency domain data matrix corresponding to the echo signal data; carryingout Doppler filtering on the frequency domain data matrix to generate a corresponding Doppler spectrum; accumulating the Doppler frequency amplitudes on the same distance unit in the Doppler spectrumto generate a first amplitude sequence corresponding to the Doppler spectrum, and removing an interference numerical value in the first amplitude sequence according to a preset amplitude threshold; and performing target detection according to the first interference-numerical-value-removed amplitude sequence. The accuracy of moving target detection can be effectively improved, and the probability of false alarm is reduced.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a target detection method based on Doppler radar, a computer-readable storage medium and a target detection device based on Doppler radar. Background technique [0002] Doppler radar is a radar that uses the Doppler effect to detect moving targets. [0003] In the related art, in the process of detecting a moving target by Doppler radar, due to the unknown environment, the interference of clutter and strong reflectors, it is easy to generate false targets, especially the multipath effect. Furthermore, the probability of false alarm is greatly increased, and the accuracy of moving target detection is low. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, an object of the present invention is to propose a target detection method based on Dopple...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41G01S13/56
CPCG01S7/415G01S7/414G01S13/56
Inventor 赵兴文颜广李向东张延波刘成业
Owner SHANDONG ACAD OF SCI INST OF AUTOMATION
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