Distance measurement method based on millimeter-wave radar, and relevant device

A millimeter-wave radar and distance measurement technology, which is applied in the field of physical distance measurement, can solve the problem of low performance of millimeter-wave radar distance measurement, and achieve the effect of improving work performance and speed of discrimination

Active Publication Date: 2019-07-09
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0004] The purpose of this application is to provide a distance measurement method based on millimeter wave radar, a distance measurement system based on millimeter wave radar, and a computer-readable storage medium and a millimeter-wave radar to solve the problem of low performance of the existing millimeter-wave radar in ranging

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  • Distance measurement method based on millimeter-wave radar, and relevant device
  • Distance measurement method based on millimeter-wave radar, and relevant device
  • Distance measurement method based on millimeter-wave radar, and relevant device

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[0044] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0045] Please refer to figure 1 , figure 1 It is a flow chart of a millimeter-wave radar-based distance measurement method provided in the embodiment of the present application. The distance measurement method may include:

[0046] S101: Acquiring radar signal data of the millimeter-wave radar;

[0047] This step needs to obtain the radar signal da...

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Abstract

The invention provides a distance measurement method based on a millimeter-wave radar. The method comprises the following steps that: obtaining the radar signal data of the millimeter-wave radar; according to the radar signal data, obtaining a detection matrix, and setting a distance CFAR (Constant False-Alarm Rat) threshold value, wherein the line of the detection matrix represents distance, andthe row of the detection matrix represents speed; according to the CFAR threshold value, grouping the detection matrix; in each group, comparing data in each row to obtain a maximum value; and outputting the maximum value, and determining a minimum distance between the millimeter-wave radar and an object according to the maximum value. By use of the method, the distance data is distinguished in advance, a situation that the radar can not detect the object when the radar and the object are simultaneously static can be eliminated. Meanwhile, the distinguishing speed for the shortest distance between the radar and the object is greatly improved, and the working performance of the millimeter-wave radar is improved. The invention also provides a distance measurement system based on the millimeter-wave radar, a computer readable storage medium and the millimeter-wave radar, and also has the above beneficial effects.

Description

technical field [0001] The present application relates to the field of physical distance measurement, in particular to a distance measurement method and related devices based on millimeter wave radar. Background technique [0002] Millimeter wave radar refers to the radar that works in the millimeter wave band. The millimeter-wave radar transmits the signal, and the signal generates a reflected signal after encountering the object, and then the radar receives the reflected signal, mixes the transmitted signal and the received signal, and performs Fourier transform processing to obtain the required information about the object. Distance, speed, azimuth and other data. [0003] The existing technical method can judge the shortest distance between the radar and the object and the maximum instantaneous speed group in terms of distance, but the processing process is too cumbersome and requires a large memory. When the amount of data is huge, the number of data comparisons in the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/10
CPCG01S13/103
Inventor 李光平何雨毅
Owner GUANGDONG UNIV OF TECH
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