NOISE REDUCTION METHOD FOR IMPROVING FREQUENCY-MODULATED CONTINUOUS WAVE RADAR TARGET DETECTION

WIPO Patent Application WO/2022/068097

A1

A noise reduction method for improving frequency-modulated continuous wave radar target detection, which method is applied to automotive electronic products. The method comprises: acquiring and processing an echo frequency-mixing signal of a radar, and generating an original data matrix (100); filtering the original data matrix by means of a two-dimensional self-adaptive filter (200); and processing the filtered original data matrix (300). In the method, the noise surrounding an effective target in an automotive radar signal is suppressed by means of a two-dimensional self-adaptive filter, and therefore, the contrast between a target amplitude and the surrounding noise amplitude is greatly improved in a distance Doppler image. By increasing such contrast, the ratio of a target signal power to a surrounding noise power is increased, such that a target detection method (such as a constant false alarm detection method) that takes the amplitude or power as a main feature can realize more effective detection of a radar echo weak target, thereby improving the detection rate.

BALON SIEGFRED (CN)
RUAN HONGNING (CN)
HUANG ZHEN ROLAND (CN)

PCT/CN2020/139042

April 07, 2022

December 24, 2020

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HUIZHOU DESAY SV AUTOMOTIVE CO LTD (CN)

G01S13/58; G01S7/35; G01S7/41; G01S13/931; G06F17/16

US20190317187A1	2019-10-17
CN103339525A	2013-10-02
US20110187586A1	2011-08-04
US20160061947A1	2016-03-03
US20180172816A1	2018-06-21
US20160245911A1	2016-08-25

YOGO PATENT AND TRADEMARK AGENCY LIMITED COMPANY (CN)

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