Title:
MILLIMETER WAVE RADAR DATA CLUSTERING METHOD BASED ON MULTI-FRAME DOPPLER VELOCITY DIMENSION EXPANSION
Document Type and Number:
WIPO Patent Application WO/2024/060771
Kind Code:
A1
Abstract:
A millimeter wave radar data clustering method based on multi-frame Doppler velocity dimension expansion. The method comprises: S1. preprocessing inputted millimeter wave radar frame data, and performing three-dimensional coordinate normalization on the preprocessed frame data; S2. invoking an OPTICS method to obtain a normalized data clustering result; S3. extracting a clustering data label from the normalized data clustering result, and matching the multi-frame clustering data with present-frame data to obtain a present-frame data cluster. The method introduces a Doppler velocity dimension, and can effectively distinguish between targets with similar position dimension distances but which have relative motion, thereby solving the problem of not being able to distinguish between short-distance targets when clustering is dependent purely on position information. The method further introduces a multi-frame delayed data method for a small targets prone to missed detection, where, if a single-frame missed detection probability is p f, the missed detection probability of such a target can be reduced to p f N, thereby improving the performance of the clustering method.
Inventors:
WANG SHUAI (CN)
LI ZAIXING (CN)
SUN HAO (CN)
LI ZAIXING (CN)
SUN HAO (CN)
Application Number:
PCT/CN2023/104570
Publication Date:
March 28, 2024
Filing Date:
June 30, 2023
Export Citation:
Assignee:
SHENZHEN ANNGIC TECH CO LTD (CN)
International Classes:
G01S7/41; G01S13/931
Foreign References:
| CN115236627A | 2022-10-25 | |||
| CN113591695A | 2021-11-02 | |||
| US20040158678A1 | 2004-08-12 | |||
| JP2021034025A | 2021-03-01 | |||
| US20220155432A1 | 2022-05-19 |
Other References:
ZHAO, JIA'NAN: "Research on Target Azimuth Estimation and Recognition Technology of Automotive Millimeter Wave Radar", CHINESE MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE &TECHNOLOGY II, no. 3, 15 March 2022 (2022-03-15), pages 58 - 62, ISSN: 1674-0246
GONG, WEI: "Design and Implementation of the System for Human Statistics, Attitude Recognition and Tracking Based on Millimeter Wave Radar", INFORMATION SCIENCE AND TECHNOLOGY, CHINESE MASTER’S THESES FULL-TEXT DATABASE, no. 1, 15 January 2022 (2022-01-15), pages 45 - 58, ISSN: 1674-0246
GONG, WEI: "Design and Implementation of the System for Human Statistics, Attitude Recognition and Tracking Based on Millimeter Wave Radar", INFORMATION SCIENCE AND TECHNOLOGY, CHINESE MASTER’S THESES FULL-TEXT DATABASE, no. 1, 15 January 2022 (2022-01-15), pages 45 - 58, ISSN: 1674-0246
Attorney, Agent or Firm:
SHENZHEN HUATENG INTELLECTUAL PROPERTY AGENT CO., LTD (CN)
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