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Design of Vehicle Forward Collision Warning System Based on Millimeter Wave Radar
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[1]ZHANG Sanchuan,YE Jianming,SHI Yanjuan.Design of Vehicle Forward Collision Warning System Based on Millimeter Wave Radar[J].Journal of Zhengzhou University (Engineering Science),2020,41(06):13-18.[doi:10.13705/j.issn.1671-6833.2020.06.006]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 41卷 Number of periods: 2020 06 Page number: 13-18 Column: Public date: 2020-12-31
Title:
Design of Vehicle Forward Collision Warning System Based on Millimeter Wave Radar
Author(s):
ZHANG Sanchuan1; YE Jianming2; SHI Yanjuan1
1.School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou 450001, China;2.Zhejiang Chuangli Automotive Air Conditioner Co.， Ltd., Longquan 323700, China
Keywords:
millimeter-wave radar; early warning algorithm; front-collision system; safe distance model; signal processing;  road test
CLC:
-
DOI:
10.13705/j.issn.1671-6833.2020.06.006
Abstract:
In order to study the feasibility of millimeter wave radar for vehicle forward collision avoidance detection, a forward collision avoidance device was designed based on 77 GHz millimeter wave radar. Aiming at the low frequency leakage wave signal and high frequency interference signal, the device used analog signal processing module and other hardware systems for preliminary filtering. On this basis, the distance and speed of the target were obtained through the processing of FIR digital filtering, FFT transform, constant false alarm detection and other digital algorithms. At the same time, a multi-stage pre-warning model and method was constructed based on millimeter wave radar azimuth detection principle and driving safety distance model for the forward collision condition of passenger cars on structured roads. Road test showed that the distance detection error of the device designed for static target was 4.5%, and the maximum error was 5% for detecting two dynamic targets at the same time. Therefore, it was feasible for 77 GHz millimeter wave radar to be used in the design of vehicle anti-collision warning system.
References:
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