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Design of Dual Beam Automotive Laser Radar  

Lee Sung-ki (전북대학교 영상공학과 컴퓨터비전 및 영상처리 연구실)
Lee Kwang-jae (한려대학교 멀티미디어 정보통신공학과)
You Kang Soo (전북대학교 영상공학과 컴퓨터비전 및 영상처리 연구실)
Kwak Hoon Sung (전북대학교 영상공학과 컴퓨터비전 및 영상처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.11A, 2005 , pp. 1056-1063 More about this Journal
Abstract
In this paper, we develop a dual beam automotive laser radar system which improve the defect of conventional unipolar one beam laser scheme. We introduce an SNR improving method using bipolar signal synthesizing scheme from two unipolar signals at the receiving unit via differential structure by allocating bipolar m-sequence into the two laser wavelengths, which have similar property like 2-D OOC, and investigate its performance. Simulation results show that the proposed dual beam scheme can have 3dB SNR improvement as compared with conventional unipolar signaling laser radar system. Also, we show the simple interference rejection scheme using differential structures. The proposed scheme have a merit to obtain additional 3dB SNR gain applied into the excellent results based on unipolar optical signal studied lately.
Keywords
ITS; Laser Radar; Lidar; ACC; dual beam;
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