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특이값 분해를 이용한 차량용 FMCW 레이더의 도래각 추정
임영석(YoungSuk Lim),정현종(Hyeongjong Jeong),임준홍(Joonhong Lim) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6
This paper proposes direction of arrival (DOA) estimation method of automotive radar using frequency modulation continuous wave (FMCW). In conventional DOA estimation method, the size of automotive radar needs to be increased to get the high angular resolution. However, conventional DOA estimation method has a major disadvantage because of the limitation of automotive space. In this paper, we propose new estimation method using singular value decomposition (SVD). The time delay from two received signals is used to form two cross correlation matrices. Then we apply SVD method to get the signal subspace matrix. The simulation results show less complexity of the proposed method than conventional methods for direction of arrival estimation.
칼만 필터를 이용한 FMCW 레이더에서의 선행 차량 탐지 및 추적
임영석(YoungSuk Lim),임준홍(Joonhong Lim) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.11
This paper proposes detection and tracking of vehicles in automotive frequency modulation continuous wave (FMCW) radar with Kalman Filter. In conventional ACC(Adaptive Cruise Control) system, it is required to keep the distance and the velocity from forward vehicles. In this paper, we propose the estimation method to track the forward vehicle at traffic congestion or inner cities through Kalman Filter. We predict and update the position, velocity and acceleration of the forward vehicles in the proposed method. We confirm that the mean square errors of position, velocity and acceleration are acceptable through the simulation studies made up from the scenario of the expected situation.