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이동물체 탐지를 위한 레이다 데이터의 거리-도플러 클러스터링 기법
김성준,양동원,정영헌,김수진,윤주홍,Kim, Seongjoon,Yang, Dongwon,Jung, Younghun,Kim, Sujin,Yoon, Joohong 한국군사과학기술학회 2014 한국군사과학기술학회지 Vol.17 No.6
Recently many studies of Radar systems mounted on ground vehicles for autonomous driving, SLAM (Simultaneous localization and mapping) and collision avoidance are reported. In near field, several hits per an object are generated after signal processing of Radar data. Hence, clustering is an essential technique to estimate their shapes and positions precisely. This paper proposes a method of grouping hits in range-doppler domains into clusters which represent each object, according to the pre-defined rules. The rules are based on the perceptual cues to separate hits by object. The morphological connectedness between hits and the characteristics of SNR distribution of hits are adopted as the perceptual cues for clustering. In various simulations for the performance assessment, the proposed method yielded more effective performance than other techniques.