提高零差FMCW雷达角分辨性能的信号处理技术

2016 International Conference on Control, Automation and Information Sciences (ICCAIS) Pub Date : 2016-10-01 DOI:10.1109/ICCAIS.2016.7822425

Seunghun Cha, SeungYong Shin, JunHyuk Choi, D. Yeom

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引用次数: 0

摘要

纯差调频连续波雷达(FMCW)由于收发器的结构特性导致本振(LO)信号泄漏。本路信号泄漏现象降低了高分辨率性能。因此，许多研究者一直在努力克服和改进纯差收发器的技术缺陷。本文提出了新的信号处理技术和实现方法，以提高零差FMCW雷达的高角分辨率估计。研究了传统的多信号分类算法、前向/后向空间平滑算法和波束空间算法，提出了典型的高分辨率信号处理方法，并对所提出的信号处理技术和仿真和实际实验结果进行了描述。在到达方向(DOA)方面，将该方法的高分辨率性能与基于传统MUSIC、前向/后向空间平滑(FBSS) MUSIC和波束空间(BS) MUSIC算法的一般高分辨率信号处理进行了比较。

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Signal processing techniques for improving angular resolution performance in homodyne FMCW radar

Homodyne Frequency Modulated Continuous Wave (FMCW) radar results LO (Local Oscillator) signal leakage from structural properties of a transceiver. The phenomenon of LO signal leakage degrades high resolution performance. Therefore many researchers have been trying to overcome and improve the technical shortcoming of homodyne transceiver. This paper proposes new signal processing techniques and implementations to improve high angular resolution estimation for homodyne FMCW radar. It examines several multiple signal classification (MUSIC) algorithms such as conventional, Forward/Backward spatial smoothing, and beamspace algorithms and presents typical high resolution signal processing method before describing the proposed signal processing techniques and the results of simulation and real experiment. The high resolution performance of the proposed method is compared to that of general high resolution signal processing based on conventional MUSIC, Forward/Backward spatial smoothing (FBSS) MUSIC, and beamspace (BS) MUSIC algorithms in terms of directions of arrival (DOA).

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来源期刊

2016 International Conference on Control, Automation and Information Sciences (ICCAIS)

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