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调频连续波雷达泄漏信号抑制技术综述
谭瑷军,谭泽富,燕曼君
0
(重庆三峡学院 信号与信息处理重点实验室,重庆 万州 404000)
摘要:
泄漏信号的抑制技术是提高调频连续波(Frequency Modulated Continuous Wave,FMCW)雷达系统整体性能的关键点,一直受到业界以及学术界的广泛关注。综述了FMCW雷达泄漏信号抑制技术在国内外的发展历程及现状;分析了解决FMCW雷达中信号泄漏问题的关键技术,可归纳为基于收发天线控制的隔离技术、基于收发通道的对消技术以及基于现代信号处理的泄漏抑制技术,并详细讨论了各技术的原理、实际应用、优缺点;最后给出了FMCW雷达泄漏信号抑制技术研究的建议。
关键词:  调频连续波雷达  信号泄漏  信号抑制  隔离技术  对消技术  现代信号处理
DOI:
基金项目:重庆市教委创新团队基金资助(CXTDX201601034)
Summarization of Leakage Signal Suppression Technology for Frequency Modulated Continuous Wave Radar
TAN Aijun,TAN Zefu,YAN Manjun
(Key Laboratory of Signal and Information Processing,Chongqing Three Gorges University,Wanzhou 404000,China)
Abstract:
The leakage signal suppression technology is a key point to improve the overall performance of the frequency modulated continuous wave(FMCW) radar system,and has been widely concerned by the industry and academia.In this paper,the development history and current status of FMCW radar leakage signal suppression technology at home and abroad are summarized.The key techniques for solving the signal leakage problem in FMCW radar are analyzed,including isolation technology based on transceiver antenna control,cancellation technology based on transceiver channels and leakage suppression technology based on modern signal processing.And the principle,practical application,advantages and disadvantages of each technology are discussed in detail.Finally,some suggestions for the research on FMCW radar leakage signal suppression technology are given.
Key words:  FMCW radar  signal leakage  signal suppression  isolation technology  cancellation technology  modern signal processing
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