A Linear Frequency Modulated Continuous Wave (LFMCW) radar ranging system based on ARM single-chip microcomputer is designed in this paper. A LFMCW radar with triangular modulation is adopted to measure target range. This paper presents the basic structure of LFMCW radar and the principles of using LFMCW radar to measure target range. The signal processing algorithm of LFMCW radar ranging system which combines FFT algorithm and CZT algorithm to process radar signal are emphatically introduced. The theoretical calculation and MATLAB simulation results prove that FFT/CZT algorithm could improve the calculation efficiency and accuracy greatly.
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陈文会,孟欣喜. LFMCW雷达测距系统及其信号处理算法的设计[J]. 科学技术与工程, 2011, (33): . chenwenhui and. Design of LFMCW Radar Ranging System and Signal Processing Algorithm[J]. Science Technology and Engineering,2011,(33).