MCU+DSP的LFMCW雷达信号处理系统设计  

LFMCW Radar Signal Processing System Based on MCU+DSP

作　　者：王斯盾 刘鹏 Wang Sidun;Liu Peng(Department of Military Logistics,Army Logistical University,Chongqing401311,China)

机构地区：[1]陆军勤务学院军事物流系,重庆401311

出　　处：《单片机与嵌入式系统应用》2017年第12期54-58,共5页Microcontrollers & Embedded Systems

基　　金：国家级-频率估计的多段信号频谱融合法及应用基础(61271449;61302175)

摘　　要：提出了一种基于C8051F120+TMS320F28335的LFMCW雷达信号处理系统设计方案。该方案以C8051F120为信号采集核心,生成调制电压信号,驱动雷达传感器产生差频信号,并对差频信号进行信号调理与采集。以TMS320F28335为信号处理核心,嵌入基于相频匹配的频率估计算法对差频信号进行处理,得到测量距离。在线实验结果表明,系统各功能模块工作正常,相频匹配算法测量精度较高。In the paper,a scheme of LFMCW radar signal processing system based on C8051F120+TMS320F28335is proposed.C8051F120is used as the signal acquisition core,it generates the modulation voltage signal,then drives the radar sensor to generate the beat signal,and carries on the beat signal conditioning and gathering.TMS320F28335is used as the signal processing core,and the frequency estimation algorithm based on phase frequency matching is embedded to process the beat signal to get the measurement.The online experiment results show that the functional modules work properly and the phase frequency matching algorithm gains high precision.

关 键 词：LFMCW 信号处理 C8051F120 TMS320F28335 

分 类 号：TN957.51[电子电信—信号与信息处理]