基于OFDM的多载波调制雷达系统信号处理及检测
doi: 10.3724/SP.J.1146.2008.00876
Signal Processing and Detecting for Multicarrier Modulated Radar System Based on OFDM
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摘要: 该文首先给出了基于OFDM的多载波调制(OFDM-MCM)雷达系统的回波模型，在此基础上推导了系统的匹配滤波输出解析式，分析了系统的检测性能，并通过仿真对比分析了单载波调制(SCM)雷达和OFDM-MCM雷达的脉冲压缩输出积分旁瓣比和接收机工作特性。结果表明，与SCM雷达相比，在测量高速目标时，OFDM-MCM雷达具有更优的脉冲压缩性能和更高的检测概率。Abstract: The echo signal model of MultiCarrier Modulated radar system based on OFDM (OFDM-MCM) is introduced firstly, the expression of the match filtering output is deduced based on it, and the detection probability is analyzed, then simulation of the Integrated SideLobe Ratio(ISLR) of the pulse compression output and Receiver Operating Characteristic(ROC) between the Single Carrier Modulated (SCM) radar and OFDM-MCM radar is compared. The simulation results indicate the OFDM-MCM radar has the better pulse compression performance and higher detection probability for high speed target.
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