线性调频连续波雷达接收机性能分析  

The Performance Analysis of LFMCW Radar Receiver

作　　者：杨建宇[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《系统工程与电子技术》2001年第10期16-18,共3页Systems Engineering and Electronics

摘　　要：定量分析表明 ,线性调频连续波雷达的差拍 -傅立叶变换接收机是平稳高斯白噪声中点目标回波信号有效段的最佳检测系统 ,其性能十分接近于线性调频脉冲信号的匹配滤波处理。单通道差拍 -傅立叶变换接收机在工程实现中比正交双通道结构简单 ,具有等效的正交双通道性能 ,但有 3dB信噪比损失。It is proved that the beat-Fourier-transform receiver of radar is the optimum detector for target's return within effective period when the noise is of stationary white Gauss, and its performance is quite similar to matched filter processing of LFM pulse signal. Single channel structure of beat-Fourier-transform receiver is simpler in engineering realization than I-Q channels, and can achieve the property of equivalent I-Q channels with 3dB signal-to-noise-ratio lose.

关 键 词：线性调频 雷达接收机 脉冲压缩 连续波雷达 

分 类 号：TN957.5[电子电信—信号与信息处理] TN958.94[电子电信—信息与通信工程]