超宽带LFM信号去斜率脉压分析  

Analysis of pulse compression of dechirp for UWB LFM signal

作　　者：明文华[1] 刘志学[1] 

机构地区：[1]华东电子工程研究所,安徽合肥230031

出　　处：《航天电子对抗》2007年第5期58-61,64,共5页Aerospace Electronic Warfare

摘　　要：去斜率脉压法能够极大地降低对超宽带LFM信号的高采样率要求。通过对去斜率脉压过程的分析及仿真得出了两条结论:对去斜率脉压性能影响最大的是参考信号与回波信号的时延差,而时延差对脉压性能影响的程度则取决于加权函数的时间失配性质;根据加权函数时间失配性质可以确定采样频率。该结论对工程实现去斜率脉压处理有一定参考价值。The pulse compression of dechirp can reduce sampling rate for UWB signal greatly. Two conclusions can be drawn from the analysis and simulation of the pulse compression of dechirp：The delay of reference signal and echo signal affects the pulse compression of dechirp badly,but the influence extent is decided by the property of weighting function;Sampling rate can be chosen by the property of time mismatching of weighting function. The conclusions can be useful for the realization of the pulse compression of dechirp.

关 键 词：超宽带 线性调频 去斜率 脉压 

分 类 号：TN957.51[电子电信—信号与信息处理]