线性调频信号特性分析  

Analysis of Linear Frequency Modulated Signal

作　　者：赵敏[1] 吴卫山[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2009年第1期25-29,共5页Aero Weaponry

摘　　要：首先分析了线性调频信号的时频特点、脉冲压缩的基本原理及脉冲压缩后距离旁瓣的抑制;在此基础上分析了运动目标回波的脉冲压缩原理;最后介绍了线性调频脉冲压缩系统的时域和频域实现方法,比较分析了两种方法的计算量。Firstly the time and frequency domain performance of linear frequency modulated （LFM） signal are analyzed in this paper, then the theory of pulse compression for LFM signal and range side lobe suppression are introduced. Based on this, pulse compression for LFM signal of moving target is ana- lyzed. Finally, how to realize the pulse compression in time and frequency domain is presented respectively, their computation magnitude are compared.

关 键 词：线性调频 匹配滤波 脉冲压缩 

分 类 号：TN957[电子电信—信号与信息处理]