采样孔径抖动对脉冲多普勒雷达调频信号检测性能的影响  

Impact of Sampling Aperture Jitter on FM Signal of Pulse Doppler Radar

作　　者：屈红刚[1] 高青松[1] 张强[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2014年第3期33-35,53,共4页Fire Control Radar Technology

基　　金：装备预先研究项目(51307040501);(40405040101)

摘　　要：本文研究了采样孔径抖动对脉冲多普勒雷达调频信号检测性能的影响。介绍了孔径抖动的概念,分析了采样孔径抖动产生原因,推导得到调频信号由于孔径抖动产生的附加多普勒与孔径抖动时间成正比,会影响脉冲压缩结果,也会降低雷达改善因子,是雷达系统设计需要考虑的一个方面。Impact of sampling aperture jitter on detection performance of frequency modulation （ FM ） signal of pulse Doppler radar is studied. Concept of aperture jitter is introduced and the reasons which can cause aperture jit-ter are analyzed. It is deduced that, to FM signals, accessional Doppler caused by aperture jitter is proportional to aperture jitter time, which will affect pulse compression result, and radar improvement factor will reduced, there-fore aperture jitter is a factor which should be considered in radar system design.

关 键 词：孔径抖动 脉冲多普勒雷达 调频信号 多普勒 

分 类 号：TN957.51[电子电信—信号与信息处理]