摘要
雷达对抗侦察接收机作为一种带宽有限系统,其对脉冲雷达信号存在传输失真。详细分析了脉冲前沿的失真情况,并且讨论了当脉冲幅度发生抖动以及信号被噪声污染的情况下,失真对雷达PRI测量精度带来的影响。针对3种情况进行了计算机仿真实验,验证了理论分析的正确性。最后提出了进行高精度雷达PRI测量需要克服的几个难题。
As a kind of finite bandwidth system, radar EW reconnaissance receiver will produce transmission distortion to radar signal. The distortion of radar pulse＇ s front part detailed was analyzed,and how this distortion influences the precision of radar pulse repetition interval（PRI） measurement when the radar pulses＇ amplitude change or the radar signal is polluted by noise was discussed. Then, computer simulation was implemented aiming to three kinds of cases; the correctness of theoretic analysis was validated. Lastly, several difficult problems were put forward during high precision radar PRI measurement.
出处
《现代防御技术》
北大核心
2009年第1期102-107,113,共7页
Modern Defence Technology
基金
安徽省电子制约技术重点实验室基金(2007B002005E)
关键词
脉冲重复间隔
系统带宽
触发误差
pulse repetition interval（PRI）
system bandwidth
trigger error
