摘要
研究了一种由线性调频与二相码组合而成的雷达脉冲压缩信号 ,给出了这类信号的表达式。文中提出了 5点滑窗法线性调频旁瓣抑制滤波器 ,同时 ,针对LFM BC雷达信号旁瓣抑制中需要进行双加权的问题 ,设计了一种基于 5点滑窗法的旁瓣抑制加权网络。仿真实验证明 ,这种新的旁瓣抑制方法可以完成LFM BC雷达信号的旁瓣抑制 ,同时降低了LFM BC雷达信号脉压系统中加权滤波网络设计的复杂性。
An form of radar pulse-compression signal which composed of linear frequency modulation and bi-phase coding is studied in this paper.Expression of this kind of signal is given.This paper presents 5-point sliding window LFM side lobe suppression filter,and aiming at the requirement of double weighting in side lobe suppression of LFM-BC signal,this paper designes a kind of side lobe suppression weighting net based on 5-point sliding window.By means of simulating test,it is proved that this new method could complete the side lobe suppression of LFM-BC signal and the complexity of designing weighting filter net is depressed.
出处
《舰船电子对抗》
2004年第5期17-20,共4页
Shipboard Electronic Countermeasure
关键词
线性调频
二相编码
脉冲压缩
旁瓣抑制
延时线加权网络
linear frequency modulation
bi-phase coding
pulse compression
side lobe suppression
delay line weighing net
