摘要
在分析相位编码准连续波雷达回波遮挡问题的基础上,提出了一种长短码结合载波频率随码型同步交替切换的波形设计思路和基于回波遮挡率的波形参数计算方法。不仅能够解决近距离回波严重遮挡的问题和实现对远近目标的同时探测,而且有效地增加了信号的工作带宽和提高了发射信号波形的复杂程度,增强了信号的电子反干扰能力(electronic counter-countermeasures,ECCM),降低了信号的被截获概率。
The echo eclipse problem of a phase-coded quasi-continuous wave （quasi-CW） radar is studied from the perspective of waveform design. A waveform design based on combination of long code with short code and synchronous alternation of carrier frequency （CF） and waveform parameters calculation based on echo-eclipse-ratio are proposed, which can not only solve the severe eclipse problem of short range targets and simultaneously detect the whole range, but also expand the signal bandwidth, improve the complexity and ECCM-ability of signals and reduce the probability acquired.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2013年第3期517-521,共5页
Systems Engineering and Electronics
基金
武器装备预研基金(9140A01010411JB1401)资助课题
关键词
低截获概率雷达
准连续波
相位编码
波形设计
回波遮挡
low probability of interception （LPI） radar
quasi-continuous wave（CW）
phase-coded
waveform design
echo eclipse
