摘要
伪码引信信号特征参数提取是对伪码引信进行有效欺骗性干扰的前提。需提取的伪码引信信号特征参数包括:引信载频、伪码码元宽度、伪码周期和码型。为提取上述参数,从时频域出发,采用的方法为赵-阿特拉斯-马科斯时频分析法(ZAM分布)。分析了伪码引信信号的ZAM分布,结合伪码特征,基于ZAM分布图提出了信号特征参数提取算法。仿真分析表明,该算法能有效提取伪码引信信号的特征参数。
Extracting the feature parameters of PN coded fuze is the precondition of jamming fraudulently. The feature parameters include carrier frequency, PN code width,PN code period and code type. To extract parameters,time-frequency analysis is adopted. The method of time-frequency analysis is Zhao-Atlas-Marks time frequency analysis（ZAM distribution）. The ZAM distribution of PN coded fuze signal is analyzed. According to the feature of PN code, the arithmetic of feature parameter extraction based on ZAM distribution is presented. It is found by simulation that all of the feature parameters of fuze signal can be extracted effectively by the above method.
出处
《探测与控制学报》
CSCD
北大核心
2008年第2期18-22,26,共6页
Journal of Detection & Control
基金
国防重点预研项目资助(51305060101)
关键词
伪码引信
ZAM分布
特征参数提取
算法
PN coded fuze
ZAM distribution
extraction of feature parameters
arithmetic
