Arithmetic of Parameter Extraction Based on Time-frequency Analysis for PN Coded Fuze Signal
Huichang Zhao · Tance yu kongzhi xuebao · 2008
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.