伪码—载频体制侦察信号的谱相关函数研究

Research on Spectral Correlation Function of Reconnaissance Signal of PN Code-Carrier FM

研究了伪码—载波调频信号的谱相关函数,具体针对伪随机二相编码信号及其与正弦调频和线性调频复合信号进行了研究。从谱相关函数(SCF)和模糊函数(AF)的关系出发,利用平稳随机过程的线性周期时变变换定理,详细推导了3种复合信号的谱相关函数表达式,为进一步通过谱相关方法对伪码—载波调频信号的调制分类和参数识别奠定了理论基础。

The spectral correlation function of PN code-carrier FM is studied,especially for PRBC,SFM-PRBC and LFM-PRBC.Based on the relation between SCF and AF,and LPTV theory of stationary stochastic process,in detail, the SCF of the above three compound signals is derived respectively.All of those establish theoretic foundation for the signal recognition and parameter estimation of PN code-carrier FM based on the SC method.