The Spectral Correlation Theory With Applications To Communication Signal Analysis

Many man-made signals in c ornxnuni cati o ns,rad ar, s onar and o th er fi l ed s exhib itcyclostationary.Especially in many kinds of conununication signals,most of them have theproperty.A new spectral correlation concept fOr cyclostationary process is ifltroduced,and the wayto calculate the spectrum correlation function for conunon modulated signals is discussed.Therelationships and prefOrmance of thIee detectorg are evaluated and compared.These includethe radiometer,the cyclic detector and the maximum SNR spectrum-line regenerator forspectrum line frequencies equal to the chip rate and the double carrier frequency.It is concludethat the spectTum line regenerator can outPeform radiometer by a wide margin.At last,themethold to extract modulation paraxneters form spectrum correlation functions are expound.