Correlated Interference Response Model And Performance Analysis Of Non-Coherent Communication Receiver

The traditional interference to achieve "effective interference" must be based on the premise of using high power to suppress the signal power of communication receiver,so it cannot meet the current requirements for high-performance interference and cognitively accurate interference.Correlated interference,as a system-based smart interference,is an interference that uses the same or similar waveforms of the communication system to interfere with the communication receiver.Since it utilizes the high correlation between interference and signal,it can use smaller interference power to achieve better interference effect,so correlated interference is a kind of efficient interference that can be applied to new cognitive electronic warfare.In particular,the "correlated interference" in this article refers to the interferer use a type of interference similar to signal to cause effective interference,knowing the various parameters of the signal.This artical takes binary random phase signals as the research object,focusing on the correlated interference of non-coherent receivers in the AWGN channel environment.The mathematical model is constructed of AWGN channel with correlated interference for random phase signals.Communication response and interference response of such signals are studied,and on this basis,general formula of the theoretical bit error rate is derived.Firstly,this paper starts with the structure of the binary random signal noncoherent receiver.Through the interference correlation coefficient,the correlation between the correlated interference and the signal is connected with the interference effect,and the general formula of the noncoherent reception error probability under the correlated interference is obtained.Secondly,2FSK non-coherent receiver and 2DPSK differential coherent receiver are taken as examples,derives the theoretical bit error rate of common various correlated interference when interfering with two non-coherent receivers and verifies it with simulation results.Finally,in actual situations,when correlated interference is applied,random phase deviation or frequency deviation may occur between interference and signal.This paper presents the corrected bit error rate of correlated interference in these two cases,and discusses the impact of the two cases on the correlated interference effect.