Research On The Technology Of MSK/DS Signal Detection Based On The Cyclic Correlation

In recent years detection of non-cooperative signal has been the research focus in communication field neither in military electronic warfare or civil illegal radio interception.While the Low Probability of Interception(LPI)signals detection has been the focus and a difficulty in the detection of non-cooperation.With the development of LPI signal in recent years,the detection of non-cooperative signals are facing increasingly severe situation.Direct Sequence Spread Spectrum(DSSS,DS)as an important form of signal representation often combined with Minimum Shift Keying(MSK)in application.The realization of noncooperative detection of MSK/DS signals is of great significance.The current non-cooperative signal detection algorithm theory has been relatively mature,but its actual application is less concerned.This paper realizes the design of cyclic spectrum experimental verification platform detection and parameter estimation of MSK/DS signals in Non-Cooperative Communication.Firstly,MSK/DS signal modeling is completed,and the cyclic spectrum is selected as the method of MSK/DS signal detection and parameter estimation.The basic principle of MSK signal and Direct Sequence Spread Spectrum signal and the definition of cyclic spectrum are introduced.The detection and parameter estimation principle of the MSK/DS signal to make use of cyclic spectrum is mainly introduced.Secondly,the implementation of detection and parameter estimation of MSK/DS signal using the cycle spectrum is introduced,and the simulation software has carried on.Influence on the performance of the carrier frequency,symbol rate,signal-to-noise ratio and the resolution are studied.The feasibility of the algorithm is analyzed.Finally,the digital scheme for the detection and parameter estimation of MSK/DS signal using the cycle spectrum is given,the design of MSK/DS signal detection experiment platform of non-cooperation is completed.