The Detection And Estimation Of Carrier Frequency,Chip Width And Amplitude Of DS Signal Based On Cyclic Spectrum Theory

The Spread Spectrum technology has got wide use in fields such as military and civil communications,remote sensing and orientation because of its strong anti-interference,LPI,good multi-access ability and excellent secrecy.Thus it is very difficult to detect DS/SS and estimate its parameters because of its features we mentioned above.This paper presents a method that makes use of cyclic spectrum correlation technology to detect DS/SS and estimate its parameters. Cyclic spectrum correlation technology is used to analyze the cyclostational signal.However,DS/SS has cyclostation,so we can use cyclic spectrum correlation technology to detect DS/SS and estimate its parameters.This paper studies the detection and parameters estimation of DS/SS.Cyclic period chat spectrum estimation is used on parameters estimation such as carrier frequency,chip width and amplitude.The paper gives the simulation with MATLAB on the base of method mentioned above.This paper effectively proves the validity of cyclic spectrum correlation technology ,thus offers a valid method to detect DS/SS.Many papers indicate that cyclic spectrum correlation technology is. a very excellent method to detect DS/SS.