Study on the Rapid Detection and the Symbol Timing Technology of MSK Communication

Abstract

In view of the rapid detection, parameter estimation and symbol (also or bit) timing of MSK communication, the paper proposes a non-cooperative detection processing method after doing some analysis on the characteristic of the delay-multiply signal of MSK communication. With the proposed method, the non-cooperative receiver may achieve the feature extraction of the system working frequency, symbol rate and symbol timing regarded, only by doing delay multiplication and filter processing on the received signals; And the corresponding parameter estimation and the timing can be easily achieved. Especially, the proposed method does not need any a priori information, it can fit the need of low signal-to-noise ratio of non-cooperative communication detection.