Parameter estimation of MSK signals
Wenxiu Zheng · Journal of Circuits and Systems · 2011
Aiming at the real application of MSK signals' parameter estimation in the communication reconnaissance,a delay-multiplied auto-frequency-mixed signal is constructed to achieve a baseband pulse with the same symbol rate of the original signal,whose edge information can be detected by the wavelet transform to implement the symbol rate estimation;the square-law and a subset of the first-order cyclic moment are combined to implement the MSK signals' frequency estimation by detecting the cyclo-frequencies' location.These algorithms do not require any prior information of the MSK signal.Simulation proves the proposed algorithms' validity and feasibility,which can also be popularized on the GMSK signals.