Applying Median Filtering Algorithm to Nonlinear Frequency Estimation of MPSK Modulated Signals
Li Jing①②;Zhu Jiang①; Zhang Er-yang①;Shen Rong-jun③
①School of Electronic Science and Engineering N.U.D.T. Changsha 410073 China;②Xi’an Satellite Control Centre Xi’an 710043 China;③General Equipment Department of P.L.A, Beijing 100080 China
Abstract：noise, which is added to the received signals are analyzed. And the idea of applying median filtering algorithm to nonlinear frequency estimation is proposed. At the same time, Monte Carlo simulation is used to validate the idea. The results show that the Mean Square Error (MES) of frequency estimation using median filter is more perfect than using mean value filter.
2004, Vol. 26 
