A nonlinear filtering algorithm and achievement based on frequency estimation of MPSK modulated signals
Jing Li, Jiang Miao Zhu · Journal of Xidian University · 2004
Based on the nonlinear frequency algorithm, the nonlinear transform of white Gaussian noise, which is added to the received signals are analyzed. And the idea of applying nonlinear filtering (the 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 a median filter is better than that by using a mean value filter.