基于MPSK信号频偏估计的非线性滤波算法

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A nonlinear filtering algorithm and achievement based on frequency estimation of MPSK modulated signals

LI Jing1,2;ZHU Jiang1;ZHANG Er-yang1;SHEN Rong-jun3

(1. School of Electronic Science and Eng., N.U.D.T., Changsha 410073, China;
2. Xi'an Satellite Control Centre, Xi'an 710043, China;
3. General Equipment Dept. of PLA, Beijing 100080, China)

Received:1900-01-01 Revised:1900-01-01 Online:2004-06-20 Published:2004-06-20

Abstract

Abstract: 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.

Key words: nonlinear filtering algorithm, carrier estimation, MPSK modulated signal

CLC Number:

TN911

LI Jing1;2;ZHU Jiang1;ZHANG Er-yang1;SHEN Rong-jun3.

A nonlinear filtering algorithm and achievement based on frequency estimation of MPSK modulated signals

[J].J4, 2004, 31(3): 473-475.

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A nonlinear filtering algorithm and achievement based on frequency estimation of MPSK modulated signals

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