无线信道中M元（D）PSK信号的多普勒相移估值与校正

Doppler Shift Estimation and Correction for M(D)PSK in Mobile Radio Channel

本文提出了一种新的无线信道中Ｍ元（Ｄ）ＰＳＫ信号的多普勒相移估值与校正方案，分析了性能，展示了该估值器和校正器的分析和计算机模拟结果，并分析了校正后的误码特性。理论分析和模拟结果表明，该方法是一种有效的多普勒相移估值和校正方法。

This paper presents a new method of estimating and correcting Doppler shift in an Mary (D)PSK receiver. The performance is discussed. The results of analysis and simulation of the Doppler shift estimation and correction are presented, and the error probibality performance of the (D)PSK receiver is evaluated for using the Doppler shift corrector. It is shown that the estimator performs excellently for M-ary (D)PSK in the presence of Doppler shift in mobile radio channel.