A SNR-insensitive Doppler shift estimator in wireless communications

Jingyu Hua, L. Meng, Xiaojian Xu, Zhijiang Xu, Dongming Wang
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Abstract

This paper presents a signal-to-noise ratio (SNR) insensitive Doppler shift estimator based on the square envelope autocorrelation function (SEACF) of mobile propagation channels, where an iterative processing is employed to eliminate the approximation error and the effects of additive noise. Both theory and simulation show a good SNR-insensitive performance in a wide range of velocities and SNRs.
无线通信中信噪比不敏感的多普勒频移估计器
提出了一种基于移动传播信道平方包络自相关函数(SEACF)的信噪比不敏感多普勒频移估计方法,采用迭代处理方法消除了近似误差和加性噪声的影响。理论和仿真结果均表明,该方法在较宽的速度和信噪比范围内具有良好的信噪比不敏感性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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