基于牛顿多项式的OFDM系统多普勒扩频估计

2008 18th International Conference Radioelektronika Pub Date : 2008-04-24 DOI:10.1109/RADIOELEK.2008.4542713

A. Ali, A. Balalem, T. Khanzada, J. Macháč, A. Omar

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引用次数: 0

摘要

提出了一种快速时变信道中OFDM系统的多普勒扩频估计方法。该方法通过考虑五个连续OFDM符号上的几个牛顿多项式来近似信道的时间变化。在频域中，从近似信道矩阵的非对角线估计多普勒扩频。

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Doppler spread estimation for OFDM systems using Newton polynomials

This paper presents a method of estimating the Doppler spread for OFDM systems in rapidly time-variant channels. The method utilizes an approximation of the time variation of the channel by considering a few Newton polynomials over five successive OFDM symbols. Doppler spread is estimated in the frequency domain from the off- diagonals of the approximated channel matrix.

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2008 18th International Conference Radioelektronika

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