OFDM信号的自适应解调

2016 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2016-10-01 DOI:10.1109/ISPACS.2016.7824767

Anchalee Manosueb, J. Koseeyaporn, P. Wardkein

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引用次数: 2

摘要

提出了一种基于LMS自适应滤波器的OFDM解调方法。该方法不使用快速傅立叶变换，直接从参考信号的幅值重构数据符号，可应用于实时系统。此外，适当设置初始权值可以提高自适应滤波器的收敛速度。该技术将应用于BASK-OFDM、BPSK-OFDM和QAM-OFDM解调中。仿真结果表明，该方法可用于OFDM解调的实时处理。

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An adaptive demodulation for OFDM signal

This paper presents a novel method for OFDM demodulation based on LMS adaptive filter. In this proposed method, data symbol is reconstructed from amplitude of reference signal without using fast Fourier transform and thus this method can be applied for real time system. In addition, the convergence rate of adaptive filter can be promoted by using the proper initial weights. The proposed technique will be applied for BASK-OFDM, BPSK-OFDM and QAM-OFDM demodulation. The obtained simulation results of the proposed method compared to the conventional scheme show that the proposed technique can be applied for real time processing of OFDM demodulation.

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来源期刊

2016 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)

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