基于梯度搜索技术的M-QAM信号直流偏置估计与补偿

2014 24th International Crimean Conference Microwave & Telecommunication Technology Pub Date : 2014-11-20 DOI:10.1109/CRMICO.2014.6959371

A. Pestryakov, E. Khasianova

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引用次数: 0

摘要

本文探讨了利用梯度搜索技术补偿正交变换器输出端的直流偏置的可能性。假定I/Q不平衡的初步补偿。为了分析该方法在接收M-QAM调制信号时的使用情况，以及校正前后QAM-4、-16、-32的频谱，本文在MATLAB SIMULINK中建立了解调器的仿真模型。

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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Gradient-based search technique using for M-QAM signals' DC-offset estimation and compensation

The possibility of using a gradient search technique to compensate the DC offset at the output of the quadrature converter is investigated in this research. The preliminary compensation of I/Q imbalance is assumed. The results of the work are a simulation model of a demodulator created in MATLAB SIMULINK in order to analyze the use of this method when receiving signals with M-QAM modulation, and frequency spectrum before and after calibration for QAM-4, -16, -32.

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2014 24th International Crimean Conference Microwave & Telecommunication Technology

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