An Assessment of Modulation Classifiers for ISI Channels

LUO Li-chun

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An Assessment of Modulation Classifiers for ISI Channels

更新时间：2025-07-16

- An Assessment of Modulation Classifiers for ISI Channels
- Acta Electronica Sinica Vol. 31, Issue 7, Pages: 1070-1073(2003)
- 作者机构：
  
  1. 北京947信箱,北京,100083
  2. 北京947信箱北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929
- Published：2003
- 稿件说明：
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LUO Li-chun. An Assessment of Modulation Classifiers for ISI Channels[J]. Acta Electronica Sinica, 2003, 31(7): 1070-1073.
DOI：

LUO Li-chun. An Assessment of Modulation Classifiers for ISI Channels[J]. Acta Electronica Sinica, 2003, 31(7): 1070-1073. DOI：

摘要

带限信道及ISI对数字调制信号的调制分类有着严重的不利影响.针对非ISI信道环境的qLLR的调制分类器对ISI信道的BPSK/QPSK调制分类仍然有效.GLRT调制分类器是以GLRT为基本途径

借助Viterbi极大似然译码算法估计调制码符号序列

并用PSP估计信道ISI的影响.改进的鲁棒Viterbi算法能进一步抑制ISI的影响.蒙特卡罗仿真表明

它们在ISI信道中具有十分优良的分类性能.

Abstract

Band-Limited channels have very bad effects on modulation classification of digital modulated signals.qLLR based modulation classifier is valid for classification of BPSK/QPSK signals in ISI Channel.GLRT based classifier makes use of Viterbi algorithm in maximum likelihood estimation of modulation symbol sequences

and PSP in estimating the effects of ISI on the sequence.Simulations show that they can achieve a very good classification performance in ISI channels.

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