A Study of Near-Maximum-Likelihood Estimation Technique for HF Channels

张辉; 赵绍颖; 李越红

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A Study of Near-Maximum-Likelihood Estimation Technique for HF Channels

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- A Study of Near-Maximum-Likelihood Estimation Technique for HF Channels
- Acta Electronica Sinica Issue 9, (1995)
- 作者机构：
  
  西安电子科技大学通信工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.23
- Published：1995
- 稿件说明：
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[1]张辉,赵绍颖,李越红.HF信道准最大似然序列检测技术的研究[J].电子学报,1995(09):112-114.

张辉, 赵绍颖, 李越红. A Study of Near-Maximum-Likelihood Estimation Technique for HF Channels[J]. Acta Electronica Sinica, 1995, (9).
[1]张辉,赵绍颖,李越红.HF信道准最大似然序列检测技术的研究[J].电子学报,1995(09):112-114. DOI：

张辉, 赵绍颖, 李越红. A Study of Near-Maximum-Likelihood Estimation Technique for HF Channels[J]. Acta Electronica Sinica, 1995, (9). DOI：

摘要

本文在研究用于克服码间串扰的最大似然序列检测技术的基础上，提出了一种准最大似然序列检测方案，用于短波话带串行体制数传ＭＯＤＥＭ．该方案中采用预判决反馈减小信道状态有效分量的数目和简化维特比算法等方法，减小了运算量．模拟分析表明，该方案的误码性能优于平方根卡尔曼算法的判决反馈均衡器方案。

Abstract

On the basis of the study of the maximum- likelihood estimation technique which elimilates the intersymbol interference

this paper presents a near-maximum-likelihcod estimation scheme which is used in the voiceband serial data transmission system. The scheme employs predecision feedback to reduce the number of the effective components of channel states and the simplified Viterbi algorithm

thus reducing the amount of operation. Simulation analysis indicates that the error performance of this scheme is superior to that of the decision feedback equalizer with the square root Kalman algorithm.

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