| 数字蜂房移动通信信道的一种模型 |
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| 引用本文： | 胡爱群 何振亚. 数字蜂房移动通信信道的一种模型[J]. 东南大学学报(自然科学版), 1994, 24(1): 25-30 |
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| 作者姓名： | 胡爱群 何振亚 |
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| 作者单位： | 东南大学无线电工程系 |
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| 基金项目： | 江苏省科委基础应用研究课题，国家教委博士点基金 |
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| 摘 要： | 根据数字蜂房移动通信的信号传输过程建立了一种时变的ＦＩＲ信道模型。在此模型基础上，研究了一种新的自适应均衡方法。它基于系统辨识原理，采用改进的归一化变步长最小均方误差（ＭＮＶＳ ＬＭＳ）算法，克服由于多径效应引起的码间干扰（ＩＳＩ）。计算机模拟实验表明，本文提出的ＭＮＶＳ算法其跟踪性能明显优于ＮＶＳ和传统的ＬＭＳ算法，且运算量小，具有良好的实用性。
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| 关 键 词： | 数字通信 移动通信 信道模型 |
A Channel Model and Its New Adaptive Equalization Methodof Digital Cellular Mobile Communication |
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| Hu Aiqun,He Zhenya,Huang Jian. A Channel Model and Its New Adaptive Equalization Methodof Digital Cellular Mobile Communication[J]. Journal of Southeast University(Natural Science Edition), 1994, 24(1): 25-30 |
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| Authors: | Hu Aiqun He Zhenya Huang Jian |
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| Abstract: | A time variant FIR channel model in terms of the process of digital cellular mobilecommunication is built,and a new equalization method on this model is presented. Based on thesystem identification principle,it adopts the Modified Normalized Variable Step(MNVS)Least MeanSquare (LMS)algorithm to reduce intersymbol interference(ISI)due to multipath.Simulation bycomputer indicates that the MNVS algorithm has better tracing ability than the NVS and theconventional LMS algorithms with small caiculation complexity and good practicability. |
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| Keywords: | digital communication mobile communication channel models adaptive equalization |
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