目 录
摘 要 ..........................................................................................................................1
第一章 问题重述 ........................................................................................................5
1.1 背景介绍 .........................................................................................................5
1.1.1 基本模型 ................................................................................................................5
1.1.2 无线信
道估计 ........................................................................................................6
1.2 研究问题 .........................................................................................................7
第二章 名词解释、符号说明与基本假设 ................................................................9
2.1 名词解释 .........................................................................................................9
2.2 符号说明 .........................................................................................................9
2.3 基本假设 .......................................................................................................10
第三章 问题分析 ......................................................................................................11
3.1 问题一分析 ...................................................................................................11
3.2 问题二分析 ...................................................................................................11
3.3 问题三分析 ...................................................................................................12
第四章 快时变信道参数预测模型建立及评价 ......................................................13
4.1 CE-BEM 模型建立及评价 ...........................................................................13
4.1.1 模型建立 ..............................................................................................................13
4.1.2 模型评
价 ..............................................................................................................14
4.2 DPS-BEM 模型建立及评价 .........................................................................16
4.2.1 模型建立 ..............................................................................................................16
4.2.2 模型评
价 ..............................................................................................................17
4.3 CE-BEM 模型与 DPS-BEM 模型对比分析 ................................................19
4.3.1 准确度对比分析 ..................................................................................................19
4.3.2 算法复
杂度对比分析 ..........................................................................................20
第五章 运动速度影响研究及多径快时变信道仿真 ..............................................21
5.1 运动速度影响研究 .......................................................................................21
5.2 多径快时变信道数据仿真 ...........................................................................22
5.2.1 常用经典信道仿真模型 ......................................................................................22
5.2.2 多径快
时变信道仿真模型 ..................................................................................23
5.2.3 信道数
据仿真结果 ..............................................................................................24
5.2.4 采用信
道仿真数据验证 DPS-BEM 模型的准确度 ...........................................28
第六章 基于 DPS-BEM 模型的 SNR 与 BER 关系研究 ..............................................30
6.1 OFDM 数据传输系统 ...................................................................................30
6.1.1 OFDM 数据传输系统模型 ..................................................................................30
6.1.2 OFDM 调制与解调 ..............................................................................................31
6.1.3 基于 DPS-BEM 模型的 OFDM 系统 .................................................................31
6.1.4 插入导
频结构 ......................................................................................................32
6.1.5 信道估
计的数据模型 ..........................................................................................32
6.2 SNR 与 BER 关系分析研究 .........................................................................33
6.2.1 LS 与 LSMME 估计算法优缺点 .........................................................................34
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