近海面蒸发波导理论模型与特性

定　　价：128 元

丛书名：海洋声学与信息感知丛书

• 作者：杨坤德 等
• 出版时间：2022/12/1
• ISBN：9787121445941
• 出 版 社：电子工业出版社

• 中图法分类：TN011 
• 页码：288
• 版次：01
• 开本：16开

内容简介

本书系统地介绍了近海面蒸发波导的理论模型与特性。全书共12 章，内容包括绪论、蒸发波导的基本概念、 蒸发波导预测模型、蒸发波导高度时空分布规律、蒸发波导环境特性实时监测及短期预报方法、蒸发波导与海水蒸发量的关系、蒸发波导中的电磁波传播模型、海洋蒸发波导中的电磁波传播特性、蒸发波导数据传输系统、蒸发波导反演方法、基于BP 神经网络算法的蒸发波导预测模型、蒸发波导环境特性数据库软件。本书融入了作者团队10 余年来在蒸发波导方面的科研成果，纳入了作者团队在国内外重要期刊上发表的20 余篇论文，同时也参考了少量国内外相关的研究成果。

作者介绍

杨坤德博士，西北工业大学教授、博士生导师，现任“海洋声学信息感知”工信部重点实验室主任、“水下信息与控制”国家级重点实验室副主任、航海学院科研副院长。主要从事水声工程的教学与科研，研究方向包括海洋声学、水声信号与信息处理、水声系统设计与集成等。

目 录

目 录
第1 章 绪论 ································································································.1
1.1 蒸发波导的研究背景与意义 ··································································.1
1.2 蒸发波导的研究历史和现状 ··································································.5
1.2.1 蒸发波导修正折射率剖面的测量方法和预测模型研究 ························.7
1.2.2 蒸发波导高度时空分布规律研究 ·················································.10
1.2.3 蒸发波导环境特性实时监测及短期预报方法研究 ····························.12
1.2.4 蒸发波导中的电磁波传播理论和传播模型研究 ·······························.14
1.2.5 蒸发波导对船载电子系统的应用影响研究 ·····································.16
1.3 本书的主要内容 ···············································································.16
本章参考文献 ·························································································.18
第2 章 蒸发波导的基本概念 ·········································································.24
2.1 对流层折射 ·····················································································.24
2.1.1 球面分层大气中的折射定律 ·······················································.24
2.1.2 射线的曲率半径 ······································································.25
2.1.3 折射的分类 ············································································.26
2.1.4 修正折射率 ············································································.28
2.2 对流层大气波导的分类 ······································································.29
本章小结 ·······························································································.30
本章参考文献 ·························································································.30
第3 章 蒸发波导预测模型 ············································································.31
3.1 大气运动的基本概念 ·········································································.31
3.1.1 大气运动的基本方程 ································································.31
3.1.2 大气中尺度环流 ······································································.31
3.1.3 莫宁-奥布霍夫相似理论 ····························································.32
3.2 蒸发波导预测模型——PJ 模型 ····························································.33
3.2.1 PJ 模型的基本理论 ···································································.33
3.2.2 计算机仿真结果 ······································································.35
3.3 蒸发波导预测模型——伪折射率模型 ···················································.37
3.3.1 伪折射率模型的基本理论 ··························································.37
3.3.2 计算机仿真结果 ······································································.40
3.4 蒸发波导预测模型——NPS 模型 ·························································.41
3.4.1 NPS 模型 ···············································································.42
3.4.2 NPS 模型在稳定条件下的改进 ····················································.44
3.5 蒸发波导高度对气象要素的敏感性分析 ················································.46
3.6 冷空气条件下不同蒸发波导预测模型的对比 ··········································.48
3.6.1 4 种蒸发波导预测模型的对比 ·····················································.49
3.6.2 冷空气条件下的电磁波传播实验 ·················································.56
本章小结 ·······························································································.63
本章参考文献 ·························································································.63
第4 章 蒸发波导高度时空分布规律 ································································.65
4.1 蒸发波导统计分析的方法与数据源 ······················································.65
4.2 世界海洋蒸发波导高度的时空分布规律及其成因分析 ······························.70
4.2.1 世界海洋蒸发波导高度的时空分布规律 ········································.70
4.2.2 世界海洋蒸发波导高度的时空分布规律的成因分析 ·························.74
4.3 西太平洋蒸发波导高度的时空分布规律及其成因分析 ······························.77
4.3.1 西太平洋蒸发波导高度的时空分布规律 ········································.77
4.3.2 西太平洋蒸发波导高度的时空分布规律的成因分析 ·························.82
4.4 中国南海蒸发波导高度的时空分布规律及其成因分析 ······························.87
4.4.1 中国南海蒸发波导高度的时空分布规律 ········································.88
4.4.2 中国南海蒸发波导高度的时空分布规律的成因分析 ·························.94
4.5 亚丁湾蒸发波导高度的时空分布规律及其成因分析 ·································.96
4.5.1 亚丁湾蒸发波导高度的时空分布规律 ···········································.97
4.5.2 亚丁湾蒸发波导高度的时空分布规律的成因分析 ···························.104
4.6 蒸发波导高度时空分布规律的实验验证 ···············································.106
4.6.1 海上实验概况 ········································································.106
4.6.2 海上实验结果 ········································································.107
本章小结 ······························································································.108
本章参考文献 ························································································.109
第5 章 蒸发波导环境特性实时监测及短期预报方法 ·········································.110
5.1 蒸发波导环境特性实时监测方法 ························································.110
5.1.1 蒸发波导环境特性实时监测方法概述 ··········································.110
5.1.2 船载气象观测系统的组成及其测量数据的可靠性分析 ·····················.111
5.1.3 蒸发波导预测模型对气象参数误差敏感性分析 ······························.116
5.1.4 传感器类型选择及其安装位置建议 ·············································.122
5.2 蒸发波导环境特性短期预报方法 ························································.123
5.2.1 基于GFS 数据的蒸发波导环境特性短期预报方法 ··························.123
5.2.2 基于WRF 模型的蒸发波导环境特性短期预报方法 ·························.126
本章小结 ······························································································.131
本章参考文献 ························································································.131
第6 章 蒸发波导与海水蒸发量的关系 ···························································.132
6.1 概述 ·····························································································.132
6.2 数据和方法 ····················································································.133
6.2.1 数据·····················································································.133
6.2.2 数据处理与分析方法 ·······························································.135
6.3 蒸发波导高度和蒸发量关系的定性分析 ···············································.135
6.3.1 蒸发波导高度和蒸发量时空演变的基本特征 ·································.135
6.3.2 蒸发波导高度和蒸发量经验正交函数分析结果 ······························.137
6.3.3 海面风速和海水表面温度的相对影响分析 ····································.140
6.4 通过蒸发量定量估算蒸发波导高度 ·····················································.144
6.4.1 气海环境因素的敏感性分析 ······················································.144
6.4.2 定量关系的统计分析 ·······························································.146
本章小结 ······························································································.150
本章参考文献 ························································································.150
第7 章 蒸发波导中的电磁波传播模型 ···························································.153
7.1 射线追踪模型 ·················································································.153
7.1.1 射线追踪模型简介 ··································································.153
7.1.2 射线及几何光学的基本原理 ······················································.153
7.1.3 射线追踪模型的推导 ·······························································.154
7.2 抛物方程模型 ·················································································.156
7.2.1 抛物方程简介 ········································································.156
7.2.2 抛物方程模型的推导 ·······························································.156
7.2.3 抛物方程的解法 ·····································································.159
7.2.4 边界条件、初始场及电磁波传播路径损失 ····································.165
7.3 混合模型 ·······················································································.168
本章小结 ······························································································.168
本章参考文献 ························································································.169
第8 章 海洋蒸发波导中的电磁波传播特性 ·····················································.170
8.1 水平均匀蒸发波导中的电磁波传播仿真结果 ·········································.170
8.1.1 射线追踪模型下水平均匀蒸发波导中的电磁波传播仿真结果 ············.170
8.1.2 抛物方程模型下水平均匀蒸发波导中的电磁波传播仿真结果 ············.170
8.2 水平不均匀蒸发波导对电磁波传播的影响 ············································.173
8.2.1 水平不均匀蒸发波导特性分析 ···················································.173
8.2.2 仿真计算 ··············································································.175
8.2.3 海上实验结果及分析 ·······························································.180
8.3 海上障碍物对蒸发波导中的电磁波传播的影响 ······································.184
8.3.1 障碍物模型 ···········································································.184
8.3.2 仿真计算 ··············································································.185
8.3.3 海上实验结果及分析 ·······························································.190
8.4 海面粗糙度对蒸发波导中的电磁波超视距传播的影响 ·····························.194
8.4.1 海面粗糙度的计算方法 ····························································.194
8.4.2 仿真计算结果及分析 ·······························································.195
8.5 海洋蒸发波导信道的多径效应分析及实验 ············································.197
8.5.1 模型的理论和方法 ··································································.198
8.5.2 仿真条件计算结果及分析 ·························································.198
8.5.3 实验数据及解释 ·····································································.201
8.6 蒸发波导信道的频率响应 ··································································.205
8.6.1 频率响应的计算方法 ·······························································.205
8.6.2 仿真计算 ··············································································.206
8.6.3 海上实验及结果分析 ·······························································.210
本章小结 ······························································································.214
本章参考文献 ························································································.215
第9 章 蒸发波导数据传输系统 ····································································.217
9.1 蒸发波导数据传输系统的辅助决策方法 ···············································.217
9.1.1 蒸发波导信道的路径损失 ·························································.218
9.1.2 通信系统能力的计算 ·······························································.219
9.1.3 辅助决策方法的确定 ·······························································.220
9.2 蒸发波导数据传输系统的参数优化 ·····················································.221
9.2.1 最优天线高度 ········································································.221
9.2.2 最优工作频率 ········································································.223
9.3 蒸发波导数据传输系统的可通概率 ·····················································.224
9.3.1 可通概率的计算方法 ·······························································.224
9.3.2 可通概率计算结果 ··································································.225
9.4 海上实验验证 ·················································································.229
9.4.1 实验概况 ··············································································.229
9.4.2 实验验证结果 ········································································.230
本章小结 ······························································································.231
第10 章 蒸发波导反演方法 ·········································································.232
10.1 蒸发波导反演的概况 ······································································.232
10.2 利用电磁波传播路径损失反演蒸发波导修正折射率剖面 ·························.234
10.2.1 利用基于地形抛物方程模型得到的路径损失反演蒸发波导修正折射率
剖面的方法 ··········································································.234
10.2.2 TPEM 模型对电磁波传播路径损失的数值模拟及反演仿真 ··············.235
10.3 利用雷达海杂波反演蒸发波导修正折射率剖面 ·····································.239
10.3.1 反演步骤及过程 ····································································.239
10.3.2 雷达海杂波相关模型和功率求解 ···············································.241
10.3.3 正向模型的数值模拟及反演仿真 ···············································.246
本章小结 ······························································································.248
本章参考文献 ························································································.249
第11 章 基于BP 神经网络算法的蒸发波导预测模型 ··········································.250
11.1 基于BP 神经网络算法的蒸发波导建模基本原理 ···································.250
11.1.1 BP 神经网络算法 ···································································.250
11.1.2 训练及验证数据 ····································································.253
11.1.3 训练次数对均方根误差的影响 ··················································.254
11.2 稳定与不稳定条件下的训练结果对蒸发波导预测模型的影响 ···················.259
11.2.1 不稳定条件下的训练结果及分析 ···············································.260
11.2.2 稳定条件下的训练结果及分析 ··················································.263
本章小结 ······························································································.267
本章参考文献 ························································································.267
第12 章 蒸发波导环境数据库软件 ·······························································.268
12.1 软件设计的总体思路 ······································································.268
12.2 海区网格选择功能模块 ···································································.268
12.3 海区网格蒸发波导特性功能模块 ·······················································.270
12.4 全球蒸发波导特性功能模块 ·····························································.272
12.5 西太平洋蒸发波导特性功能模块 ·······················································.274
12.6 蒸发波导剖面预测功能模块 ·····························································.275
本章小结 ······························································································.276