《艦船尾跡的電磁成像機理及特徵提取技術》是電子工業出版社出版的圖書，作者是張民,王樂天,江旺強 等。
基本介紹
- 中文名：艦船尾跡的電磁成像機理及特徵提取技術
- 作者：張民,王樂天,江旺強 等
- 出版時間：2023年7月
- 出版社：電子工業出版社
- 頁數：258 頁
- 字數：312千字
- ISBN：9787121458279
- 開本：16 開
內容簡介,圖書目錄,
內容簡介
艦船尾跡是真實海場景中不可缺失的部分，是識別艦船目標的類型、位置、航速和航向信息等特徵的重要途徑。 本書共8 章，詳細闡述了Kelvin 尾跡、含湍流遠場綜合尾跡、泡沫流尾跡、近場尾跡、內波尾跡和水下運動目標尾跡的幾何建模、電磁散射建模和合成孔徑雷達（SAR）成像仿真技術；結合計算流體力學（CFD）仿真技術和電磁散射的調製譜最佳化面元模型，將仿真模型套用於艦船尾跡的SAR 圖像特徵檢測、基於尾跡的艦船目標參數反演和浮標目標隱蔽最佳化設計工程中。本書構建了一套基於艦船尾跡流場的電磁散射特性分析和雷達圖像仿真的系統理論和套用方法，使讀者能夠通過本書的學習掌握運動艦船尾跡的電磁散射機理和成像仿真方法，靈活解決實際工程問題。 本書適合從事雷達設計與評估、微波遙感、雷達目標與環境特性、電磁成像算法與圖像理解的相關科研工作人員閱讀，也可作為高等學校相關專業研究生的教學參考用書。
圖書目錄
第1 章 艦船尾跡電磁散射的理論基礎·········································001
1.1 海浪和艦船尾跡的基本概念········································002
1.1.1 海浪仿真·······················································002
1.1.2 典型海譜函式·················································005
1.1.3 艦船尾跡的基本類型·······································.011
1.2 海面與艦船尾跡電磁散射的計算基礎····························017
1.2.1 Bragg 散射理論···············································018
1.2.2 半確定面元散射模型········································020
1.2.3 海面散射場分析··············································023
1.3 本章小結································································026
參考文獻······································································027
第2 章 Kelvin 尾跡······························································031
2.1 Kelvin 尾跡流場模型·················································032
2.1.1 船行波基本特徵··············································032
2.1.2 Kelvin 尾跡波高場···········································033
2.1.3 Kelvin 尾跡仿真結果········································035
2.2 海面調製理論··························································037
2.2.1 海浪波的流體力學描述·····································037
2.2.2 傾斜調製·······················································038
2.2.3 流體力學調製·················································039
2.2.4 速度聚束調製·················································040
2.2.5 三種調製作用對比···········································041
2.3 速度聚束成像模型與尾跡成像仿真·······························043
2.3.1 實孔徑雷達和合成孔徑雷達·······························043
2.3.2 Kelvin 尾跡SAR 成像仿真·································045
2.3.3 Kelvin 尾跡SAR 圖像特性分析···························048
2.3.4 Kelvin 尾跡中的窄尾跡分量·······························057
2.4 本章小結································································061
參考文獻······································································062
第3 章 湍流遠場綜合尾跡·······················································063
3.1 遠場湍流尾跡的流場仿真···········································064
3.1.1 CFD 理論基礎·················································065
3.1.2 基於CFD 理論的遠場尾跡仿真···························068
3.2 調製譜面元散射模型·················································069
3.2.1 調製譜方程····················································070
3.2.2 調製譜源項····················································071
3.2.3 調製譜的求解·················································075
3.2.4 基於調製譜的海面散射·····································078
3.3 湍流尾跡散射場分析·················································079
3.3.1 尾跡的背景波調製作用·····································079
3.3.2 遠場綜合尾跡SAR 成像····································083
3.4 本章小結································································087
參考文獻······································································087
第4 章 泡沫流尾跡·······························································090
4.1 泡沫流尾跡的理論基礎··············································090
4.1.1 泡沫層反射率·················································090
4.1.2 泡沫覆蓋率····················································093
4.2 泡沫海面的體散射統計模型········································095
4.2.1 球形氣泡的電磁散射特性··································095
4.2.2 散射矩陣·······················································099
4.2.3 泡沫海面體散射的VRT 模型······························104
4.3 泡沫流尾跡的相干散射場模型····································.110
4.3.1 泡沫層的相干散射場模型·································.110
4.3.2 仿真結果與分析·············································.115
4.4 本章小結································································120
參考文獻······································································121
第5 章 近場尾跡··································································123
5.1 近場尾跡的幾何建模·················································124
5.1.1 尾跡流場仿真設定···········································125
5.1.2 近場尾跡仿真結果···········································126
5.2 近場尾跡電磁散射的算法···········································129
5.2.1 格線轉換和消隱處理········································129
5.2.2 疊代物理光學法（IPO）····································131
5.2.3 疊代最佳化技術·················································133
5.3 近場尾跡的電磁散射特性分析·····································134
5.3.1 FBIPO 算法驗證與分析·····································134
5.3.2 近場尾跡電磁散射總場分析·······························136
5.3.3 近場尾跡電磁散射場分布··································139
5.4 本章小結································································143
參考文獻······································································143
第6 章 內波尾跡··································································146
6.1 內波尾跡流場特性····················································146
6.1.1 內波尾跡仿真方法···········································146
6.1.2 離散內波層的波動···········································147
6.1.3 擴散內波層的波動···········································151
6.1.4 內波尾跡波高反演···········································156
6.1.5 內波尾跡仿真結果···········································158
6.2 內波尾跡電磁散射計算··············································160
6.2.1 小斜率近似模型··············································160
6.2.2 內波尾跡對海面電磁散射係數的影響····················163
6.2.3 內波尾跡的電磁散射分布與SAR 成像··················172
6.3 本章小節································································182
參考文獻······································································183
第7 章 水下運動目標尾跡·······················································185
7.1 水下運動目標尾跡流場仿真········································186
7.1.1 均勻流下的水下運動目標尾跡····························186
7.1.2 內波尾跡與海水密度分層··································193
7.1.3 任意分層條件下的水下運動目標尾跡····················196
7.2 水下運動目標尾跡SAR 成像仿真·································198
7.2.1 水下運動目標尾跡散射場分布····························198
7.2.2 水下運動目標尾跡SAR 成像······························200
7.3 本章小結································································209
參考文獻······································································209
第8 章 艦船尾跡檢測與特徵提取··············································212
8.1 艦船尾跡檢測基礎····················································212
8.1.1 Radon 變換····················································212
8.1.2 尾跡線性特徵增強···········································215
8.1.3 尾跡線性特徵檢測···········································219
8.2 基於神經網路的尾跡SAR 圖像檢測······························222
8.2.1 Faster R-CNN··················································222
8.2.2 樣本數據處理·················································224
8.2.3 檢測結果與分析··············································225
8.3 基於尾跡的艦船參數反演···········································227
8.3.1 基於波幅函式的艦船尺寸反演····························227
8.3.2 基於尾跡圖像的艦船航速估計····························229
8.3.3 艦船尾跡空間頻譜分量分析·······························231
8.4 基於尾跡的浮標目標隱蔽最佳化方法·······························235
8.4.1 流場仿真與參數設定········································235
8.4.2 浮標目標的電磁散射特性與SAR 圖像··················237
8.4.3 目標尾跡的可探測性評判標準····························241
8.4.4 浮標目標的隱蔽最佳化方法探討····························243
8.5 本章小結································································245
參考文獻······································································245
