聲納陣列信號處理技術 下載 mobi epub pdf 電子書 2024

基本信息

書名：聲納陣列信號處理技術

：58.00元

作者：杜選民

齣版社：電子工業齣版社

齣版日期：2018-02-01

ISBN：9787121336492

字數：

頁碼：

版次：1

裝幀：平裝

開本：16開

商品重量：0.4kg

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內容提要

陣列信號處理是現代聲納設備的核心功能之一。通過接收陣列的信號處理，可以獲取空間指嚮性增益，提高空間分辨和乾擾抑製能力，實現對目標的檢測與跟蹤、方位與距離估計；通過發射陣列的信號處理，可以獲取具有一定時延差或相位差的陣元信號，從而形成指嚮性發射波束，提高聲源級；通過空-時自適應處理，可以提高對弱目標的檢測能力。近年來，聲納技術不斷發展，齣現瞭多綫列陣聲納、連續波聲納、MIMO聲納等新體製聲納以及自適應盲處理、時反處理、矢量信號處理、魯棒性波束形成、模基信號處理等新型處理算法，這些都是聲納陣列信號處理的發展與豐富。本書深入、係統地介紹瞭可應用於實際聲納設備的陣列信號處理技術，在簡單的原理接收基礎上又大量的計算機模擬仿真及湖、海試實際數據的處理結果。另外本書有較大篇幅的聲納陣列信號處理領域的新技術介紹。

目錄

第1 章 聲場概述············································································································1

1.1 引言···························································································································· 1

1.2 聲波的基本概念········································································································ 1

1.3 聲學基本物理量········································································································ 1

1.4 理想流體介質中小振幅波傳播的基本規律······························································ 2

1.4.1 理想流體介質······································································································· 2

1.4.2 連續性方程·········································································································· 3

1.4.3 狀態方程············································································································· 3

1.4.4 運動方程············································································································· 4

1.4.5 波動方程············································································································· 4

1.4.6 速度勢函數·········································································································· 4

1.4.7 亥姆霍茲方程······································································································· 5

1.4.8 三種不同坐標係下亥姆霍茲方程求解····································································· 5

1.4.9 綫性濾波器理論框架下波動方程求解····································································· 9

1.4.10 介質特性阻抗··································································································· 11

1.5 分層介質中的波傳播······························································································· 11

1.5.1 平行平麵層中波傳播的一般關係·········································································· 11

1.5.2 邊界條件··········································································································· 12

1.5.3 硬底均勻淺海聲場······························································································ 12

1.5.4 液態海底均勻淺海聲場······················································································· 14

1.6 聲場傳播基本模型··································································································· 15

1.7 聲學工具·················································································································· 16

1.8 本章小結·················································································································· 17

參考文獻······························································································································17

第2 章 基陣理論基礎···································································································18

2.1 引言·························································································································· 18

2.2 基陣的主要性能參數······························································································· 18

2.2.1 常見的基陣類型································································································· 18

2.2.2 主要性能參數····································································································· 18

2.3 均勻綫列陣·············································································································· 21

2.3.1 基陣響應（指嚮性函數） ···················································································· 22

2.3.2 乘積定理··········································································································· 24

2.3.3 幅度加權··········································································································· 25

2.3.4 波束掃描··········································································································· 25

2.3.5 離散空間傅裏葉變換··············································