 
			 
				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。
杜選民,1970年9月齣生,研究員/博士生導師,畢業於哈爾濱工程大學,獲水聲工程專業博士學位。現擔任中國船舶重工集團公司第七二六研究所副所長、水聲對抗技術重點實驗室副主任、水聲對抗技術重點實驗室學術委員會副主任委員、水聲對抗國防科技創新團隊帶頭人、上海市聲學學會理事、《聲學學報》《聲學技術》《艦船科學技術》編委會委員。
從事水聲及水聲對抗技術研究工作20餘年,主持研製瞭艦用魚雷報警聲納、艦水聲對抗係統、港口近程水下警戒探測係統等裝備,均填補*內空白,獲國防科技進步一等奬2項、二等奬2項、三等奬2項。在國內首次解決瞭拖綫陣左右舷分辨、高速運動目標自適應檢測與識彆、非綫性聲納工程應用等關鍵技術。
入選國傢新世紀百韆萬人纔工程、國防科技工業511人纔工程、國防科技工業有突齣貢獻中青年專傢、上海市領軍人纔。
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··························································································· 27
2.3.6 寬帶聲源·························
陣列信號處理是現代聲納設備的核心功能之一。通過對接收陣列的信號處理,可以獲
取空間指嚮性增益,提高聲納作用距離,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、連續波主動聲納、MIMO 聲納等新體製聲納及
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。
本書作者一直從事水聲及水聲對抗技術研究和裝備研製工作,在長期工作和學習中積
纍瞭較豐富的理論知識和工程經驗,現將多年來在陣列信號處理方麵的研究成果進行提煉
和總結,形成本書。本書分為基礎理論、陣列應用和新技術研究三個部分。基礎理論部分
(第1~3 章)介紹瞭海洋信道中的聲場模型、基陣理論基礎和陣列信號模型,是各種陣列
信號處理技術研究的理論基礎。陣列應用部分(第4~8 章)分彆介紹瞭矢量水聽器及陣處
理、自適應波束形成與噪聲抵消、聲納被動定位、目標運動分析、空時自適應處理技術和方
法,是陣列信號處理的具體應用和實踐。第9 章新技術研究部分介紹瞭模基信號處理、MIMO
聲納處理、連續波主動聲納處理技術的原理和方法,是陣列信號處理的重要發展方嚮。
本書試圖將陣列信號處理的理論模型和工程應用結閤起來,側重於實用。希望對從事
水聲及水聲對抗技術研究和裝備研製的科研人員有所幫助。本書可作為水聲工程、信號處
理等專業研究生教材,也可作為聲納設備設計人員開展相關研究工作的參考。
本書在撰寫過程中,得到瞭姚藍教授、惠俊英教授、王廣恩研究員等老一輩水聲行業專傢的
指導,並提齣十分關鍵的修改意見,在此嚮他們錶示崇高的敬意和衷心的感謝。本書的研究
工作得到水聲對抗技術重點實驗室孟昭文主任的大力支持,劉本奇、蔣小勇、潘謝帆、譚君
紅等參與瞭有關章節的研究工作,在此一並錶示感謝。
由於作者水平有限,書中難免有不妥之處,敬請讀者批評指正。
作者
2017 年4 月
這本《聲納陣列信號處理技術》仿佛是一扇通往水下未知世界的窗戶,讓我能夠窺探那些隱藏在深海中的秘密。作為一名對海洋科學有著濃厚興趣的業餘愛好者,我常常在紀錄片中看到聲納設備如何描繪海底地形、定位潛艇,但對其背後的技術原理卻知之甚少。這本書名瞬間勾起瞭我的探究欲,我迫切地想知道,究竟是怎樣的“魔法”讓聲納陣列能夠如此精準地捕捉和解析那些微弱的水下迴聲。我希望書中能夠從最基礎的概念講起,比如什麼是“聲納”,什麼是“陣列”,以及為什麼需要“陣列”來增強信號。我期待它能用通俗易懂的語言,解釋諸如波束形成、信號的傅裏葉變換、自適應濾波等核心概念,讓我能夠理解聲納係統是如何通過數學和物理原理來“聽見”並“看見”水下世界的。此外,如果書中能夠穿插一些關於聲納技術發展曆程的故事,或者介紹一些曆史上著名的聲納係統,那將使閱讀過程更加生動有趣,也更能激發我對這個領域的持續學習熱情。
評分這本書的封麵設計簡潔大方,一看就充滿瞭科技感。書名“聲納陣列信號處理技術”直接點明瞭主題,對於我這樣一個對聲納技術和信號處理充滿好奇的初學者來說,無疑具有極大的吸引力。我一直對聲納在水下探測、導航以及軍事應用中的作用感到好奇,但苦於沒有係統的入門書籍。市麵上很多關於信號處理的書籍要麼過於理論化,要麼側重於其他領域,很難找到一本專門針對聲納陣列進行深入講解的。這本書的齣現,讓我看到瞭希望。我尤其期待書中能夠詳細介紹聲納陣列的基本原理,比如陣列的構成、不同陣型的優缺點,以及聲波在水下的傳播特性等。同時,我希望能瞭解聲納陣列在信號采集過程中遇到的挑戰,例如噪聲抑製、乾擾消除等,以及相應的處理技術。如果書中能夠提供一些實際的應用案例,那就更好瞭,這樣我不僅能理解理論,還能看到技術是如何落地的,從而更全麵地認識聲納陣列信號處理技術在現實世界中的價值和意義。
評分一直以來,我對軍事科技特彆是與水下作戰相關的技術都抱有濃厚的興趣。《聲納陣列信號處理技術》這本書的書名,直接擊中瞭我的好奇心。我一直對潛艇探測、反潛作戰以及水下目標識彆等領域的工作原理感到著迷,而聲納陣列無疑是其中的核心技術之一。我希望這本書能夠深入淺齣地剖析聲納陣列在軍事應用中的關鍵作用,例如如何在復雜的海洋環境中,通過陣列信號處理技術來提高目標探測的精度和可靠性,有效區分乾擾信號和真實目標。我期待書中能夠詳細介紹一些與軍事相關的聲納技術,比如主動聲納和被動聲納在陣列信號處理上的區彆和優勢,以及如何通過先進的算法來應對電子對抗和欺騙。如果書中能夠涉及一些聲納陣列在水下目標跟蹤、定位以及聲學成像方麵的技術細節,並且能夠提供一些模擬計算的實例,那將是極好的。我希望能從這本書中獲得對現代軍事聲納技術更深層次的理解,並對其未來的發展趨勢有所預判。
評分作為一名海洋工程專業的學生,我經常在課程中接觸到聲學和信號處理的相關知識,但往往是零散的,缺乏一個係統性的整閤。《聲納陣列信號處理技術》這本書恰好填補瞭我在這方麵的知識空白。我希望它能夠提供一個完整的框架,將聲納陣列的設計、信號采集、數據處理以及信息提取等各個環節串聯起來。我非常期待書中能夠詳細闡述不同類型聲納陣列(例如綫列陣、圓陣、二維陣等)的結構特點、優劣勢分析,以及它們各自適用的應用場景。在信號處理方麵,我希望能夠深入瞭解各種濾波技術、空域濾波、時域處理以及目標檢測與識彆的算法原理,並理解這些算法在聲納陣列應用中的具體實現。如果書中能夠提供一些數學模型推導和算法流程圖,並輔以相關的實驗數據或仿真結果,那將有助於我更好地理解理論知識,並將其應用於實際的海上工程項目設計和分析中。
評分我一直從事與通信係統相關的工作,對信號處理的理論基礎有著一定的瞭解,但對於將這些理論應用於聲納陣列這一特定場景,我感到非常陌生。因此,《聲納陣列信號處理技術》這本書吸引瞭我,我希望它能夠提供一個係統性的視角,將我已有的信號處理知識與聲納陣列的獨特需求相結閤。我尤其關注書中對陣列信號處理算法的深入探討,比如如何利用各種空間濾波技術來增強目標信號,抑製海洋環境中的雜波和噪聲。我期待書中能夠詳細介紹諸如LCMV(Least-squares Minimum Variance)束形成、Capon波束形成等經典算法,以及它們在聲納係統中的具體實現和性能評估。此外,隨著人工智能和機器學習技術的發展,我很好奇這些先進技術如何被應用於聲納陣列信號處理,例如目標識彆、分類以及異常檢測等。如果書中能夠涵蓋這方麵的內容,並提供相關的案例分析,那將極大地拓寬我的視野,並為我未來的工作提供新的思路和啓發。
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