Smart Antennas

T. K. Sarkar, Michael C. Wicks, M. Salazar-Palma, Robert J. Bonneau

  • 出版商: Wiley
  • 出版日期: 2003-05-06
  • 售價: $1,039
  • 語言: 英文
  • 頁數: 472
  • 裝訂: Hardcover
  • ISBN: 0471210102
  • ISBN-13: 9780471210108
  • 相關分類: 天線相關 Antennas
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商品描述

 valuable addition to the Wiley Series in Microwave and Optical Engineering

Today’s modern wireless mobile communications depend on adaptive "smart" antennas to provide maximum range and clarity. With the recent explosive growth of wireless applications, smart antenna technology has achieved widespread commercial and military applications.

The only book available on the topic of adaptive antennas using digital technology, this text reflects the latest developments in smart antenna technology and offers timely information on fundamentals, as well as new adaptive techniques developed by the authors. Coupling electromagnetic aspects of antenna design with signal processing techniques designed to promote accurate and efficient information exchange, the text presents various mechanisms for characterizing signal-path loss associated with signal propagation, particularly for mobile wireless communications systems based on such techniques as joint space-frequency adaptive processing.

In clear, accessible language, the authors:

  • explain the difference between adaptive antennas and adaptive signal processing
  • Illustrate the procedures for adaptive processing using directive elements in a conformal array
  • clarify multistage analysis procedure which combines electromagnetic analysis with signal processing
  • present a survey of the various models for characterizing radio wave propagation in urban and rural environments
  • describe a method wherein it is possible to identify and eliminate multipath without spatial diversity
  • optimize the location of base stations in a complex environment

The text is an excellent resource for researchers and engineers working in electromagnetics and signal processing who deal with performance improvement of adaptive techniques, as well as those who are concerned with the characterization of propagation channels and applications of airborne phased arrays.

Table of Contents

Preface.

Acknowledgments.

Introduction.

What is an Antenna and How it Works.

Anatomy of an Adaptive Algorithm.

Direct Data Domain Least Squares Approaches to Adaptive Processing Based on Single Snapshots of Data.

Elimination of the Effects of Mutual Coupling on Adaptive Antennas.

Direction of Arrival Estimation and Adaptive Processing Using A Nonuniformly Spaced Array from a Single Snapshot.

Estimating Direction of Arrivals by Exploiting Cyclostationarity Using a Real Antenna Array.

A Survey of Various Propagation Models for Mobile Communication.

Methods for Optimizing the Location of Base Stations for Indoor Wireless Communication.

Identification and Elimination of Multipath Effects Without Spatial Diersity.

Signal Enhancement In Multiuser Communication through Adaptivity on Transmit.

Direct Data Domain Lease Squares Space-Time Adaptive.

Appendix A: The Concept of a Random Process and its Philosophical Implications in Analyzing Communication Systems.

Appendix B: A Brief Survey of the Conjugate Gradient Method.

Appendix C: Estimation of the Direction of Arrival in One and Two Dimensions Using the Matrix Pencil Method.

Index.

商品描述(中文翻譯)

這本書是Wiley系列中關於微波和光學工程的寶貴補充。現代無線移動通信依賴於適應性的「智能」天線,以提供最大的範圍和清晰度。隨著無線應用的迅猛增長,智能天線技術已經廣泛應用於商業和軍事領域。

這本書是唯一一本關於使用數字技術的適應性天線的書籍,反映了智能天線技術的最新發展,並提供了作者開發的新的適應性技術的及時信息。將天線設計的電磁方面與旨在促進準確和高效信息交換的信號處理技術相結合,本書介紹了用於表徵與信號傳播相關的信號路徑損耗的各種機制,特別是基於聯合空間頻率適應性處理的移動無線通信系統。

作者以清晰易懂的語言解釋了適應性天線和適應性信號處理之間的區別,並使用符合陣列中指向性元素的適應性處理程序進行了說明。他們還澄清了將電磁分析與信號處理相結合的多級分析程序,並對表徵城市和鄉村環境中無線電波傳播的各種模型進行了調查。此外,他們還描述了一種方法,可以在沒有空間多樣性的情況下識別和消除多徑效應,並優化複雜環境中基站的位置。

本書對於從事電磁學和信號處理的研究人員和工程師來說是一個很好的資源,他們處理適應性技術的性能改進,以及對傳播通道的表徵和機載相控陣列的應用感興趣的人。

目錄:
前言
致謝
引言
天線是什麼以及它的工作原理
適應性算法的結構
基於單個數據快照的適應性處理的直接數據域最小二乘方法
消除互耦對適應性天線的影響
使用非均勻間距陣列從單個數據快照中估計到達方向和適應性處理
利用實際天線陣列利用循環穩態來估計到達方向
對移動通信的各種傳播模型進行調查
室內無線通信基站位置優化方法
在沒有空間多樣性的情況下識別和消除多徑效應
通過發射端的適應性實現多用戶通信的信號增強
直接數據域最小二乘時空適應性
附錄A:隨機過程的概念及其在分析通信系統中的哲學意義
附錄B:共軛梯度法的簡要調查
附錄C:使用矩陣鉛筆法在一維和二維中估計到達方向
索引