數字通信:離散時間方法(英文影印版) epub pdf  mobi txt 電子書 下載

數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載 2024

數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載 2024


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齣版社: 科學齣版社
ISBN:9787030318527
版次:1
商品編碼:10807594
包裝:平裝
叢書名: 國外電子與電氣工程經典圖書係列
開本:16開
齣版時間:2011-07-01
頁數:768

數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載 2024



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《數字通信:離散時間方法(英文影印版)》運用離散信號處理的原則來介紹和分析數字通信,連接瞭實時和離散方式,注重理論與實踐相結閤。涵蓋瞭離散信號處理、離散濾波器設計、多速率處理及估計理論,並提齣瞭基於離散信號的空間分析、數值算法。《數字通信:離散時間方法(英文影印版)》可作為電子信息工程、通信工程專業本科生教材,也可作為相關領域工程技術人員的參考書。

內頁插圖

目錄

Foreword
Preface
Chapter 1 Introduction
1.1 A Brief History of Communications 1
1.2 Basics Of Wireless Communications 10
1.3 Digital Communications 12
1.4 Why Discrete-Tune Processing Is So Popular 14
1.5 Organization of the Text 19
1.6 Notes and References 22

Chapter 2 Signals and Systems 1:A Review of the Basics
2.1 Introduction 23
2.2 Signals 24
2.2.1 Continuous-Time Signals 24
2.2.2 Discrete-Time Signals 26
2.3 Systems 28
2.3.1 Continuous-Time Systems 28
2.3.2 Discrete-Time Systems 29
2.4 Frequency Domain Characterizations 30
2.4.1 Laplace Transform 32
2.4.2 Continuous-Time Fourier Transform 37
2.4.3 Z Transform 40
2.4.4 Discrete-Time Fourier Transform 46
2.5 The Discrete Fourier Transform 50
2.6 The Relationship Between Discrete-Time and Continuous-Time Systems ~ 55
2.6.1 The Sampling Theorem 56
2.6.2 Discrete-Time Processing of Continuous-Time Signals
2.7 Discrete-Time Processing of Band-Pass Signals 67
2.8 Notes and References 70
2.9 Exercises 71

Chapter 3 Signals and Systems 2: Some Useful Discrete-Time Techniques for Digital Communications
3.1 Introduction 114
3.2 Multirate Signal Processing 115
3.2.1 Impulse-Train Sampling 115
3.2.2 Downsampling 118
3.2.3 Upsampling 120
3.2.4 The Noble Identities 122
3.2.5 Polyphase Filterbanks 122
3.3 Discrete-Time Filter Design Methods 127
3.3.1 IIR Filter Designs 129
3.3.2 FIR Filter Designs 134
3.3.3 Two Important Filters:The Differentiator and the Integrator 149
3.4 Notes and References 159
3.5 Exercises 159

Chapter 4 A Review of Probability Theory
4.1 Basic Definitions 178
4.2 Gaussian Random Variables 188
4.2.1 Density and Distribution Functions 188
4.2.2 Product Moments 192
4.2.3 Functions of Random Variables 193
4.3 Multivariate Gaussian Random Variables 195
4.3.1 Bivariate Gaussian Distribution !96
4.3.2 Linear Operators and Multivariate Gaussian Random Variables 197
4.4 Random Sequences 198
4.4.1 Power Spectral Density 199
4.4.2 Random Sequences and Discrete-Time LTI Systems 200
4.5 Additive White Gaussian Noise 202
4.5.1 Continuous-Time Random Processes 202
4.5.2 The White Gaussian Random Process:A Good Model for Noise? 204
4.5.3 White Gaussian Noise in a Sampled Data System 206
4.6 Notes and References 208
4.7 Exercises 208

Chapter 5 Linear Modulation 1: Modulation, Demodulation, and Detection
Chapter 6 Linear Modulation 2: Performance
Chapter 7 Carrier Phase Synchronization
Chapter 8 Symbol Timing Synchronization
Chapter 9 System Components
Chapter 10 System Design
AppendixA Pulse Shapes
Appendix B The Complex-Valued Representation for QAM
Appendix C Phase Locked Loops
Bibliography

精彩書摘

In the 1980s, the desire to increase the capacity and suite of services offered to mobile telephone customers prompted the development of digital communication systems. GSM,the digital mobile telephone standard in Europe, was deployed in the 1980s, whereas digital standards such as IS-54 and IS-136 (TDMA/FDM) and IS-95 (CDMA) were deployed in the United States in the 1990s. In addition to voice, digital radio is becoming more popular and television is increasingly delivered in a digital format (HDTV is an integrated digital video/audio format). The corresponding communications link is a digital communications link.
Data communication systems are also following this trend. One example is aeronautical telemetry.9 In aeronautical telemetry, the performance of an airborne "test article" is monitored by using a radio link to transmit the measurements output by a set of transducers to a ground-based monitoring station. The first aeronautical telemetry links were analog AM in the 1940s and analog FM in the 1950s. The output of each transducer modulated a separate carrier frequency to form the telemetry downlink. As airborne systems became more complex, more onboard measurements had to be collected and radioed to the ground. The use of separate carriers for each one proved unwieldy and uneconomical. By the 1970s, digital technology had progressed to the point where a new approach was possible. The transducer outputs were sampled to form a bit stream. The bit streams from all transducers were combined to form a composite bit stream that was used to modulate a single carrier. A digital version of FM (known as PCM/FM in the IRIG 106 Standard) became the most popular choice.
……

前言/序言


數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載 2024

數字通信:離散時間方法(英文影印版) 下載 epub mobi pdf txt 電子書

數字通信:離散時間方法(英文影印版) pdf 下載 mobi 下載 pub 下載 txt 電子書 下載 2024

數字通信:離散時間方法(英文影印版) mobi pdf epub txt 電子書 下載 2024

數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載
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立刻按 ctrl+D收藏本頁
你會得到大驚喜!!

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數字通信:離散時間方法(英文影印版) epub pdf mobi txt 電子書 下載 2024

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