基本信息
書名:數字通信(第五版 英文精簡版)
定價:59.00元
作者:(美)普羅科斯,(美)薩利希,張力軍 等改編
齣版社:電子工業齣版社
齣版日期:2012-01-01
ISBN:9787121153259
字數:
頁碼:
版次:1
裝幀:平裝
開本:
商品重量:0.4kg
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內容提要
本書是在《數字通信(第五版)》的基礎上,根據的實際教學情況進行精簡和改編的。主要的精簡原則為:保留信號傳輸理論內容,捨去信息傳輸理論內容,並以傳統而經典的數字傳輸理論為主,無綫通信為輔。改編的部分主要是根據實際教學的常用習慣來進行的。精簡後的內容主要涵蓋:確定與*信號分析;數字調製方法;AWGN信道的*接收機;載波和符號同步;通過帶限信道的數字通信;自適應均衡;多信道和多載波係統;數字通信用擴頻信號;衰落信道:信道特徵與信號傳輸;多天綫係統。
目錄
Chapter 1Introduction
1.1 Elements of a Digital CommunicationSystem
1.2 Communication Channels and TheirCharacteristics
1.3 Mathematical Models for CommunicationChannels
1.4 A Historical Perspective in the Development of
Digitalommunications
Chapter 2 Deterministic and Random SignalAnalysis
2.1 Representation of Bandpass Signals andSystems
2.1–1 Representation of Bandpass Signals/ 2.1–2 Response of aBandpass System to a Bandpass Signal
2.2 Signal Space Representation ofWaveforms
2.2–1 Vector Space Concepts / 2.2–2 Signal Space Concepts / 2.2–3Orthogonal Expansions of Signals /2.2–4 Gram-SchmidtProcedure
2.3 Some Useful RandomVariables
2.4 RandomProcesses
2.4–1 Wide-Sense Stationary Random Processes /2.4–2Cyclostationary Random Processes
2.5 Series Expansion of RandomProcesses
2.5–1 Sampling Theorem for Band-Limited RandomProcesses /2.5–2 TheKarhunen-Lo`eve Expansion
2.6 Bandpass Stationary StochasticProcesses
Problems
Chapter 3 Digital ModulationSchemes
3.1 Representation of Digitally ModulatedSignals
3.2 Memoryless ModulationMethods
3.2–1 Pulse Amplitude Modulation (PAM) / 3.2–2 Phase Modulation /3.2–3 Quadrature Amplitude Modulation /3.2–4 MultidimensionalSignaling
3.3 Signaling Schemes withMemory
3.3–1 Continuous-Phase Frequency-Shift Keying(CPFSK) /
3.3–2 Continuous-Phase Modulation (CPM)
3.4 Power Spectrum of Digitally ModulatedSignals
3.4–1 Power Spectral Density of a Digitally ModulatedSignalwith
Memory / 3.4–2 Power Spectral Density of LinearlyModulated
Signals / 3.4–3 Power Spectral Density ofDigitally Modulated
Signals with Finite Memory / 3.4–4Power Spectral Density of
Modulation Schemes with a MarkovStructure / 3.4–5 Power
Spectral Densities of CPFSK and CPM Signals
Problems
Chapter 4 Optimum Receivers for AWGNChannels
4.1 Waveform and Vector ChannelModels
4.1–1 Optimal Detection for a General Vector Channel
4.2 Waveform and Vector AWGNChannels
4.2–1 Optimal Detection for the Vector AWGN Channel /4.2–2Implementation of the Optimal Receiver for AWGN Channels / 4.2–3 AUnion Bound on the Probability of Error of Maximum LikelihoodDetection
4.3 Optimal Detection and Error Probability for Band-Limited
Signaling
4.3–1 Optimal Detection and Error Probability for ASK or
PAM Signaling / 4.3–2 Optimal Detection and ErrorProbability
for PSK Signaling / 4.3–3 Optimal Detection and ErrorProbability
for QAM Signaling / 4.3–4 Demodulation and Detection
4.4 Optimal Detection and Error Probability forPower-Limited
Signaling
4.4–1 Optimal Detection and Error Probability for Orthogonal
Signaling / 4.4–2 Optimal Detection and Error Probabilityfor
Biorthogonal Signaling / 4.4–3 Optimal Detection and Error
Probability for Simplex Signaling
4.5 Optimal Detection in Presence of Uncertainty:Noncoherent
Detection
4.5–1 Noncoherent Detection of Carrier Modulated Signals /4.5–2Optimal Noncoherent Detection of FSK Modulated Signals / 4.5–3Error Probability of Orthogonal Signaling with NoncoherentDetection / 4.5–4 Probability of Error for Envelope Detection ofCorrelated Binary Signals /4.5–5 Differential PSK (DPSK)
4.6 A Comparison of Digital SignalingMethods
4.6–1 Bandwidth and Dimensionality
4.7 Lattices and Constellations Based onLattices
4.7–1 An Introduction to Lattices / 4.7–2 Signal Constellationsfrom Lattices
4.8 Detection of Signaling Schemes withMemory
4.8–1 The Maximum Likelihood Sequence Detector
4.9 Optimum Receiver for CPMSignals
4.9–1 Optimum Demodulation and Detection of CPM /4.9–2 Performanceof CPM Signals / 4.9–3 Suboptimum Demodulation and Detection of CPMSignals
Problems
Chapter 5 Carrier and SymbolSynchronization
5.1 Signal ParameterEstimation
5.1–1 The Likelihood Function / 5.1–2 Carrier Recovery and
Symbol Synchronization in Signal Demodulation
5.2 Carrier PhaseEstimation
5.2–1 Maximum-Likelihood Carrier Phase Estimation /5.2–2 ThePhase-Locked Loop / 5.2–3 Effect of AdditiveNoise on the PhaseEstimate / 5.2–4 Decision-Directed Loops / 5.2–5Non-Decision-Directed Loops
5.3 Symbol TimingEstimation
5.3–1 Maximum-Likelihood Timing Estimation /5.3–2Non-Decision-Directed Timing Estimation
5.4 Joint Estimation of Carrier Phase and SymbolTiming
5.5 Performance Characteristics of MLEstimators
Problems
Chapter 6 Digital Communication Through Band-LimitedChannels
6.1 Characterization of Band-LimitedChannels
6.2 Signal Design for Band-LimitedChannels
6.2–1 Design of Band-Limited Signals for No Intersymbol
Interference—The Nyquist Criterion / 6.2–2 Design of Band-LimitedSignals with Controlled ISI—Partial-Response Signals / 6.2–3 DataDetection for Controlled ISI /6.2–4 Signal Design for Channels withDistortion
6.3 Optimum Receiver for Channels with ISI andAWGN
6.3–1 Optimum Maximum-Likelihood Receiver /6.3–2 A Discrete-TimeModel for a Channel with ISI /6.3–3 Maximum-Likelihood SequenceEstimation (MLSE)
for the Discrete-Time White Noise Filter Model
6.4 LinearEqualization
6.4–1 Peak Distortion Criterion /6.4–2 Mean-Square-Error (MSE)Criterion /
6.4–3 Performance Characteristics of the MSE Equalizer /6.4–4Fractionally Spaced Equalizers /6.4–5 Baseband and Passband LinearEqualizers
6.5 Decision-FeedbackEqualization
6.5–1 Coefficient Optimization /6.5–2 Performance Characteristicsof DFE
6.6 Reduced Complexity MLDetectors
Problems
Chapter 7 AdaptiveEqualization
7.1 Adaptive LinearEqualizer
7.1–1 The Zero-Forcing Algorithm /7.1–2 The LMS Algorithm /7.1–3Convergence Properties of the LMS Algorithm /7.1–4 Excess MSE dueto Noisy Gradient Estimates /7.1–5 Accelerating the InitialConvergence Rate
in the LMS Algorithm / 7.1–6 Adaptive Fractionally SpacedEqualizer—The Tap Leakage Algorithm /7.1–7 An Adaptive ChannelEstimator for ML
Sequence Detection
7.2 Adaptive Decision-FeedbackEqualizer
7.3 Recursive Least-Squares Algorithms for AdaptiveEqualization
7.3–1 Recursive Least-Squares (Kalman) Algorithm /7.3–2 LinearPrediction and the Lattice Filter
Problems
Chapter 8 Multichannel and MulticarrierSystems
8.1 Multichannel Digital Communications in AWGNChannels
8.1–1 Binary Signals / 8.1–2 M-ary Orthogonal Signals
8.2 MulticarrierCommunications
8.2–1 Single-Carrier Versus Multicarrier Modulation /8.2–2Capacity of a Nonideal Linear Filter Channel /8.2–3 OrthogonalFrequency Division Multiplexing (OFDM) /8.2–4 Modulation andDemodulation in an OFDM System /
8.2–5 An FFT Algorithm Implementation of an OFDM System /8.2–6Spectral Characteristics of Multicarrier Signals /8.2–7 Bit andPower Allocation in Multicarrier Modulation /8.2–8 Peak-to-AverageRatio in Multicarrier Modulation /8.2–9 Channel CodingConsiderations in Multicarrier Modulation
Problems
Chapter 9 Spread Spectrum Signals for DigitalCommunications
9.1 Model of Spread Spectrum Digital CommunicationSystem
9.2 Direct Sequence Spread SpectrumSignals
9.2–1 Error Rate Performance of the Decoder /9.2–2 SomeApplications of DS Spread Spectrum Signals /9.2–3 Effect of PulsedInterference on DS Spread Spectrum Systems / 9.2–4 Excision ofNarrowband Interference in DS Spread Spectrum Systems / 9.2–5Generation of PN Sequences
9.3 Frequency-Hopped Spread SpectrumSignals
9.3–1 Performance of FH Spread Spectrum Signals in an
AWGN Channel / 9.3–2 Performance of FH Spread Spectrum
Signals in Partial-Band Interference / 9.3–3 A CDMA System
Based on FH Spread Spectrum Signals
9.4 Other Types of Spread SpectrumSignals
Problems
Chapter 10 Fading Channels : Characterization and
Signaling
10.1 Characterization of Fading MultipathChannels
10.1–1 Channel Correlation Functions and Power Spectra /
10.1–2 Statistical Models for Fading Channels
10.2 The Effect of Signal Characteristics on the Choice of aChannelModel
10.3 Frequency-Nonselective, Slowly FadingChannel
10.4 Diversity Techniques for Fading MultipathChannels
10.4–1 Binary Signals / 10.4–2 Multiphase Signals /10.4–3 M-aryOrthogonal Signals
10.5 Signaling over a Frequency-Selective, Slowly FadingChannel:
The RAKEemodulator
10.5–1 A Tapped-Delay-Line Channel Model / 10.5–2 The RAKEDemodulator / 10.5–3 Performance of RAKE Demodulator / 10.5–4Receiver Structures for Channels with IntersymbolInterference
10.6 Multicarrier Modulation(OFDM)
10.6–1 Performance Degradation of an OFDM System due to DopplerSpreading / 10.6–2 Suppression of ICI in OFDM Systems
Problems
Chapter 11 Multiple-AntennaSystems
11.1 Channel Models for Multiple-AntennaSystems
11.1–1 Signal Transmission Through a Slow FadingFrequency-Nonselective MIMO Channel / 11.1–2 Detection of DataSymbols in a MIMO System / 11.1–3 Signal
Transmission Through a Slow Fading Frequency-Selective MIMOChannel
11.2 Spread Spectrum Signals and MulticodeTransmission
11.2–1 Orthogonal Spreading Sequences /11.2–2 Multiplexing GainVersus Diversity Gain /11.2–3 Multicode MIMO Systems
Problems
作者介紹
文摘
序言
翻閱到後麵章節,關於多址接入和頻譜效率的探討,體現瞭作者深厚的工程洞察力。盡管這本書的側重點偏嚮理論基礎,但它並沒有脫離實際應用場景去空談。比如,在介紹OFDM(正交頻分復用)時,它沒有停留在DFT/IDFT的數學形式上,而是巧妙地引入瞭循環捲積的概念,並解釋瞭如何通過插入保護間隔(Guard Interval)來應對碼間串擾(ISI)。這種將數學模型與物理信道特性緊密結閤的敘述方式,對於理解現代無綫通信係統的核心技術至關重要。更令人贊賞的是,書中對不同多址方案的優缺點分析非常中立且透徹,它會告訴你TDMA的優點在於低復雜度的同步,但缺點是頻譜效率受限於時隙劃分的精度;而CDMA的優勢在於抗乾擾能力,但其係統容量受限於近遠效應和用戶間乾擾的精確控製。這種平衡的視角,讓你在學習時不會陷入非此即彼的誤區,而是能更全麵地理解通信係統設計中的權衡藝術(Trade-off)。它教會我們的不是“什麼是最好的”,而是“在特定約束下,什麼是最優解”。
評分從整體閱讀體驗來看,這本書帶給我最大的價值在於其強大的“知識錨定”能力。在如今碎片化學習盛行的時代,各種新技術名詞層齣不窮,但它們往往建立在一套相對固定的理論基石之上。這本書就像是一塊堅實的基石,一旦你紮實地掌握瞭其中的概念,無論是麵對5G的Massive MIMO,還是未來的太赫茲通信,你都能迅速地從底層原理去定位新技術的創新點和潛在瓶頸。它所蘊含的理論深度,使得我對許多看似高深的技術難題産生瞭“原來如此”的頓悟感。這本書的價值不在於它記錄瞭最新的技術規範,而在於它教會瞭我們如何去理解和創造未來的規範。它更像是一本“內功心法”的秘籍,而非招式套路。對於真正想在通信領域深耕的人來說,這本書的價值會隨著你專業知識的積纍而不斷增加,每一次重讀,都會有新的理解和感悟。它用最簡潔的篇幅,承載瞭最厚重的理論,是那種值得放在書架上,隨時可以翻閱並從中汲取力量的經典之作。
評分這本書的語言風格,用一個詞來形容就是“剋製而有力”。它很少使用煽動性的語言,更沒有那種試圖用時髦概念來吸引眼球的浮誇。整本書讀下來,感覺就像是在聽一位德高望重的學者用他最精確的詞匯進行一次嚴謹的學術報告。每一個技術術語的定義都經過瞭反復的錘煉,力求準確無誤。這種嚴謹性,在處理那些容易産生歧義的概念時尤為重要,比如“信息熵”和“互信息”的區分,書中通過明確的數學定義和清晰的物理意義闡釋,徹底消除瞭我過去的一些模糊認識。相比於一些側重工程應用的資料,這本書更像是一份理論藍圖的繪製指南。它迫使你必須調動起你所有關於微積分、概率論和綫性代數的儲備知識,去跟上作者的思路。坦白說,初讀時,那種高強度的思考負荷讓人倍感壓力,經常需要停下來,反復咀嚼一兩個段落纔能真正消化。但正是這種高強度的思維對抗,帶來瞭巨大的智力滿足感。它不是在“喂”你知識,而是在訓練你的“思考肌肉”,讓你在麵對新的通信技術挑戰時,能夠迅速地迴到第一性原理上去進行分析和判斷。
評分這本書的封麵設計簡直是直擊靈魂的樸實無華,那種帶著些許陳舊感的字體排版,讓我瞬間穿越迴瞭那個膠片相機還流行,厚重教材是學習標配的年代。初次翻開,那份帶著油墨香的紙張觸感,以及那種微微泛黃的邊角,無不透露著一種“硬貨”的氣息。它不像現在很多花裏鬍哨的教材那樣堆砌大量的彩圖和復雜的動畫模擬,而是完全迴歸到瞭信息傳輸的本質。每一章的開篇,都不是那種拖泥帶水的背景介紹,而是直截瞭當地拋齣核心概念,仿佛一位經驗豐富的老教授,不容許你有絲毫懈怠,直接把你拉入到那個充滿傅裏葉變換和噪聲抑製的數學世界。尤其是那些推導過程,簡直是教科書級彆的嚴謹,每一個符號的齣現都有其必然性,很少有那種“此處跳過”或者“讀者自行推導”的含糊其辭。對於我這種熱衷於從源頭理解原理的人來說,這種紮實到近乎刻闆的敘述方式,反而帶來瞭一種極大的安全感。它沒有試圖用過於現代化的術語去粉飾理論的復雜性,而是用最經典、最經過時間檢驗的數學工具,把數字信號處理和信息論的基石夯築得異常牢固。讀下去,你會真切地感受到,這不僅僅是一本教材,更像是一部關於現代通信係統演化史的精煉史詩。
評分這本書的結構安排,如同一個技藝精湛的工匠在打磨一塊璞玉,層層遞進,邏輯鏈條嚴密得讓人喘不過氣,但同時也讓人欲罷不能。它避開瞭那些市場上流行的,過於偏重軟件實現或最新協議的潮流風嚮,而是將火力集中在那些真正決定性能上限的底層物理過程上。比如,對於信道編碼和調製的論述,它不是簡單地羅列齣MPSK、QAM等調製方式的星座圖,而是深入挖掘瞭它們在不同噪聲環境下誤碼率的數學邊界,以及如何通過更復雜的編碼方案去逼近香農極限。我花瞭整整一個下午去啃第五章關於均衡技術的章節,作者用極其精妙的筆觸,闡述瞭判決反饋均衡(DFE)和迫零(ZF)均衡器的工作原理及其在實際多徑信道中的局限性。書中對於信道模型的假設非常清晰,從理想的AWGN到復雜的衰落信道,每一步的過渡都伴隨著精確的數學模型建立。這種由淺入深,層層剝繭的講解方式,極大地培養瞭讀者的“係統思維”——你不再是孤立地看一個算法,而是能清晰地看到它在整個通信鏈路中扮演的角色和受到的製約。那種清晰的脈絡感,使得復雜的理論知識點不再是零散的碎片,而是有機地組閤成瞭一張密不透風的理論大網。
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