數(shù)字信號(hào)處理

內(nèi)容概要

　　Mitra教授的《數(shù)字信號(hào)處理——基于計(jì)算機(jī)的方法》（第2版）（影印版）于2001年由清華大學(xué)出版社推出以來(lái)，得到了廣大院校師生的一致好評(píng)，并對(duì)國(guó)內(nèi)高校雙語(yǔ)教學(xué)的展開(kāi)起到了積極的推動(dòng)作用。
　　現(xiàn)在推出的第3版編影印片，由國(guó)內(nèi)知名教授根據(jù)教學(xué)經(jīng)驗(yàn)和教學(xué)要求提出縮編方案，使之既滿足國(guó)內(nèi)學(xué)生閱讀國(guó)外經(jīng)典教材的需求，又最大程度地維護(hù)原著的特　色與風(fēng)格。
　　本書(shū)非常適合電類專業(yè)本科生用作教材，也可作為研究生的參考用書(shū)和工程技術(shù)人員的自覺(jué)用書(shū)。
　　Mitra教授是國(guó)際上著名的信號(hào)處理專家。他在加利福尼亞大學(xué)伯克利分校獲得碩士和博士學(xué)位，先后在康奈爾大學(xué)、AT&T貝爾實(shí)驗(yàn)室、加利福尼亞大學(xué)截維斯分校、圣?巴巴拉分校任教和工作。他曾任圣?巴巴拉分校電氣與計(jì)算機(jī)工程系主任，IEEE電路與電系統(tǒng)學(xué)會(huì)的主席，IEE、AAAS和SPIE學(xué)會(huì)的Fellow，多個(gè)國(guó)際著名雜志的編委，并獲得多項(xiàng)企業(yè)和學(xué)術(shù)界工程院院士、芬蘭科學(xué)院院士、挪威技術(shù)科學(xué)院院士、墨西哥工程院外籍院士等。

作者簡(jiǎn)介

作者：(美)米特拉

書(shū)籍目錄

Prefce
1 Signals and Signal Processing
1.1 Characterization and Classiflcation of Signals
1.2 Typical Signal Processing Operations
1.3 Examples of Typical Signals
1.4 Typical Signal Processing Applications
1.5 Why Digital Signal Processing?
2 Discrete-Time Signals and Systems
2.1 Discrete-Time Signals
2.2 Typical Sequences and Sequece Representation
2.3 The Sampling Process
2.4 Discrete-Time Systems
2.5 Time-Domain Characerization of Lti Discrete-Time Systems
2.6 Simple Interconnection Schemes
2.7 Finite-Dimensional LTI Discrete-Time Systems
2.8 Classificaiton of LTIDiscrete-Time Systems
2.9 Correlation of Signals
2.10 Random Signals
2.11 Summary
2.12 Problems
2.13 MATLAB Exercises
3 Discrete-Time Fourier Transform
3.1 The Continuous-Time Fourier Transform
3.2 The Discrete-Time Fourier Transform
3.3 Discrete-Time Fourief Transform Theorems
3.4 Energy Density Spectrum of a Discrete -Time Sequence
3.5 Band-Limited Discrete-Time Signals
3.6 DTFT Computation Using MATLAB
3.7 The Unwrapped Phase Function
3.8 The Frequency Responese of and LTIDiscrete-Time System
3.9 Phase and Group Delays
……
4 Digital Processing of Continuou-Time Signals
5 Finite-Length Discrete Transforms
6 z-Transform
7 LTI Discretems in the Transform Domain
9 IIR Digital Filter Design
10 FIR Digital Filter Design
Bibliography

章節(jié)摘錄

版權(quán)頁(yè)：   插圖：   Seismic signals also play an important role in the geophysical exploration for oil and gas [Rob80].In this type of application, linear arrays of seismic sources,such as high-energy explosives,are placed at regular intervals on the ground surface.The explosions cause seismic waves to propagate through the subsurface geological structures and reflect back to the surface from interfaces between geological strata.The reflected waves are converted into electrical signals by a composite array of geophones laid out in certain patterns and displayed as a two-dimensional signal that is a function of time and space,called a trace gather,as indicated in Figure 1,15.Before these signals are analyzed,some preliminary time and amplitude corrections are made on the data to compensate for different physical henomena.From the corrected data,the time differences between reflected seismic signals are used to map structural deformations,whereas the amplitude changes usually indicate the presence of hydrocarbons. Speech Signals The acoustic theory of speech production has led to a range of mathematical models for the representation of speech signals.A speech signal is created by exciting the vocal tract using either quasi-periodic puffsof air or by creating turbulent air flow around a constriction in the vocal tract or by a mixture of these two sound sources [De193],[Rab78].So-called voiced sounds are generated when air is forced through the tensed glottis,causing it to vibrate in an oscillatory manner and generating pseudo-periodic pulses of air that excite the vocal tract.Included in the class of voiced sounds are vowels such as/I/(as in 'big') or/ae/(as in 'bad');voiced consonants such as/b/,/d/,/g/,/m/,/n/and so on;and so-called liquids and glides such as/w/,/l/,/r/,and/y/.4 Unvoiced sounds are generated by forming a constriction at some point in the vocal tract,which causes the air flow to become turbulent (noise-like) and to act as the excitation source for sounds such as/f/,/s/,/sh/and so forth.Finally,there is a class of sounds that utilizes both sources of excitation and hence has characteristics of both voiced sounds and unvoiced sounds.Among this class of sounds are the voiced fricatives such as/v/,/z/,and/zh/.

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《清華版雙語(yǔ)教學(xué)用書(shū)?數(shù)字信號(hào)處理:基于計(jì)算機(jī)的方法(第3版)》非常適合電類專業(yè)本科生用作教材，也可作為研究生的參考用書(shū)和工程技術(shù)人員的自學(xué)用書(shū)。

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