数字信号处理 基于计算机的方法 第2版PDF|Epub|txt|kindle电子书版本网盘下载

数字信号处理 基于计算机的方法 第2版PDF格式电子书版下载

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1 Signals and Signal Processing1

1.1 Characterization and Classification of Signals1

1.2 Typical Signal Processing Operations3

1.3 Examples of Typical Signals12

Preface13

1.4 Typical Signal Processing Applications22

1.5 Why Digital Signal Processing?37

2 Discrete-Time Signals and Systems in the Time-Domain41

2.1 Discrete-Time Signals42

2.2 Typical Sequences and Sequence Representation53

2.3 The Sampling Process60

2.4 Discrete-Time Systems63

2.5 Time-Domain Characterization of LTI Discrete-Time Systems71

2.6 Finite-Dimensional LTI Discrete-Time Systems80

2.7 Correlation of Signals88

2.8 Random Signals94

2.9 Summary105

2.10 Problems106

2.11 MATLAB Exercises115

3.1 The Discrete-Time Fourier Transform117

3 Discrete-Time Signals in the Transform-Domain117

3.2 The Discrete Fourier Transform131

3.3 Relation between the DTFT and the DFT,and Their Inverses137

3.4 Discrete Fourier Transform Properties140

3.5 Computation of the DFT of Real Sequence146

3.6 Linear Convolution Using the DFT149

3.7 The z-Transform155

3.8 Region of Convergence of a Rational z-Transform159

3.9 Inverse z-Transform167

3.10 z-Transform Properties173

3.11 Transform-Domain Representations of Random Signals176

3.12 Summary179

3.13 Problems180

3.14 MATLAB Exercises199

4 LTI Discrete-Time Systems in the Transform-Domain203

4.1 Finite-Dimensional Discrete-Time Systems203

4.2 The Frequency Response204

4.3 The Transfer Function215

4.4 Types of Transfer Functions222

4.5 Simple Digital Filters234

4.6 Allpass Transfer Function243

4.7 Minimum-Phase and Maximum-Phase Transfer Functions246

4.8 Complementary Transfer Functions248

4.9 Inverse Systems253

4.10 System Identification256

4.11 Digital Two-Pairs259

4.12 Algebraic Stability Test261

4.13 Discrete-Time Processing of Random Signals267

4.14 Matched Filter272

4.15 Summary275

4.16 Problems277

4.17 MATLAB Exercises295

5 Digital Processing of Continuous-Time Signals299

5.1 Introduction299

5.2 Sampling of Continuous-Time Signals300

5.3 Sampling of Bandpass Signals310

5.4 Analog Lowpass Filter Design313

5.5 Design of Analog Highpass,Bandpass,and Bandstop Filters329

5.6 Anti-Aliasing Filter Design335

5.7 Sample-and-Hold Circuit337

5.8 Analog-to-Digital Converter338

5.9 Digital-to-Analog Converter344

5.10 Reconstruction Filter Design348

5.11 Effect of Sample-and-Hold Operation351

5.12 Summary352

5.13 Problems353

5.14 MATLAB Exercises356

6 Digital Filter Structures359

6.1 Block Diagram Representation359

6.2 Equivalent Structures363

6.3 Basic FIR Digital Filter Structures364

6.4 Basic IIR Digital Filter Structures368

6.5 Realization of Basic Structures Using MATLAB374

6.6 Allpass Filters378

6.7 Tunable IIR Digital Filters387

6.8 IIR Tapped Cascaded Lattice Structures389

6.9 FIR Cascaded Lattice Structures395

6.10 Parallel Allpass Realization of IIR Transfer Functions401

6.11 Digital Sine-Cosine Generator405

6.13 Summary408

6.12 Computational Complexity of Digital Filter Structures408

6.14 Problems409

6.15 MATLAB Exercises421

7 Digital Filter Design423

7.1 Preliminary Considerations423

7.2 Bilinear Transformation Method of IIR Filter Design430

7.3 Design of Lowpass IIR Digital Filters435

7.4 Design of Highpass,Bandpass,and Bandstop IIR Digital Filters437

7.5 Spectral Transformations of IIR Filters441

7.6 FIR Filter Design Based on Windowed Fourier Series446

7.7 Compuler-Aided Design of Digital Filters460

7.8 Design of FIR Digital Filters with Least-Mean-Square Error468

7.9 Constrained Least-Square Design of FIR Digital Filters469

7.10 Digital Filter Design Using MATLAB472

7.11 Summary497

7.12 Problems498

7.13 MATLAB Exercises510

8 DSP Algorithm Implementation515

8.1 Basic Issues515

8.2 Structure Simulation and Verification Using MATLAB523

8.3 Computation of the Discrete Fourier Transform535

8.4 Number Representation552

8.5 Arithmetic Operations556

8.6 Handling of Overflow562

8.7 Tunable Digital Filters562

8.8 Function Approximation568

8.9 Summary571

8.10 Problems572

8.11 MATLAB Exercises581

9 Analysis of Finite Wordlength Effects583

9.1 The Quantization Process and Errors584

9.2 Quantization of Fixed-Point Numbers585

9.3 Quantization of Floating-Point Numbers587

9.4 Analysis of Coefficient Quantization Effects588

9.5 A/D Conversion Noise Analysis600

9.6 Analysis of Arithmetic Round-Off Errors611

9.7 Dynamic Range Scaling614

9.8 Signal-to-Noise Ration in Low-Order IIR Filters625

9.9 Low-Sensitivity Digital Filters629

9.10 Reduction of Product Round-Off Errors Using Error Feedback635

9.11 Limit Cycles in IIR Digital Filters639

9.12 Round-Off Errors in FFT Algorithms646

9.13 Summary649

9.14 Problems650

9.15 MATLAB Exercises657

10 Multirate Digital Signal Processing659

10.1 The Basic Sample Rate Alteration Devices660

10.2 Filters in Sampling Rate Alteration Systems671

10.3 Multistage Design of Decimator and Interpolator680

10.4 The Polyphase Decomposition684

10.5 Arbitrary-Rate Sampling Rate Converter690

10.6 Digital Filter Banks696

10.7 Nyquist Filters700

10.8 Two-Channel Quadrature-Mirror Filter Bank705

10.9 Perfect Reconstruction Two-Channel FIR Filter Banks714

10.10 L-Channel QMF Banks722

10.11 Cosine-Modulated L-Channel Filter Banks730

10.12 Multilevel Filter Banks734

10.13 Summary738

10.14 Problems739

10.15 MATLAB Exercises750

11 Applications of Digital Signal Processing753

11.1 Dual-Tone Multifrequency Signal Detection753

11.2 Spectral Analysis of Sinusoidal Signals758

11.3 Spectral Analysis of Nonstationary Signals764

11.4 Spectral Analysis of Random Signals771

11.5 Musical Sound Processing780

11.6 Digital FM Stereo Generation790

11.7 Discrete-Time Analytic Signal Generation794

11.8 Subband Coding of Speech and Audio Signals800

11.9 Transmultiplexers803

11.10 Discrete Multitone Transmission of Digital Data807

11.11 Digital Audio Sampling Rate Conversion810

11.12 Oversampling A/D Converter812

11.13 Oversampling D/A Converter822

11.14 Sparse Antenna Array Design826

11.15 Summary829

11.16 Problems830

11.17 MATLAB Exercises834

Bibliography837

Index855