Saturday, April 11, 2015

Free Download E-book Practical Analog and Digital Filter Design by Les Thede

Eltronicschool. - Here is analog and digital filter book from Artech House, Inc. Les Thede 2004. This book titled Practical Analog and Digital Filter Design. This book will give you information about basic of analog and digital filter that very useful when you want to design analog and digital filters.

Figure 1. Practical Analog and Digital Filter Design Book Cover

In this time we will give you global review about Practical Analog and Digital Filter Design and then we will give you link to take free download e-book of Practical Analog and Digital Filter Design by Les Thede from external server.

Book Description

From book preface: 
This book was intentionally written to be different from other filter design books in two important ways. First, the most common analog and digital filter design and implementation methods are covered in a no-nonsense manner. All important derivations and descriptions are provided to allow the reader to apply them directly to his or her own filter design problem. Over forty examples are provided to help illustrate the fundamentals of filter design. Not only are the details of analog active and digital IIR and FIR filter design presented in an organized and direct manner, but implementation issues are discussed to alert the reader to potential pitfalls. An added feature to this text is the discussion of fast Fourier transforms and how they can be used in filtering applications. The simulation of analog filters is made easier by the generation of PSpice circuit description files that include R-C component values calculated directly from the filter coefficients. In addition, the testing of IIR and FIR filters designed for audio signals is enhanced by providing sample sound files that can be filtered by using the digital
filter design coefficients. Anyone with a sound card on their computer can then
play the original and processed sound files for immediate evaluation.

The second difference between this book and others is that the text is accompanied by WFilter, a fully functional, Windows®-based filter design software package, and the source code on which it is based. The CD provides the reader with the ability to install WFilter with a few simple clicks of the mouse, and also supplies the reader with the well organized and clearly documented source code detailing the intricacies of filter design. No, the source code provided is not just a collection of fragmented functions, but rather a set of three organized
programs that have been developed (with the addition of an easy-to-use graphical interface) into the organized structure of WFilter. 

Content
  • Chapter 1 Introduction to Filters and Filter Design Software 1

1.1 Filter Selectivity 2
1.1.1 Lowpass Filters 3
1.1.2 Highpass Filters 4
1.1.3 Bandpass Filters 5
1.1.4 Bandstop Filters 5
1.2 Filter Approximation 6
1.3 Filter Implementation 8
1.4 WFilter - Filter Design Software 9
1.5 Conclusion 14
  • Chapter 2 Analog Filter Approximation Functions 15

2.1 Filter Transfer Functions 15
2.1.1 Transfer Function Characterization 16
2.1.2 Pole-Zero Plots and Transfer Functions 17
2.1.3 Normalized Transfer Functions 18
2.2 Butterworth Normalized Approximation Functions 19
2.2.1 Butterworth Magnitude Response 19
2.2.2 Butterworth Order 20
2.2.3 Butterworth Pole Locations 20
2.2.4 Butterworth Transfer Functions 21
2.3 Chebyshev Normalized Approximation Functions 27
2.3.1 Chebyshev Magnitude Response 27
2.3.2 Chebyshev Order 28
2.3.3 Chebyshev Pole Locations 28
2.3.4 Chebyshev Transfer Functions 29
2.4 Inverse Chebyshev Normalized Approximation Functions 34
viii Practical Analog and Digital Filter Design
2.4.1 Inverse Chebyshev Magnitude Response 34
2.4.2 Inverse Chebyshev Order 35
2.4.3 Inverse Chebyshev Pole-Zero Locations 35
2.4.4 Inverse Chebyshev Transfer Functions 37
2.5 Elliptic Normalized Approximation Functions 43
2.5.1 Elliptic Magnitude Response 43
2.5.2 Elliptic Order 45
2.5.3 Elliptic Pole-Zero Locations 45
2.5.4 Elliptic Transfer Functions 47
2.6 Comparison of Approximation Methods 52
2.7 Conclusion 54
  • Chapter 3 Analog Lowpass, Highpass, Bandpass, and Bandstop Filters 55

3.1 Unnormalized Lowpass Approximation Functions 55
3.1.1 Handling a First-Order Factor 57
3.1.2 Handling a Second-Order Factor 58
3.2 Unnormalized Highpass Approximation Functions 60
3.2.1 Handling a First-Order Factor 61
3.2.2 Handling a Second-Order Factor 62
3.3 Unnormalized Bandpass Approximation Functions 64
3.3.1 Handling a First-Order Factor 66
3.3.2 Handling a Second-Order Factor 66
3.4 Unnormalized Bandstop Approximation Functions 72
3.4.1 Handling a First-Order Factor 73
3.4.2 Handling a Second-Order Factor 73
3.5 Analog Frequency Response 76
3.5.1 Mathematics for Frequency Response Calculation 76
3.5.2 C Code for Frequency Response Calculation 80
3.6 Saving the Filter Parameters 82
3.7 Conclusion 84
  • Chapter 4 Analog Filter Implementation Using Active Filters 85

4.1 Implementation Procedures for Analog Filters 85
4.2 Lowpass Active Filters Using Op-amps 87
4.3 Highpass Active Filters Using Op-amps 92
4.4 Bandpass Active Filters Using Op-amps 96
4.5 Bandstop Active Filters Using Op-amps 98
4.6 Implementing Complex Zeros with Active Filters 103
4.7 Analog Filter Implementation Issues 106
4.7.1 Component Selection 106
4.7.2 Sensitivity Analysis 108
4.8 Using WFilter in Active Filter Implementation 111
4.9 Conclusion 113
Contents ix
  • Chapter 5 Introduction to Discrete-Time Systems 115

5.1 Analog-to-Digital Conversion 115
5.1.1 Frequency Spectrum and Sampling Rate 116
5.1.2 Quantization of Samples 118
5.1.3 A Complete Analog-to-Digital-to-Analog System 119
5.2 Linear Difference Equations and Convolution 120
5.2.1 Linear Difference Equations 121
5.2.2 Impulse Response and Convolution 124
5.3 Discrete-Time Systems and z-Transforms 126
5.4 Frequency Response of Discrete-Time Systems 130
5.5 Playing Digitized Waveforms on a Computer System 137
5.6 Conclusion 139
  • Chapter 6 Infinite Impulse Response Digital Filter Design 141

6.1 Impulse Response Invariant Design 142
6.2 Step Response Invariant Design 146
6.3 Bilinear Transform Design 151
6.4 C Code for IIR Frequency Response Calculation 158
6.5 Conclusion 160
  • Chapter 7 Finite Impulse Response Digital Filter Design 161

7.1 Using Fourier Series in Filter Design 161
7.1.1 Frequency Response and Impulse Response
Coefficients 162
7.1.2 Characteristics of FIR Filters 165
7.1.3 Ideal FIR Impulse Response Coefficients 166
7.2 Windowing Techniques to Improve Design 170
7.3 Parks-McClellan Optimization Procedure 177
7.3.1 Description of the Problem 177
7.3.2 The Remez Exchange Algorithm 179
7.3.3 Using the Parks-McClellan Algorithm 180
7.3.4 Limitations of the Parks-McClellan Algorithm 183
7.4 C Code for FIR Frequency Response Calculation 183
7.5 Conclusion 185
  • Chapter 8 Digital Filter Implementation Using C 187

8.1 Digital Filter Implementation Issues 187
8.1.1 Input and Output Signal Representation 188
8.1.2 Coefficient Representation 190
8.1.3 Retaining Accuracy and Stability 192
8.2 C Code for IIR Filter Implementation 194
8.3 C Code for FIR Filter Implementation 200
8.3.1 Real-Time Implementation of FIR Filters 201
x Practical Analog and Digital Filter Design
8.3.2 Nonreal-Time Implementation of FIR Filters 203
8.4 Filtering Sound Files 205
8.5 Conclusion 207
  • Chapter 9 Digital Filtering Using the FFT 209

9.1 The Discrete Fourier Transform (DFT) 209
9.2 The Fast Fourier Transform (FFT) 214
9.2.1 The Derivation of the FFT 215
9.2.2 The Inverse FFT 217
9.3 C Code for the FFT 218
9.4 Application of FFT to Filtering 221
9.5 Conclusion 225
  • Appendix A Technical References 227
  • Appendix B Filter Design Software and C Code 229
  • Appendix C Filter Design Using C 231
  • Appendix D C Code for Normalized Approximation Functions 233
  • Appendix E C Code for Unnormalized Approximation Functions 239
  • Appendix F C Code for Active Filter Implementation 247
  • Appendix G C Code for IIR Filter Design 253
  • Appendix H C Code for FIR Filter Design 257
  • Appendix I Filtering Sound Files 259
  • About the Author 263
  • Index 265
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