DIGITAL SIGNAL PROCESSING SYSTEM DESIGN

by Kehtarnavaz

• ISBN13: 9780123744906
• ISBN10: 0123744903
• Edition: 2nd
• Format: Paperback
• Copyright: 2008-04-29
• Publisher: Elsevier Science

Summary

This book combines textual and graphical programming to form a hybrid programming approach, enabling a more effective means of building and analyzing DSP systems. The hybrid programming approach allows the use of previously developed textual programming solutions to be integrated into LabVIEW's highly interactive and visual environment, providing an easier and quicker method for building DSP systems. This book is an ideal introduction for engineers and students seeking to develop DSP systems in quick time. Features . The only DSP laboratory book that combines textual and graphical programming . 12 lab experiments that incorporate C/MATLAB code blocks into the LabVIEW graphical programming environment via the MathScripting feature . Lab experiments covering basic DSP implementation topics including sampling, digital filtering, fixed-point data representation, frequency domain processing . Interesting applications using the hybrid programming approach, such as a software-defined radio system, a 4-QAM Modem, and a cochlear implant simulator . CD providing all the lab codes Nasser Kehtarnavaz is Professor of Electrical Engineering at University of Texas at Dallas. He has written numerous papers and five other books pertaining to signal and image processing, and regularly teaches digital signal processing laboratory courses, for which this book is intended. Among his many professional activities, he is Coeditor-in-Chief of Journal of Real-Time Image Processing, and Chair of the Dallas Chapter of the IEEE Signal Processing Society. Dr. Kehtarnavaz is a Fellow of SPIE, a Senior Member of IEEE, and a Professional Engineer. * The only DSP project book that combines textual and graphical programming * 12 Lab projects that incorporate MATLAB code blocks into the LabVIEW graphical programming environment via the MathScripting feature. * Interesting applications such as the design of a cochlear implant simulator and a software-defined radio system.

Author Biography

Nasser Kehtarnavaz is Professor of Electrical Engineering at University of Texas at Dallas

Table of Contents

Preface	p. xi
What's On the CD-ROM?	p. xiii
Introduction	p. 1
Digital Signal Processing Hands-On Lab Courses	p. 2
Organization	p. 3
Software Installation	p. 3
Updates	p. 4
Bibliography	p. 4
LabVIEW Graphical Programming Environment	p. 5
Virtual Instruments (VIs)	p. 5
Front Panel and Block Diagram	p. 5
Icon and Connector Pane	p. 6
Graphical Environment	p. 7
Functions Palette	p. 7
Controls Palette	p. 8
Tools Palette	p. 8
Building a Front Panel	p. 9
Controls	p. 9
Indicators	p. 10
Align, Distribute, and Resize Objects	p. 10
Building a Block Diagram	p. 11
Express VI and Function	p. 11
Terminal Icons	p. 12
Wires	p. 12
Structures	p. 13
For Loop	p. 13
While Loop	p. 14
Case Structure	p. 14
MathScript	p. 14
Grouping Data: Array & Cluster	p. 16
Debugging and Profiling VIs	p. 16
Probe Tool	p. 16
Profile Tool	p. 16
Bibliography	p. 18
Getting Familiar with LabVIEW: Part I	p. 19
Building a Simple VI	p. 20
VI Creation	p. 20
SubVI Creation	p. 25
Using Structures and SubVIs	p. 29
Create an Array with Indexing	p. 33
Debugging VIs: Probe Tool	p. 34
Bibliography	p. 36
Lab Experiments	p. 36
Getting Familiar with LabVIEW: Part II	p. 37
Express VIs Versus Regular VIs	p. 37
Building a System VI with Express VIs	p. 37
Building a System with Regular VIs	p. 45
Hybrid Programming	p. 50
MathScript Feature	p. 50
Call Library Function Feature	p. 51
Building C DLL Using MS Visual Studio	p. 51
Calling C DLL from LabVIEW	p. 52
Profile VI	p. 54
Bibliography	p. 56
Lab Experiments	p. 56
Analog-to-Digital Signal Conversion	p. 57
Sampling	p. 57
Fast Fourier Transform	p. 60
Quantization	p. 62
Signal Reconstruction	p. 65
Bibliography	p. 67
Sampling, Quantization, and Reconstruction	p. 69
Aliasing	p. 69
Fast Fourier Transform	p. 76
Quantization	p. 80
Signal Reconstruction	p. 87
Bibliography	p. 90
Lab Experiments	p. 91
Digital Filtering	p. 93
Digital Filtering	p. 93
Difference Equations	p. 93
Stability and Structure	p. 95
LabVIEW Digital Filter Design Toolkit	p. 97
Filter Design	p. 97
Analysis of Filter Design	p. 98
Fixed-Point Filter Design	p. 98
Multi-rate Digital Filter Design	p. 98
Bibliography	p. 98
FIR/IIR Filtering System Design	p. 99
FIR Filtering System	p. 99
Design FIR Filter with DFD Toolkit	p. 99
Creating a Filtering System VI	p. 101
IIR Filtering System	p. 106
IIR Filter Design	p. 106
Filtering System	p. 110
Building Filtering System Using Filter Coefficients	p. 112
Filter Design Without Using DFD Toolkit	p. 113
Building Filtering System Using Dynamic Link Library (DLL)	p. 115
Point-by-Point Processing	p. 115
Creating DLL in C	p. 118
Calling DLL from LabVIEW	p. 119
Bibliography	p. 120
Lab Experiments	p. 121
Fixed-Point versus Floating-Point	p. 123
Q-format Number Representation	p. 123
Finite Word Length Effects	p. 127
Floating-Point Number Representation	p. 128
Overflow and Scaling	p. 130
Data Types in LabVIEW	p. 130
Bibliography	p. 132
Data Type and Scaling	p. 133
Handling Data Types in LabVIEW	p. 133
Overflow Handling	p. 135
Q-Format Coversion	p. 137
Creating a Polymorphic VI	p. 138
Scaling Approach	p. 140
Digital Filtering in Fixed-Point Format	p. 143
Design and Analysis of Fixed-Point Digital Filtering System	p. 143
Filtering System	p. 146
Fixed-Point IIR Filter Example	p. 150
Bibliography	p. 154
Lab Experiments	p. 154
Adaptive Filtering	p. 157
System Identification	p. 157
Noise Cancellation	p. 158
Bibliography	p. 160
Adaptive Filtering Systems	p. 161
System Identification	p. 161
Least Mean Square (LMS) Algorithm	p. 161
Waveform Chart	p. 163
Shift Register and Feedback Node	p. 163
Noise Cancellation	p. 168
Lab Experiments	p. 173
Frequency Domain Processing	p. 175
Discrete Fourier Transform (DFT) and Fast Fourier Tranform (FFT)	p. 175
Short-Time Fourier Transform (STFT)	p. 176
Discrete Wavelet Transform (DWT)	p. 178
Signal Processing Toolset	p. 180
Bibliography	p. 181
FFT, STFT, and DWT	p. 183
FFT Versus STFT	p. 183
Property Node	p. 189
DWT	p. 190
Bibliography	p. 195
Lab Experiments	p. 195
DSP Implementation Platform: TMS320C6x Architecture and Software Tools	p. 197
TMS320C6X DSP	p. 197
Pipelined CPU	p. 198
C64x DSP	p. 199
C6x DSK Target Boards	p. 201
Board Configuration and Peripherals	p. 201
Memory Organization	p. 202
DSP Programming	p. 203
Software Tools: Code Composer Studio	p. 204
Linking	p. 205
Compiling	p. 205
Bibliography	p. 206
Getting Familiar with Code Composer Studio	p. 207
Code Composer Studio	p. 207
Creating Projects	p. 207
Debugging Tools	p. 214
Bibliography	p. 222
LabVIEW DSP Integration	p. 223
Communication with LabVIEW: Real-Time Data Exchange (RTDX)	p. 223
LabVIEW DSP Test Integration Toolkit for TI DSP	p. 223
Combined Implementation: Gain Example	p. 224
LabVIEW Configuration	p. 226
DSP Configuration	p. 227
Bibliography	p. 230
DSP Integration Examples	p. 231
CCS Automation	p. 231
Digital Filtering	p. 233
FIR Filter	p. 233
IIR Filter	p. 238
Fixed-Point Implementation	p. 244
Adaptive Filtering Systems	p. 248
System Identification	p. 248
Noise Cancellation	p. 252
Frequency Processing: FFT	p. 254
Bibliography	p. 264
DSP System Design: Dual Tone Multi-Frequency (DTMF) Signaling	p. 265
Bibliography	p. 268
Hybrid Programming of Dual Tone Multi-Frequency System	p. 269
DTMF Tone Generator System	p. 269
DTMF Decoder System	p. 273
Bibliography	p. 275
DSP System Design: Software-Defined Radio	p. 277
QAM Transmitter	p. 277
QAM Receiver	p. 280
Ideal QAM Demodulation	p. 280
Frame Synchronization	p. 281
Decision-Based Carrier Tracking	p. 281
Bibliography	p. 284
Hybrid Programming of a 4-QAM Modem System	p. 285
QAM Transmitter	p. 286
QAM Receiver	p. 289
Bibliography	p. 301
DSP System Design: Cochlear Implant Simulator	p. 303
Cochlear Implant System	p. 303
Real-Time Implementation	p. 305
Pre-Emphasis Filter	p. 306
Filterbank for Decomposition and Synthesis	p. 306
Envelope Detection	p. 306
White Noise Excitation	p. 307
Bibliography	p. 308
Hybrid Programming of Cochlear Implant Simulator System	p. 309
Filter Design	p. 310
Bandpass Filter Design	p. 312
Lowpass Filter Design	p. 314
Real-Time Implementation	p. 315
Bibliography	p. 320
Index	p. 321
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