LabVIEW Signal Processing [With Contains an Evaluation Version of LabVIEW 4.1]

Contents......Page 12
Preface......Page 22
Introduction......Page 38
 Sampling Signals......Page 50
 Quantization......Page 51
 Sampling Considerations......Page 53
 Why Do You Need Antialiasing Filters?......Page 57
 Why Use Decibels?......Page 58
 Activity 1-1......Page 60
 Overview of the Analysis Library......Page 62
 Real-World Application: Particle Impact Noise Detection (PIND) Testing of Pressure Sensors used in the Space Shuttle Main Engine......Page 68
 Normalized Frequency......Page 84
 Activity 2-1......Page 88
 Wave and Pattern Vls......Page 90
 Activity 2-2......Page 92
 Activity 2-3......Page 95
 Activity 2-4......Page 97
 Real-World Application: Signal Processing in Industrial Testing......Page 105
 The Discrete Fourier Transform (DFT) and the Fast Fourier Transform (FFT)......Page 110
 Frequency Spacing and Symmetry of the DFT/FFT......Page 115
 Activity 3-1......Page 123
 The Power Spectrum......Page 127
 Activity 3-2......Page 131
 Real-World Application: The Statistical Properties of Acoustical Fields in a Reverberation Room......Page 138
 About Spectral Leakage and Smoothing Windows......Page 146
 Characteristics of Different Types of Window Functions......Page 150
 Activity 4-1......Page 160
 Activity 4-2......Page 162
 Activity 4-3......Page 165
 Activity 4-4......Page 167
 Real-World Application: Extracting Features from CTFM Sonar......Page 173
 The Measurement Vls......Page 182
 Calculating the Frequency Spectrum of a Signal......Page 183
 Activity 5-1......Page 184
 Coherent Gain (CG) and Equivalent Noise Bandwidth (ENBW)......Page 186
 Activity 5-2......Page 191
 Harmonic Distortion......Page 194
 Activity 5-3......Page 198
 Real-World Application: Periodic Signal Analyzer......Page 207
 Real-World Application: Voltage Fluctuation on High Voltage Network......Page 212
 Ideal Filters......Page 220
 Practical (Nonideal) Filters......Page 222
 Advantages of Digital Filters over Analog Filters......Page 225
 IIR and FIR Filters......Page 226
 Infinite Impulse Response Filters......Page 229
 Activity 6-1......Page 237
 Activity 6-2......Page 240
 Activity 6-3......Page 244
 The Transient Response of IIR Filters......Page 246
 Activity 6-4......Page 249
 Finite Impulse Response Filters......Page 251
 Activity 6-5......Page 253
 Digital Filter Design Toolkit......Page 256
 Real-World Application: LabVIEW Exercise to Model and Analyze ECG/EKG Data......Page 262
 About Curve Fitting......Page 276
 Activity 7-1......Page 280
 Activity 7-2......Page 282
 Activity 7-3......Page 285
 General Least Square Linear Fit......Page 287
 Activity 7-4......Page 290
 Activity 7-5......Page 294
 Nonlinear Levenberg-Marquardt Fit......Page 297
 Activity 7-6......Page 299
 Fitting a Curve to Gaussian (Normal) Data Points......Page 303
 Activity 7-7......Page 306
 Real-World Application: LabVIEW Signal Processing in Biomechanics......Page 313
 Linear Systems and Matrix Analysis......Page 326
 Activity 8-1......Page 335
 Activity 8-2......Page 341
 Basic Matrix Operations and Eigenvalue-Eigenvector Problems......Page 344
 Activity 8-3......Page 351
 Activity 8-4......Page 354
 Activity 8-5......Page 356
 Matrix Inverse and Solving Systems of Linear Equations......Page 359
 Activity 8-6......Page 362
 Activity 8-7......Page 364
 Matrix Factorization......Page 365
 Activity 8-8......Page 367
 Activity 8-9......Page 370
 Real-World Application: Joint Time Frequency Analysis of Electromyographic Signals for Investigating Neuromuscular Coordination......Page 374
 Real-World Application: The Science ToolBox®......Page 388
 Probability and Statistics......Page 398
 Statistics......Page 400
 Activity 9-1......Page 410
 Probability......Page 415
 Activity 9-2......Page 421
 Real-World Application: Signal Processing of Biomedical Data Using PC......Page 427
 Linear, Time-Invariant Control Systems......Page 440
 Activity 10-1......Page 449
 Activity 10-2......Page 453
 Frequency Domain Analysis......Page 457
 Activity 10-3......Page 459
 Nyquist Plot......Page 464
 Root-Locus......Page 465
 Activity 10-4......Page 467
 Linear State Feedback......Page 471
 Activity 10-5......Page 474
 Real-World Application: Development of Full Order Observers and State Feedback Control for the Inverted Pendulum......Page 484
 Review of Digital Filters......Page 500
 The Digital Filter Design Toolkit......Page 502
 Designing IIR Filters......Page 509
 Activity 11-1......Page 514
 Designing FIR Filters......Page 521
 Activity 11-2......Page 525
 Analyzing Your Filter Design......Page 533
 Activity 11-3......Page 538
 Format of Filter Coefficient Text Files......Page 544
 Real-World Application: A Virtual Sound-Level Meter......Page 550
 Organization of the G Math Toolkit......Page 560
 Parser VIs......Page 561
 Activity 12-1......Page 569
 Activity 12-2......Page 572
 Solving Differential Equations......Page 576
 Activity 12-3......Page 580
 Activity 12-4......Page 586
 Activity 12-5......Page 590
 Activity 12-6......Page 591
 Activity 12-7......Page 594
 Real-World Application: Using LabVIEW and the G Math Toolkit to Develop a User-Configurable Telemetry Program......Page 598
 Real-World Application: An Interactive Instrumentation System for Wafer Emissivity Estimation......Page 608
Appendix A: Mathematical Background......Page 614
Appendix B: Error Codes......Page 620
Appendix C: Frequently Asked Questions......Page 632
Appendix D: References......Page 636
Appendix E: National Instruments Contact Information, Resources, and Toolkits......Page 640
Glossary......Page 662
 C......Page 663
 D......Page 664
 H......Page 665
 L......Page 666
 N......Page 667
 P......Page 668
 R......Page 669
 S......Page 670
 V......Page 671
 Z......Page 672
 C......Page 674
 D......Page 675
 E......Page 676
 G......Page 677
 K......Page 678
 M......Page 679
 P......Page 680
 S......Page 681
 U......Page 682
 Z......Page 683