PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

684 Index

Sinusoidal input, fi lters and, 563–564

Sinusoidal signals, 14, 21, 492

Sinusoidal waves, 17, 223, 225–227, 233

Slope, 33–34

Sound fi les, types of, 54

Sound waves, 54

Source network

Norton’s, 125

Thevenin’s, 124

Source transformation

AC ci rc u it, 253

characteristics of, 118–119, 254, 355

theorem, 225

Thevenin’s, 121

voltage, 122–123

specplot function, 372

specpsd function, 369, 371

Spectra analysis, 321

Spectral distribution, 321

Spectrogram, 369

Spectrum

AM, 443–447

amplitude, 327

analyzer, 320

phase, 321, 327–328, 470

PM, 443–447

power, 327–328, 492, 588

two-sided, 327

spectrum function, 371

Speech fi le, types of, 54–55, 369–370

s-plane, 584

Square waves, 223, 321

s-Shifting, 347

Stable discrete system, 458

Standard deviation, 45

Star, defi ned, 261

Steady-state conditions

examples of, 127, 200–204

impact of, 187, 190

Steady-state response, 102–103, 116, 127, 129

Steady-steady

current, 116

voltage, 115

stem function, 27

stepfun(n, no) function, 28

Step functions

characteristics of, 12, 14, 472

discrete, 70–71

in time domain, 357

Step invariant technique, 586

Step response, digital fi lter, 586

Stochastic signals, 45

Stop band

characteristics of, 563–565

fi lters, 561–562, 577

frequency, 565

ripple, 565, 583, 588

Superconductors, 105 –106

Superposition principles, 257–258, 330

Superposition solution, 119–120

Superposition theorem, 118–119, 225

Switching, 127

Switch in Laplace transform system, examples

of, 423–426, 428–443

Symbolic solver, 204–208

Symmetric functions, 22–23

Symmetric signals, 2

Symmetry, 327, 329, 334, 589

Synthesis, defi ned, 596

System analysis, 17

System function, 564

System transfer function, 337, 561

T

Taylor’s expansion series, 226

Telecommunication signals

analog, 88

characterized, 21

discrete, 88–90

Thales, 101

Theorems

Cauchy’s residue, 483

circuit, 225

direct current (DC), 225

Lerch’s, 346

maximum power, 126, 225

modulation, 334, 470

Norton’s, 119–120, 225, 252, 254–255

Nyquist, 587

Nyquist/Shannon, 4

Parseval’s, 321, 324–325, 339, 471

sampling, 4, 44

source transformation, 225

super posit ion, 118 –119, 225

Thevenin’s, 119–120, 124, 127, 169, 225,

252–254

value, 321, 349, 436–439

Thermal energy, 107

Thevenin’s theorem, 119–120, 124, 127, 169, 225,

252–254

Thevenin’s voltage VTH, 252

Third-order fi lters

Butterworth IIR fi lters, 596, 649–650

Butterworth LPF, 643–646

examples of, 625–632

Thomason, J. J., 104

CRC_47760_Index.indd 684CRC_47760_Index.indd 684 7/18/2008 3:10:51 PM7/18/2008 3:10:51 PM