563489578934

750 Index
Coding/codes (cont.)
channel, 9, 20
conventional, 23–25
convolutional, 21, 26
cyclic, 22
differential, 174
forward-error-correction, 597
gain, 26
Golay, 22, 26
Hamming, 22
interframe, 651
with interleaving, 26
maximal–length, 22
multi-level modulation with, 28–30
performance of, 26–28
predictive frame, 651
process of, 20–21
pseudonoise, 390, 395
purpose of, 20
rate, 23
redundancy time of, 26
Reed-Solomon, 22
Reed–Müller, 22
source, 9, 20
threshold, 26
turbo, 28
waveform, 204
Coefficients
binomial, 697
correlation, 711
Fourier, 77, 79, 97
Coherent detection, 511
Coils, loading, 219
Collision, 594
Color, 640, 649
Colored Gaussian noise, 498–499
Combine data, 133
Comcast, 656
Common carrier, 570
Common signaling channel (CSC), 591–592
Communication satellites, 586
Communication systems
analog, 6
analyzing, 723
block diagram of, 8–10
channel, subsystem of, 8
constraints of, 2
designing, 723
digital, 6
fiber-optic, 511
with forward error correction, 20–21
high-frequency, 324
historical perspective of, 3–5
ideal, 19–20
multilevel, 523
performance of, 492
receiver, subsystem of, 8
satellite, 590
subsystems of, 8
transmitter, subsystem of, 8
Compact disc (CD), digital, 152
Compandor, 155
Complex envelope, 238–241
Complex Fourier series, 71–72
Complex random process, 423–424
Compound events, 682
Compression, 152–155
Concentrate data, 210
Conditional probability, 684–685
Conditional probability density function, 494
Constant
amplitude, 252
phase derivative, 252
of random variable map, 415
time, 86
Constraint length, 23
Continuous distributions, 688–691
Continuous Fourier transform (CFT), 98–103
Continuous frequency-shift keying, 360,
378–379
Continuous random process, 416
Continuous variable slope delta modulation,
203–204
Continuously distributed random variables, 688
Continuously variable slope delta modulation
(CVSD), 204
Conventional codes, 23–25
Conversion
AM-to-PM, 250
analog-to-digital, 297–298
down, 267–268
PM-AM, 250
Converter
analog-to-digital, 145, 198
digital down-, 298
digital-to-analog, 146, 162, 366–367
up, 267
Convolution, 60–63, 83
code, 21, 26
interleavers, 26
of rectangular pulse, 61–62
of triangular pulse, 62
of waveform, 60
Coordinate transformation, 713
Correlation, 711
coefficients, 711
functions, 420–423
processing, 469–471
Cosmic noise, 611
Costas loop, 322–324
Costas phase-locked loop, 322–323
Counting encoding, 145
Coupling loss, 619
Covariance, 711–712
Cross-correlation function, 421, 424, 475
output, 441
properties, 422
Cross-modulation, 263
Crosstalk, 206
Crystal filter, 257
Cummulative distribution functions (CDF),
685–691, 700, 701–702, 715
distributions, 688–691
multivariate, 709–711
N-dimensional, 709
properties of, 688
Cyclic code, 22
D
Damped sinusoid, 51
Data
binary, 165
combine, 133
concentrate, 210
decoded, 359
multiple access, 589–595
multiplex, 133
network, 594
sequences, 517
two-level, 165
Data signals distortion, 89
David Sarnoff Research Center, 649
Decibel, 41–42
Decoded data, 359, 517
Decoding algorithm, 24
Decompression, 155
Dedicated leased circuit, 570
Deemphasis, 346
in angle-modulated systems, 346–348
filter, 546
frequency modulation systems with, 545–547
Definite integrals, 673–674
Definition frequency, 45
Delay
carrier, 252
carrier time, 252
envelope, 252
group, 252
group time, 252
phase, 252
spread, 10
time, 87, 89
Delta-coded encoding, 145
Delta function
Dirac, 52–53, 55, 675–676
evensided, 676–677
Kronecker, 68
left-sided, 676
Delta modulation (DM), 141, 152, 198–206
adaptive, 203–204
continuous variable slope, 203–204
continuously variable slope, 204
design of, 202
granular noise, 200–203
slope overload noise, 200–203
speech coding, 204–206
vector frequency, 203