563489578934
Index 751 Demand-assigned multiple-access (DAMA), 590 Dense wavelength division multiplexing(DWDM), 583, 619 Density energy spectral, 50, 64 power spectral, 25, 63–65, 80, 343, 345, 376, 436–437, 475, 601 Derivative, constant phase, 252 Derivative table, 670–671 Designing communication systems, 723 Detector circuits, 274–282 envelope detector, 274–275 frequency modulation detector, 277–282 product detector, 275–277 Detector/detection coherent, 511 differential, 374 envelope, 356, 534 error, 167 frequency modulation, 277 noncoherent, 277, 356, 374, 514, 516 phase, 276 product, 137, 275–277, 534 quadrature, 278 single-sideband envelope, 241 single-sideband square-law, 241 slope, 277 zero-crossing, 281 Deterministic function, 439 Deterministic waveform, 6–7 Deviation, 333, 6963 Device cascaded linear, 608, 609 charge transfer, 257 ideal, 604 memoryless, 21 noise-free, 604 without memory, 704 Difference signal, 498 Differential calculus, 670–671 Differential coding, 174–175 Differential detector, 374 Differential phase-shift keying (DPSK), 359, 517–518 Differential pulse code modulation (DPCM), 141, 152, 194–198, 198 Differential rules, 670 Differential time delay, 89 Digital communication systems, 6 amplitude modulation broadcast, 320–321 carrier trunk, 215 circuit-switched systems, 626–629 development of, 3 digital television, 570, 588, 630, 649–653 filtering, 258 frequency modulation, 351–353 information sources, 5 integrated, 578 modulation index, 357 with packet switching, 629–630 satellite system, 588 signal, 437–439, 591 signaling processing, 93–95, 258, 298, 652 switching, 577 television transmission, 587–589 waveform, 6, 162 words, 525 Digital compact disc (CD), 152 Digital down-converter (DDC), 298 Digital phase-locked loop (DPLL), 283 Digital Radio Mondiale (DRM), 321 Digital signaling, 155–164, 521–525 bandwidth, 160, 521–523 binary signaling, 160–162 bit-error rate, 521–523 multilevel signaling, 162–164, 523–524 noise-free, 177 power spectral density of, 433–435 synchronization, 524–525 time axis of, 220 vector representation, 157–159 Digital subscriber lines (DSL), 215, 577–582 asymmetrical, 578 G.DMT, 578–580 G.Lite, 578–580 high-bit-rate, 578 integrated service digital network, 580–582 symmetrical, 578 very-high-bit-rate, 578 video on demand, 580 Digital-to-analog converter (DAC), 146, 162, 366–367 Digital Video Broadcasting by Satellite, Second Generation (DVB-S2), 588–589 Digital video broadcasting (DVB), 652 Dimension, 156 Dimensionality theorem, 95–97 Diodes light-emitting, 619 probability density function for, 706–707 Dirac delta function, 52–53, 52–55, 675–676, 675–677 properties of, 676–677 weights of, 55 Direct-broadcast satellites (DBS), 587 Direct conversion encoding, 145 Direct conversion receiver, 296–297 Direct current (DC) waveform, 37–38 Direct digital synthesis (DDS), 290, 298 Direct method, 342, 428 Direct sequence (DS), 389–395 DirecTV, 583, 588 Dirichlet conditions, 46 Discontinuous frequency-shift keying, 359, 379 Discrete cosine transform (DCT), 651 Discrete Fourier transform (DFT), 51, 97–98 Discrete distributions, 685, 688–691 Discrete events, 690 Discrete Fourier transforms (DTF), 97–105 continuous Fourier transform, 98–103 Fourier series, 103–105 Discrete multitone (DMT) signaling, 388 Discrete point, 692 Discretely distributed random variables, 692 Discriminator, balanced, 278 Distance, Hamming, 21–22 Distortion amplitude, 87 audio, 89 data signals, 89 filter, caused by, 87 harmonic, 259 intermodulation, 260–261 phase, 87 total harmonic, 260 video, 89 Distortionless channel, 86 Distortionless transmission, 86–89 Distributions, 688–691, 695–704 binomial distributions, 695–698 continuous, 688–691 discrete, 685, 688–691 Gaussian, 416, 698–699, 700, 715 Gaussian distributions, 698–703 normal, 698, 715 point, 685, 688 Poisson distributions, 698 sinusoidal, 703–704, 704–706 sinusoidal distributions, 703–704 theory of, 53 uniform, 703 uniform distributions, 698 Doppler spread, 10 Double balanced mixer, 270 Double-sideband suppressed carrier (DSB-SC), 241, 321–322, 535 Doubler stage, 273 Down converters, 266–272 E Early-late bit synchronizer, 180–181 Early sample, 180 Earth blackbody radiation, 611 Earth-to-satellite transmission, 586 Echo canceller, 579 Effect aliasing, 100 leakage, 100 picket-fence, 100 quieting, 537 threshold, 535
- Page 1498: C-3 Programming in MATLAB 725 4. At
- Page 1502: REFERENCES ABRAMOWITZ, M., and I. A
- Page 1506: References 729 BÖRJESSON P. O., an
- Page 1510: References 731 FIKE, J. L., and G.
- Page 1514: References 733 JENKINS, M. G., and
- Page 1518: References 735 NYQUIST, H., “Cert
- Page 1522: References 737 SHANMUGAN, K. S., Di
- Page 1526: ANSWERS TO SELECTED PROBLEMS NOTE:
- Page 1530: Answers to Selected Problems 741 Ch
- Page 1534: Answers to Selected Problems 743 5-
- Page 1538: Answers to Selected Problems 745 6-
- Page 1542: INDEX A ABC, 649 Absolute bandwidth
- Page 1546: Index 749 Bidirectional cable telev
- Page 1552: 752 Index Effective isotropic radia
- Page 1556: 754 Index In-phase components, 638
- Page 1560: 756 Index Multilevel signaling, 157
- Page 1564: 758 Index Process/processing (cont.
- Page 1568: 760 Index Signal/signaling (cont.)
- Page 1572: 762 Index Two-level data, 165 Two-q
- Page 1576: TABLE 2-2 SOME FOURIER TRANSFORM PA
Index 751<br />
Demand-assigned multiple-access<br />
(DAMA), 590<br />
Dense wavelength division<br />
multiplexing(DWDM), 583, 619<br />
Density<br />
energy spectral, 50, 64<br />
power spectral, 25, 63–65, 80, 343, 345,<br />
376, 436–437, 475, 601<br />
Derivative, constant phase, 252<br />
Derivative table, 670–671<br />
Designing communication systems, 723<br />
Detector circuits, 274–282<br />
envelope detector, 274–275<br />
frequency modulation detector, 277–282<br />
product detector, 275–277<br />
Detector/detection<br />
coherent, 511<br />
differential, 374<br />
envelope, 356, 534<br />
error, 167<br />
frequency modulation, 277<br />
noncoherent, 277, 356, 374, 514, 516<br />
phase, 276<br />
product, 137, 275–277, 534<br />
quadrature, 278<br />
single-sideband envelope, 241<br />
single-sideband square-law, 241<br />
slope, 277<br />
zero-crossing, 281<br />
Deterministic function, 439<br />
Deterministic waveform, 6–7<br />
Deviation, 333, 6963<br />
Device<br />
cascaded linear, 608, 609<br />
charge transfer, 257<br />
ideal, 604<br />
memoryless, 21<br />
noise-free, 604<br />
without memory, 704<br />
Difference signal, 498<br />
Differential calculus, 670–671<br />
Differential coding, 174–175<br />
Differential detector, 374<br />
Differential phase-shift keying (DPSK), 359,<br />
517–518<br />
Differential pulse code modulation (DPCM),<br />
141, 152, 194–198, 198<br />
Differential rules, 670<br />
Differential time delay, 89<br />
Digital communication systems, 6<br />
amplitude modulation broadcast,<br />
320–321<br />
carrier trunk, 215<br />
circuit-switched systems, 626–629<br />
development of, 3<br />
digital television, 570, 588, 630, 649–653<br />
filtering, 258<br />
frequency modulation, 351–353<br />
information sources, 5<br />
integrated, 578<br />
modulation index, 357<br />
with packet switching, 629–630<br />
satellite system, 588<br />
signal, 437–439, 591<br />
signaling processing, 93–95, 258,<br />
298, 652<br />
switching, 577<br />
television transmission, 587–589<br />
waveform, 6, 162<br />
words, 525<br />
Digital compact disc (CD), 152<br />
Digital down-converter (DDC), 298<br />
Digital phase-locked loop (DPLL), 283<br />
Digital Radio Mondiale (DRM), 321<br />
Digital signaling, 155–164, 521–525<br />
bandwidth, 160, 521–523<br />
binary signaling, 160–162<br />
bit-error rate, 521–523<br />
multilevel signaling, 162–164, 523–524<br />
noise-free, 177<br />
power spectral density of, 433–435<br />
synchronization, 524–525<br />
time axis of, 220<br />
vector representation, 157–159<br />
Digital subscriber lines (DSL), 215, 577–582<br />
asymmetrical, 578<br />
G.DMT, 578–580<br />
G.Lite, 578–580<br />
high-bit-rate, 578<br />
integrated service digital network,<br />
580–582<br />
symmetrical, 578<br />
very-high-bit-rate, 578<br />
video on demand, 580<br />
Digital-to-analog converter (DAC), 146, 162,<br />
366–367<br />
Digital Video Broadcasting by Satellite,<br />
Second Generation (DVB-S2),<br />
588–589<br />
Digital video broadcasting (DVB), 652<br />
Dimension, 156<br />
Dimensionality theorem, 95–97<br />
Diodes<br />
light-emitting, 619<br />
probability density function for, 706–707<br />
Dirac delta function, 52–53, 52–55, 675–676,<br />
675–677<br />
properties of, 676–677<br />
weights of, 55<br />
Direct-broadcast satellites (DBS), 587<br />
Direct conversion encoding, 145<br />
Direct conversion receiver, 296–297<br />
Direct current (DC) waveform, 37–38<br />
Direct digital synthesis (DDS), 290, 298<br />
Direct method, 342, 428<br />
Direct sequence (DS), 389–395<br />
DirecTV, 583, 588<br />
Dirichlet conditions, 46<br />
Discontinuous frequency-shift keying,<br />
359, 379<br />
Discrete cosine transform (DCT), 651<br />
Discrete Fourier transform (DFT), 51, 97–98<br />
Discrete distributions, 685, 688–691<br />
Discrete events, 690<br />
Discrete Fourier transforms (DTF), 97–105<br />
continuous Fourier transform, 98–103<br />
Fourier series, 103–105<br />
Discrete multitone (DMT) signaling, 388<br />
Discrete point, 692<br />
Discretely distributed random variables, 692<br />
Discriminator, balanced, 278<br />
Distance, Hamming, 21–22<br />
Distortion<br />
amplitude, 87<br />
audio, 89<br />
data signals, 89<br />
filter, caused by, 87<br />
harmonic, 259<br />
intermodulation, 260–261<br />
phase, 87<br />
total harmonic, 260<br />
video, 89<br />
Distortionless channel, 86<br />
Distortionless transmission, 86–89<br />
Distributions, 688–691, 695–704<br />
binomial distributions, 695–698<br />
continuous, 688–691<br />
discrete, 685, 688–691<br />
Gaussian, 416, 698–699, 700, 715<br />
Gaussian distributions, 698–703<br />
normal, 698, 715<br />
point, 685, 688<br />
Poisson distributions, 698<br />
sinusoidal, 703–704, 704–706<br />
sinusoidal distributions, 703–704<br />
theory of, 53<br />
uniform, 703<br />
uniform distributions, 698<br />
Doppler spread, 10<br />
Double balanced mixer, 270<br />
Double-sideband suppressed carrier<br />
(DSB-SC), 241, 321–322, 535<br />
Doubler stage, 273<br />
Down converters, 266–272<br />
E<br />
Early-late bit synchronizer, 180–181<br />
Early sample, 180<br />
Earth blackbody radiation, 611<br />
Earth-to-satellite transmission, 586<br />
Echo canceller, 579<br />
Effect<br />
aliasing, 100<br />
leakage, 100<br />
picket-fence, 100<br />
quieting, 537<br />
threshold, 535
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