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758 Index Process/processing (cont.) stochastic, 415 uncorrelated, 476 white Gaussian-noise, 450 white-noise, 435–436 wide-sense stationary, 444–445 Product, time-bandwidth, 467 Product detection, 137, 275–277, 532, 534 Professional channel, 637 Programmable read-only memory (PROM), 624 Propagation of electromagnetic waves, 12–17 ground-wave, 13 ionospheric scatter, 17 line-of-sight, 612–613 sky-wave, 15 through ionosphere, 15 Pseudonoise (PN) code, 390, 395 Pseudoternary, 165 Public switched telephone network (PSTN), 570, 583 Pull-in range, 283, 286 Pulse exponential, spectrum of, 47 horizontal, 636–637 narrow, 631, 636–637 rectangular, 56, 61–62, 91–92, 328 sync, 641, 651 synchronization, 651 triangular, 59–60, 62 wide, 631 Pulse amplitude modulation (PAM), 133–141 clean, 142 flat-top, spectrum for, 139 instantaneous sampled, 138 instantaneous sampling, 137–141 natural sampling, 133–137 quantized, 142 Pulse code modulation (PCM), 133, 141–151, 591 adaptive, 152 bandwidth of, 146–148 differential, 152 encoding, 142–145 linear, 152 noise, effects of, 148–152 nonuniform, 152–155 output signal-to-noise ratio for, 525–530 practical, 145–146 quantizing, 142–145 recovered analog signal at output of, 529 sampling, 142–145 for telephone systems, 151 Pulse duration modulation (PDM), 220 Pulse position modulation (PPM), 220–224 Pulse time modulation (PTM), 220–224 Pulse width modulation (PWM), 220–224, 319 Q Q function, 700–701 Quadrature amplitude modulation (QAM), 313, 370–371, 371, 376 Quadrature components, 638 Quadrature detector, 278 Quadrature Fourier series, 72–73 Quadrature modulation (QM), 240, 241, 244, 292 Quadrature phase-shift keying (QPSK), 313, 367–370, 519–521 offset, 371, 374 π/4, 374 Quadrature transform, 46 Qualcomm, 628 Quantized pulse amplitude modulation signal, 142 Quantizing, 141, 142–145 noise, 142, 195 nonuniform, 152–155 uniform, 142 Quasi-static approximation, 343 Quieting effect, 537 R Radiation, 606, 611 Radio, 583, 621–622 Radio broadcast data (RBDC) system, 349 Radio frequency (RF), 13, 43, 653 Raised cosine-rolloff filtering, 191, 376–378 intersymbol interference (ISI), 189–194 Nyquist, 189, 191–192, 194 Ramp encoding, 145 Random-access memory (RAM), 290 Random noise, 150, 439, 534 Random process, 415, 475 bandpass, 476 complex, 423–424 continuous, 416 definition of, 415–416 ergodic, 419–420 function of, 415 Gaussian, 448 power spectral density for, 425 real, 415 single-sideband, 457 uncorrelated, 422 wide-sense stationary, 439 Random signal, 439 Random start-up phase, 453 Random variable map, 415 Random variables, 416, 494, 685 continuously distributed, 688 discretely distributed, 692 functional transformations of, 704–708 Gaussian, 451, 690, 700–702 moments of, 693 orthogonal, 711 two, sum of, 714 uniformly distributed, 715–716 Random waveform, 7, 34 Range capture, 283 hold-in, 283, 286 lock, 283 pull-in, 283, 286 slant, 614 Raster scanning, 630 Rate bit, 157, 649 bit error, 10, 26, 493, 523 code, 23 of information, 19 maximum locked sweep, 283 Nyquist, 133 source, 19 symbol, 157, 367 Ratio average-signal-to-average-noise, 529 carrier-to-noise, 609, 611 decibel signal-to-noise, 42 Rayleigh probability density function, 462 RC low-pass filtering, 85, 187 equivalent bandwidth for, 446 group delay for, 252 intersymbol interference caused by, 187 with nonreturn-to-zero signaling, 504 output autocorrelation for, 442 power spectral density for, 442 root-mean-square bandwidth for, 446 signal-to-noise ratio at output of, 443 Read-only memory (ROM), 290 Real bandpass process, 453 Real random process, 415 Real roots, 713 Real signal, spectral symmetry of, 48 Real vectors, 713 Received signal plus noise, 254 power, 597–600 power of, 597 Receiver in band on channel, 351 circuitry, 511 communication systems, subsystem of, 8 direct conversion, 296–297 generalized, 292–296 input, 498 interference in, 297 interference with, 297 superheterodyne, 292–296 zero-IF, 296–297 Receiving antennas, 587 Reception, matched-filter, 498 Reciprocal element, 599 Reconstruction algorithm, 93 Recovered analog signal, 149
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Abbreviations AC ADC ADM AM ANSI AP
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DIGITAL AND ANALOG COMMUNICATION SY
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CONTENTS PREFACE LIST OF SYMBOLS xi
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Contents v 2-8 Discrete Fourier Tra
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Contents vii 4-16 Transmitters and
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Contents ix 6-10 Appendix: Proof of
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Contents xi 8-11 Wireless Data Netw
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PREFACE Continuing the tradition of
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Preface xv THE PRACTICAL APPLICATIO
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LIST OF SYMBOLS There are not enoug
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List of Symbols xix l an integer n
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List of Symbols xxi DEFINED FUNCTIO
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C h a p t e r INTRODUCTION CHAPTER
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Sec. 1-1 Historical Perspective 3 s
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Sec. 1-2 Digital and Analog Sources
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Sec. 1-4 Organization of the Book 7
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Sec. 1-6 Block Diagram of a Communi
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Sec. 1-7 Frequency Allocations 11 T
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Sec. 1-8 Propagation of Electromagn
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Sec. 1-8 Propagation of Electromagn
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Sec. 1-9 Information Measure 17 In
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Sec. 1-10 Channel Capacity and Idea
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Sec. 1-11 Coding 21 Transmitter Noi
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Sec. 1-11 Coding 23 Convolutional C
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Sec. 1-11 Coding 25 0 1 0 (00) Path
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Sec. 1-11 Coding 27 10 -1 P e = Pro
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Sec. 1-11 Coding 29 TABLE 1-4 CODIN
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Problems 31 Solution: Using Eq. (1-
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Problems 33 1-17 Using the definiti
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Sec. 2-1 Properties of Signals and
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Sec. 2-2 Fourier Transform and Spec
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( ( Sec. 2-2 Fourier Transform and
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` Sec. 2-2 Fourier Transform and Sp
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Sec. 2-3 Power Spectral Density and
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Sec. 2-3 Power Spectral Density and
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Sec. 2-4 Orthogonal Series Represen
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Sec. 2-4 Orthogonal Series Represen
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Sec. 2-5 Fourier Series 71 2-5 FOUR
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Sec. 2-5 Fourier Series 73 where th
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Sec. 2-5 Fourier Series 75 Imaginar
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Sec. 2-5 Fourier Series 77 But the
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Sec. 2-5 Fourier Series 79 The spec
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Sec. 2-5 Fourier Series 81 The PSD
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Sec. 2-6 Review of Linear Systems 8
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Sec. 2-7 Bandlimited Signals and No
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Sec. 2-8 Discrete Fourier Transform
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Sec. 2-9 Bandwidth of Signals 105 N
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Sec. 2-9 Bandwidth of Signals 107 m
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Sec. 2-9 Bandwidth of Signals 109 m
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Sec. 2-9 Bandwidth of Signals 111 w
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Sec. 2-11 Study-Aid Examples 113 2-
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Sec. 2-11 Study-Aid Examples 115 SA
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Problems 117 b. Given the RC low-pa
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Problems 119 Sinusoidal current sou
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Problems 121 w(t) A -t 2 -t 1 t 1 t
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Problems 123 where A 1 , A 2 , v1,
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Problems 125 2-57 Show that the qua
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Problems 127 ★ 2-70 Assume that v
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ƒ ƒ Problems 129 2-82 The signal
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Problems 131 2-97 Given the low-pas
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Sec. 3-2 Pulse Amplitude Modulation
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Sec. 3-3 Pulse Code Modulation 141
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PCM transmitter (analog-to-digital
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Sec. 3-4 Digital Signaling 155 wher
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Sec. 3-4 Digital Signaling 157 Eq.
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Q Sec. 3-4 Digital Signaling 159 s(
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Sec. 3-4 Digital Signaling 161 1.5
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Sec. 3-4 Digital Signaling 163 Bina
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Sec. 3-5 Line Codes and Spectra 165
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Sec. 3-6 Intersymbol Interference 1
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Sec. 3-7 Differential Pulse Code Mo
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DPCM transmitter Analog input signa
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Sec. 3-8 Delta Modulation 199 DM tr
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Sec. 3-8 Delta Modulation 201 Granu
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Sec. 3-8 Delta Modulation 203 This
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Analog input signal Low-pass filter
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Analog input signals Channel 1 (fro
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Low-level distorted TDM input Ampli
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Sec. 3-9 Time-Division Multiplexing
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1 1 1 1 1 30 digital inputs, 64 kb/
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Sec. 3-10 Packet Transmission Syste
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Sec. 3-11 Pulse Time Modulation: Pu
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Sec. 3-11 Pulse Time Modulation: Pu
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Sec. 3-13 Study-Aid Examples 225 (a
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Sec. 3-13 Study-Aid Examples 227 (d
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Problems 229 ★ 3-7 Assume that an
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Problems 231 How does the PSD for t
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Problems 233 (a) Using a PC, calcul
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Problems 235 and w 3 (t) = -(t - 1)
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C h a p t e r BANDPASS SIGNALING PR
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Sec. 4-1 Complex Envelope Represent
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Sec. 4-3 Spectrum of Bandpass Signa
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AM A c |1+m(t2| e 0, m (t) 7-1 L c
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Sec. 4-4 Evaluation of Power 245 Re
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Sec. 4-4 Evaluation of Power 247 wh
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Sec. 4-5 Bandpass Filtering and Lin
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Sec. 4-5 Bandpass Filtering and Lin
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Sec. 4-6 Bandpass Sampling Theorem
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Sec. 4-8 Classification of Filters
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Sec. 4-8 Classification of Filters
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Sec. 4-9 Nonlinear Distortion 259 T
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Sec. 4-9 Nonlinear Distortion 261 t
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Sec. 4-9 Nonlinear Distortion 263 w
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Sec. 4-10 Limiters 265 v out Ideal
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Sec. 4-11 Mixers, Up Converters, an
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Sec. 4-12 Frequency Multipliers 273
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Sec. 4-13 Detector Circuits 275 the
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Sec. 4-13 Detector Circuits 277 Det
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Sec. 4-13 Detector Circuits 279 Fre
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Sec. 4-13 Detector Circuits 281 Thi
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Sec. 4-14 Phase-Locked Loops and Fr
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Sec. 4-16 Transmitters and Receiver
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Sec. 4-17 Software Radios 297 Zero-
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Sec. 4-19 Study-Aid Examples 301 No
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Sec. 4-19 Study-Aid Examples 303 Th
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PROBLEMS Problems 305 4-1 Show that
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Problems 307 where m(t) is the modu
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Problems 309 Assume that the input
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Problems 311 4-39 Rework Prob. 4-38
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C h a p t e r AM, FM, AND DIGITAL M
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Sec. 5-1 Amplitude Modulation 315 m
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Sec. 5-1 Amplitude Modulation 317 v
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Sec. 5-2 AM Broadcast Technical Sta
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Sec. 5-3 Double-Sideband Suppressed
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Sec. 5-4 Costas Loop and Squaring L
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Sec. 5-5 Asymmetric Sideband Signal
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Sec. 5-6 Phase Modulation and Frequ
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Sec. 5-7 Frequency-Division Multipl
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Sec. 5-8 FM Broadcast Technical Sta
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Sec. 5-9 Binary Modulated Bandpass
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( ( Sec. 5-9 Binary Modulated Bandp
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Sec. 5-10 Multilevel Modulated Band
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TABLE 5-7 Data V.32BIS AND V.33 MOD
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Sec. 5-11 Minimum-Shift Keying and
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Sec. 5-12 Orthogonal Frequency Divi
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Sec. 5-12 Orthogonal Frequency Divi
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Sec. 5-13 Spread Spectrum Systems 3
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Sec. 5-15 Study-Aid Examples 397 so
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Sec. 5-15 Study-Aid Examples 399 SA
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PROBLEMS Problems 401 ★ 5-1 An AM
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Problems 403 v 3 (t) Low-pass filte
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Problems 405 5-25 A transmitter pro
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Problems 407 5-41 A frequency modul
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Problems 409 FM receiver FM detecto
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Problems 411 (d) Sketch the wavefor
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Problems 413 (a) Show that the Gaus
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Sec. 6-1 Some Basic Definitions 415
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Sec. 6-2 Power Spectral Density 425
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` Sec. 6-2 Power Spectral Density 4
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Sec. 6-3 DC and RMS Values for Ergo
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Sec. 6-4 Linear Systems 439 Example
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Sec. 6-4 Linear Systems 441 x (t) h
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Sec. 6-4 Linear Systems 443 Example
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Sec. 6-5 Bandwidth Measures 445 The
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Sec. 6-6 The Gaussian Random Proces
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Sec. 6-6 The Gaussian Random Proces
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Sec. 6-7 Bandpass Processes 451 or,
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Sec. 6-7 Bandpass Processes 453 cer
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Sec. 6-7 Bandpass Processes 455 p v
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Sec. 6-7 Bandpass Processes 457 12.
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Sec. 6-7 Bandpass Processes 459 Pro
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Sec. 6-7 Bandpass Processes 461 Thu
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Sec. 6-7 Bandpass Processes 463 f R
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` ` Sec. 6-8 Matched Filters 465 Pr
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Sec. 6-8 Matched Filters 467 Equati
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Sec. 6-8 Matched Filters 469 occur
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Sec. 6-8 Matched Filters 471 so whi
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Sec. 6-8 Matched Filters 473 r(t)=s
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Sec. 6-9 Summary 475 6-9 SUMMARY A
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` ` ` Sec. 6-10 Appendix: Proof of
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` Sec. 6-11 Study-Aid Examples 479
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Problems 481 SA6-4 PSD for a Bandpa
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Problems 483 The power of n 1 (t) i
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Problems 485 1 2 x (f) = e N 0, ƒ
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Problems 487 6-42 A bandpass WSS ra
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Problems 489 6-54 A narrowband-sign
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Problems 491 6-60 Let be a wideband
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Sec. 7-1 Error Probabilities for Bi
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Sec. 7-2 Performance of Baseband Bi
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Sec. 7-3 Coherent Detection of Band
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Sec. 7-4 Noncoherent Detection of B
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Sec. 7-5 Quadrature Phase-Shift Key
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Sec. 7-6 Comparison of Digital Sign
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Sec. 7-6 Comparison of Digital Sign
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Sec. 7-7 Output Signal-to-Noise Rat
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TABLE 7-2 COMPARISON OF ANALOG SIGN
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Sec. 7-11 Study-Aid Examples 553 1.
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Sec. 7-11 Study-Aid Examples 555 1.
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Sec. 7-11 Study-Aid Examples 557 by
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Sec. 7-11 Study-Aid Examples 559 (d
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Problems 561 7-5 A whole binary com
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Problems 563 (a) Draw a block diagr
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Problems 565 where u c is the start
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Problems 567 (c) Plot (S/N) out vs.
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C h a p t e r WIRE AND WIRELESS COM
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Sec. 8-2 Telephone Systems 571 Tele
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Sec. 8-2 Telephone Systems 573 The
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Sec. 8-2 Telephone Systems 575 Subs
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Sec. 8-3 Digital Subscriber Lines (
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Sec. 8-5 Satellite Communication Sy
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585 Microwave relay Communication s
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Sec. 8-6 Link Budget Analysis 597 t
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Sec. 8-6 Link Budget Analysis 599 T
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ƒ ƒ Sec. 8-6 Link Budget Analysis
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ƒ ƒ Sec. 8-6 Link Budget Analysis
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Sec. 8-6 Link Budget Analysis 605 o
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Sec. 8-6 Link Budget Analysis 607 o
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Sec. 8-6 Link Budget Analysis 609 w
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Sec. 8-6 Link Budget Analysis 611 U
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Sec. 8-6 Link Budget Analysis 613 E
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Sec. 8-6 Link Budget Analysis 615 2
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Sec. 8-6 Link Budget Analysis 617 F
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Sec. 8-7 Fiber-Optic Systems 619 fi
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Sec. 8-8 Cellular Telephone Systems
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TABLE 8-10 1G MAJOR ANALOG FDMA CEL
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TABLE 8-11 2G MAJOR DIGITAL CELLULA
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Sec. 8-9 Television 631 Camera Targ
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Sec. 8-9 Television 633 The composi
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Sec. 8-9 Television 635 Composite b
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Sec. 8-9 Television 637 pulses. The
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Sec. 8-9 Television 639 from the qu
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Sec. 8-9 Television 641 the x-axis
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Sec. 8-9 Television 643 1 Max. carr
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TABLE 8-13 U.S. TELEVISION AND CABL
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647 52 PP 698.00 - 704.00 390.00 -
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Sec. 8-9 Television 649 encryption
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Sec. 8-9 Television 651 Fig. 5-33,
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Sec. 8-10 Cable Data Modems 653 •
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Sec. 8-11 Wireless Data Networks 65
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Sec. 8-13 Study-Aid Examples 657 TA
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Sec. 8-13 Study-Aid Examples 659 Th
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Sec. 8-13 Study-Aid Examples 661 ca
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Problems 663 8-10 A digital TV stat
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Problems 665 ★ 8-26 A TV set is c
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Problems 667 the IF band of the sat
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A p p e n d i x MATHEMATICAL TECHNI
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A-4 Integral Calculus 671 d sin ax
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A-5 Integral Tables 673 L x2 cos x
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A-8 The Dirac Delta Function 675 A-
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A-9 Tabulation of Sa(x) = (sin x)/x
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A-10 Tabulation of Q (z) 679 z Q(z)
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B-2 Sets 681 used when conversing w
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B-3 Probability and Relative Freque
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B-5 Cumulative Distribution Functio
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B-6 Ensemble Average and Moments 69
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B-7 Examples of Important Distribut
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B-8 Functional Transformations of R
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B-8 Functional Transformations of R
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B-9 Multivariate Statistics 709 B-9
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B-9 Multivariate Statistics 711 Pro
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B-9 Multivariate Statistics 713 x 1
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B-9 Multivariate Statistics 715 Cen
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Problems 717 ★ B-4 A die is tosse
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Problems 719 B-20 Let x be a random
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Problems 721 (a) Verify that f(x 1
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A p p e n d i x USING MATLAB MATLAB
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C-3 Programming in MATLAB 725 4. At
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REFERENCES ABRAMOWITZ, M., and I. A
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References 729 BÖRJESSON P. O., an
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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 1550: Index 751 Demand-assigned multiple-
Page 1554: Index 753 carrier, 238 definition,
Page 1558: Index 755 link budget evaluation, 6
Page 1562: Index 757 P Packets, 594 data trans
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
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