Bandpass Digital Transmission Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Fourteen Bandpass Digital Transmission

Copyright © The McGraw-Hill Companies, Inc Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Binary modulated waveforms (a) ASK (b) FSK (c) PSK (d) DSB with baseband pulse shaping Figure 14.1-1

ASK power spectrum Figure 14.1-2 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ASK power spectrum Figure 14.1-2

Binary QAM (a) transmitter (b) signal constellation Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Binary QAM (a) transmitter (b) signal constellation Figure 14.1-3

PSK signal constellations (a) M=4 (b) M=8 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PSK signal constellations (a) M=4 (b) M=8 Figure 14.1-5

Offset-keyed QPSK transmitter Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Offset-keyed QPSK transmitter Figure 14.1-6

Digital frequency modulation (a) FSK (b) continuous-phase FSK Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Digital frequency modulation (a) FSK (b) continuous-phase FSK Figure 14.1-7

Power spectrum of binc+µFSK with Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Power spectrum of binc+µFSK with Figure 14.1-8

MSK power spectrum Figure 14.1-9 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. MSK power spectrum Figure 14.1-9

Illustration of MSK. (a) phase path (b) i and q waveforms Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Illustration of MSK. (a) phase path (b) i and q waveforms Figure 14.1-11

Bandpass binary receiver Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Bandpass binary receiver Figure 14.2-1

Conditional PDFs Figure 14.2-2 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Conditional PDFs Figure 14.2-2

Copyright © The McGraw-Hill Companies, Inc Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Optimum binary detection (a) parallel matched filters (b) correlation detector Figure 14.2-3

Correlation receiver for OOK or BPSK Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Correlation receiver for OOK or BPSK Figure 14.2-4

Noncoherent OOK receiver Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Noncoherent OOK receiver Figure 14.3-2

Conditional PDFs for noncoherent OOK Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Conditional PDFs for noncoherent OOK Figure 14.3-3

Copyright © The McGraw-Hill Companies, Inc Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Binary error probability curves (a) coherent BPSK (b) DPSK (c) coherent OOK or FSK (d) noncoherent FSK (e) noncoherent OOK Figure 14.3-4

Noncoherent detection of bianry FSK Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Noncoherent detection of bianry FSK Figure 14.3-5

Quadrature-carrier receiver with correlation detectors Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Quadrature-carrier receiver with correlation detectors Figure 14.4-1

PLL system for carrier synchronization for quad-carrier receiver Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PLL system for carrier synchronization for quad-carrier receiver Figure 14.4-2

Coherent M-ary PSK receiver Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Coherent M-ary PSK receiver Figure 14.4-3

Decision thresholds for M-ary PSK Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Decision thresholds for M-ary PSK Figure 14.4-4

Copyright © The McGraw-Hill Companies, Inc Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. M-ary PSK receiver with decision-feedback system for carrier synchronization Figure 14.4-6

Copyright © The McGraw-Hill Companies, Inc Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. M-ary QAM system (a) transmitter (b) receiver (c) square signal constellation and thresholds with M=16 Figure 14.4-8

Performance comparisons of M-ary modulation sysems with Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Performance comparisons of M-ary modulation sysems with Figure 14.4-9

PSK signal constellations (a) M=4 (b) M=8 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PSK signal constellations (a) M=4 (b) M=8 Figure 14.5-1

Generic m/(m+1) modulator for TCM Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Generic m/(m+1) modulator for TCM Figure 14.5-2

8-ary PSK encoder for TCM (a) 4-state, (b) 8 state, Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 8-ary PSK encoder for TCM (a) 4-state, (b) 8 state, Figure 14.5-3

Partitioning of an 8-PSK signal set, Ungerbroeck, 1982 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Partitioning of an 8-PSK signal set, Ungerbroeck, 1982 Figure 14.5-4

Trellis diagram for the encoder of Fig. 14.5-3a, Ungerbroeck, 1982 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Trellis diagram for the encoder of Fig. 14.5-3a, Ungerbroeck, 1982 Figure 14.5-4

Two possible error events for encoder of Fig. 14.5-3a. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Two possible error events for encoder of Fig. 14.5-3a. Figure 14.5-6 transmitted sequence most likely error event error event

Trellis diagram for encoder of Fig. 14.5-3b, Ungerbroeck, 1982 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Trellis diagram for encoder of Fig. 14.5-3b, Ungerbroeck, 1982 Figure 14.5-7

Error event for encoder of Fig. 14.5-3b Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Error event for encoder of Fig. 14.5-3b Figure 14.5-8 transmitted sequence error event