Chapter 07 Passband Digital Transmission Figure 7.1 A model of passband digital communication system. Copyright 2016 Elsevier Inc. All rights reserved.
2 Figure 7.2 The Gram-Schmidt orthogonalization procedure: (a) generation of signal from coefficients and (b) extraction of coefficients from signal. Copyright 2016 Elsevier Inc. All rights reserved.
3 Figure 7.3 Set of signals and orthonormal functions for Example 7.1. Copyright 2016 Elsevier Inc. All rights reserved. 4
Figure 7.4 A geometric representation of transmitted vector, noise vector, and received vector. Copyright 2016 Elsevier Inc. All rights reserved. 5
Figure 7.5a Optimum receivers: (a) correlation receiver and (b) matched-filter receiver. Copyright 2016 Elsevier Inc. All rights reserved. 6 Figure 7.5b Optimum receivers: (a) correlation receiver and (b) matched-filter receiver.
Copyright 2016 Elsevier Inc. All rights reserved. 7 Figure 7.6a Example 7.3: (a) signal set, (b) orthonormal functions, (c) matched filters, and (d) optimum decision regions.
Copyright 2016 Elsevier Inc. All rights reserved. 8 Figure 7.6b Example 7.3: (a) signal set, (b) orthonormal functions, (c) matched filters, and (d) optimum decision regions. Copyright 2016 Elsevier Inc. All rights reserved.
9 Figure 7.6c Example 7.3: (a) signal set, (b) orthonormal functions, (c) matched filters, and (d) optimum decision regions. Copyright 2016 Elsevier Inc. All rights reserved.
10 Figure 7.6d Example 7.3: (a) signal set, (b) orthonormal functions, (c) matched filters, and (d) optimum decision regions. Copyright 2016 Elsevier Inc. All rights reserved. 11
Figure 7.7 Optimum receiver for nonwhite noise. Copyright 2016 Elsevier Inc. All rights reserved. 12
Figure 7.8 Noncoherent detection. Copyright 2016 Elsevier Inc. All rights reserved. 13 Figure 7.9 Binary digital modulation schemes: (a) binary data, (b) modulating signal, (c) carrier wave, (d) BASK signal, (e)
BFSK signal, and (f) BPSK signal. Copyright 2016 Elsevier Inc. All rights reserved. 14 Figure 7.10ab BASK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection,
and (d) noncoherent detection. Copyright 2016 Elsevier Inc. All rights reserved. 15 Figure 7.10cd BASK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection,
and (d) noncoherent detection. Copyright 2016 Elsevier Inc. All rights reserved. 16 Figure 7.11 Power spectral density functions for BASK, BFSK, and BPSK modulation schemes.
Copyright 2016 Elsevier Inc. All rights reserved. 17 Figure 7.12ab BFSK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection, and (d) noncoherent detection.
Copyright 2016 Elsevier Inc. All rights reserved. 18 Figure 7.12cd BFSK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection, and (d) noncoherent detection.
Copyright 2016 Elsevier Inc. All rights reserved. 19 Figure 7.13ab BPSK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection, and (d) differential detection.
Copyright 2016 Elsevier Inc. All rights reserved. 20 Figure 7.13cd BPSK modulation: (a) transmitter, (b) signal space and optimum decision regions, (c) coherent detection, and (d) differential detection.
Copyright 2016 Elsevier Inc. All rights reserved. 21 Figure 7.14 Bit error rate performances of binary digital modulation schemes.
Copyright 2016 Elsevier Inc. All rights reserved. 22 Figure 7.15a QPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, (c) transmitted signal, (d) transmitter, (e) receiver, and (f) signal space and optimum decision regions.
Copyright 2016 Elsevier Inc. All rights reserved. 23 Figure 7.15bc QPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, (c) transmitted signal, (d) transmitter, (e) receiver, and (f) signal space and optimum decision regions.
Copyright 2016 Elsevier Inc. All rights reserved. 24 Figure 7.15de QPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, (c) transmitted signal, (d) transmitter, (e) receiver, and (f) signal space and optimum decision regions.
Copyright 2016 Elsevier Inc. All rights reserved. 25 Figure 7.15f QPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, (c) transmitted signal, (d) transmitter, (e) receiver, and (f) signal space and optimum decision regions.
Copyright 2016 Elsevier Inc. All rights reserved. 26 Figure 7.16 Power spectral density functions for QPSK, OQPSK, and MSK. Copyright 2016 Elsevier Inc. All rights reserved.
27 Figure 7.17a OQPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, and (c) transmitted signal. Copyright 2016 Elsevier Inc. All rights reserved.
28 Figure 7.17bc OQPSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, and (c) transmitted signal. Copyright 2016 Elsevier Inc. All rights reserved.
29 Figure 7.18a MSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, and (c) transmitted signal. Copyright 2016 Elsevier Inc. All rights reserved.
30 Figure 7.18bc MSK modulation: (a) input binary signal in polar form, (b) signal decomposition into two independent signals, and (c) transmitted signal. Copyright 2016 Elsevier Inc. All rights reserved.
31 Figure 7.19 Carrier phases for QPSK and MSK schemes. Copyright 2016 Elsevier Inc. All rights reserved.
32 Figure 7.20a Signal space and optimum decision regions for M-ary modulation schemes: (a) MASK (M=4), (b) MPSK (M=8), (c) QAM (M=16), and (d) MFSK (M=3). Copyright 2016 Elsevier Inc. All rights reserved.
33 Figure 7.20b Signal space and optimum decision regions for M-ary modulation schemes: (a) MASK (M=4), (b) MPSK (M=8), (c) QAM (M=16), and (d) MFSK (M=3). Copyright 2016 Elsevier Inc. All rights reserved.
34 Figure 7.20c Signal space and optimum decision regions for M-ary modulation schemes: (a) MASK (M=4), (b) MPSK (M=8), (c) QAM (M=16), and (d) MFSK (M=3). Copyright 2016 Elsevier Inc. All rights reserved.
35 Figure 7.20d Signal space and optimum decision regions for M-ary modulation schemes: (a) MASK (M=4), (b) MPSK (M=8), (c) QAM (M=16), and (d) MFSK (M=3). Copyright 2016 Elsevier Inc. All rights reserved.
36 Figure 7.21 MASK bit error rate performance. Copyright 2016 Elsevier Inc. All rights reserved. 37
Figure 7.22 MPSK bit error rate performance. Copyright 2016 Elsevier Inc. All rights reserved. 38
Figure 7.23 QAM bit error rate performance. Copyright 2016 Elsevier Inc. All rights reserved. 39 Figure 7.24 MFSK bit error rate performance.
Copyright 2016 Elsevier Inc. All rights reserved. 40 Figure 7.25 Block diagram of an orthogonal frequency-division multiplexing: (a) transmitter and (b) receiver.
Copyright 2016 Elsevier Inc. All rights reserved. 41
