30
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc. Figure 11.31 Analysis of QPSK.
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Figure 11.31 Analysis of QPSK.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.32 Equivalent signal sets.
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Figure 11.33 Simplex signals.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.34 Optimum M-ary receiver for nonwhite channel noise.
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Figure 11.35 Explanation of minimax concept.
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Figure 11.36 Noncoherent detection of digital modulated signals for ASK.
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Figure 11.37 Conditional PDFs in the noncoherent detection of ASK signals.
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Figure 11.38 Error probability of noncoherent ASK detection.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.39 Noncoherent detection of binary FSK.
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Figure 11.40 Error probability of noncoherent MFSK.
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Figure 11.41 Differential PSK detection.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.42 Error probability of PSK, DPSK, and coherent and noncoherent FSK.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.43 Snapshot of the modulated signals from three difference pulse shapes:(a) root-raised cosine pulses, of roll off factor=0.5; (b) rectangular pulse; (c) half-sine pulse pulse.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.44 BER of optimum (matched filter) detection of polar signaling using three difference pulse shapes:(a) root-raised cosine pulse of roll-off factor 0.5; (b) rectangular pulse; (c) half-sine pulse.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.45 Power spectral density of the binary polar transmission using three difference pulse shapes: (a) root-raisedcosine pulse of roll-off factor 0.5; (b) rectangular NRZ pulse; (c) half-sine pulse pulse.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.46 Waveforms of the two pulses used in orthogonal binary signaling: solid curver,half-sine pulse; curve with circles, sine pulse.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.47 Measured BER results in comparison with analytical BER.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.48 Eye diagram of the real (in-phase) component of the16-QAM transmission at the receiver matched filter output.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.49 Symbol error probability of 16-QAM using root-raised cosinepulse in comparison with the analytical result.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.50 Scatter plot of the matched filter output for the 16-QAMsignaling with root-raised cosine pulse when Eb/N = 18 dB.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.51 BER from noncoherent detection of binary FSK.
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure 11.52 Analytical BER results from noncoherent detectionof binary DPSK simulation (round points).
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Figure P.11.1-3
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Figure P.11.1-4
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Figure P.11.2-7
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Figure P.11.6-5
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Figure P.11.6-6
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Figure P.11.6-12
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Figure P.11.6-13
Modern Digital and Analog Communication Systems Lathi Copyright © 2009 by Oxford University Press, Inc.
Figure P.11.6-14
