Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved. 0-13-142492-0 Figure 7–1 General binary.

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Presentation transcript:

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–1 General binary communication system.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–2 Error probability for binary signaling.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–3 Matched-filter receiver for colored noise.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–4 Receiver for baseband binary signaling.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–5 P e for matched-filter reception of several binary signaling schemes.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–6 Receiver for bipolar signaling.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–7 Coherent detection of OOK or BPSK signals.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–8 Coherent detection of an FSK signal.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–9 Noncoherent detection of OOK.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–10 Conditional PDFs for noncoherent OOK reception.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–11 Noncoherent detection of FSK.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–12 Demodulation of DPSK.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–13 Matched-filter detection of QPSK.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–14 Comparison of the probability of bit error for several digital signaling schemes.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–15 PCM communications system.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–16 Uniform quantizer characteristic for M = 8 (with n = 3 bits in each PCM word).

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–17 (S/N) out of a PCM system as a function of P e and the number of quantizer steps M.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–18 Baseband system.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–19 Coherent receiver.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–20 Vector diagram for AM, (S/N) in ! 1.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–21 Receiver for angle-modulated signals.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–22 Vector diagram for angle modulation, (SN) in ! 1.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–23 PSD for noise out of detectors for receivers of angle-modulated signals.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–24 Noise performance of an FM discriminator for a sinusoidal modulated FM signal plus Gaussian noise (no deemphasis).

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–25 FMFB receiver.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–26 Noise performance of standard FM systems for sinusoidal modualtion.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–27 Comparison of the noise performance of analog systems.

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–28 Solution for SA7–1 showing the effect of brickwall low-pass filtering. (a) Unfiltered Pulse with Amplitude A = 1 and Pulse Width T = 1

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–28 (Continued) (b) Filtered Pulse with Equivalent Bandwidth B = 1/T = 1 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–28 (Continued) (c) Filtered Pulse with Equivalent Bandwidth B = 2/T = 2 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–28 (Continued) (d) Filtered Pulse with Equivalent Bandwidth B = 3/T = 3 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–29 Solution for SA7–2 showing the effect of RC low-pass filtering. (a) Unfiltered Pulse with Amplitude A = 1 and Pulse Width T = 1

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–29 (Continued) (b) Filtered Pulse with Equivalent Bandwidth B = 1/T = 1 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–29 (Continued) (c) Filtered Pulse with Equivalent Bandwidth B = 2/T = 2 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure 7–29 (Continued) (d) Filtered Pulse with Equivalent Bandwidth B = 3/T = 3 Hz

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure P7–4

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure P7–36

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure P7–38

Couch, Digital and Analog Communication Systems, Seventh Edition ©2007 Pearson Education, Inc. All rights reserved Figure P7–49