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Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Seven Analog Communication Systems.

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Presentation on theme: "Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Seven Analog Communication Systems."— Presentation transcript:

1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Seven Analog Communication Systems

2 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Superhetrodyne receiver Figure 7.1-1

3 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Superhet receiver waveforms Figure 7.1-2

4 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Direct conversion receiver Figure 7.1-3

5 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Direct conversion receiver with opposite sideband rejection Figure 7.1-4

6 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Double conversion receiver Figure 7.1-5

7 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Scanning spectrum analyzer (a) block diagram (b) amplitude response Figure 7.1-6

8 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDM transmitter (a) input spectra & block diagram (b) baseband FDM spectrum Figure 7.2-1

9 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDM receiver Figure 7.2-2

10 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FDMA satellite system Figure 7.2-3

11 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FM stereo multiplexing (a) transmitter (b) baseband spectrum Figure 7.2-4

12 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FM stereo multiplex receiver Figure 7.2-5

13 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Quadrature-carrier multiplexing Figure 7.2-6

14 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM system (a) block diagram (b) waveforms Figure 7.2-7

15 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM synchronization markers Figure 7.2-9

16 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. (a) TDM transmitter with baseband filtering (b) baseband waveform Figure

17 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cross talk in TDM Figure

18 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. TDM/PPM with guard time Figure

19 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Phase comparitors (a) analog (b) digital Figure 7.3-1

20 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Phase-lock loop Figure 7.3-2

21 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PLL pilot filter with two phase discriminators Figure 7.3-3

22 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Costas PLL system for synchronous detection Figure 7.3-4

23 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Frequency synthesizer with fixed and adjustable outputs Figure 7.3-7

24 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Linearized PLL models (a) time domain (b) phase (c) frequency domain Figure 7.3-8

25 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Monochrome TV transmitter Figure 7.4-6

26 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Monochrome TV receiver Figure 7.4-7

27 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Color subcarrier modulation system Figure

28 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Color demodulation system Figure

29 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Scene capabilities of conventional NTSC system and HDTV Figure

30 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Viewing angles as a function of distance (a) conventional NTSC (b) HDTV Figure

31 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. HDTV transmitter Figure

32 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. HDTV receiver Figure


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