8 de febrero del 2001 - PowerPoint PPT Presentation

slide1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
8 de febrero del 2001 PowerPoint Presentation
Download Presentation
8 de febrero del 2001

play fullscreen
1 / 81
8 de febrero del 2001
97 Views
Download Presentation
tala
Download Presentation

8 de febrero del 2001

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. 8 de febrero del 2001

  2. Chapter 5 Encoding

  3. Figure 5-1 Different Conversion Schemes

  4. Figure 5-2 Digital to Digital Encoding

  5. Figure 5-3 Types of Digital to Digital Encoding

  6. Figure 5-4 Unipolar Encoding

  7. Figure 5-5 Types of Polar Encoding

  8. NRZL Especificación del Protocolo:

  9. Figure 5-6 NRZ-L and NRZ-I Encoding

  10. Figure 5-7 RZ Encoding

  11. Bifase (Auto-Sincronizados) • Siempre hay una transición a mitad del intervalo de duración del bit. • Técnicas • Manchester: La transición de mitad del intervalo sirve para sincronización y transmisión de datos. • Manchester Diferencial: La transición de mitad del intervalo solo sirve para sincronización

  12. Manchester Especificación del Protocolo:

  13. Figure 5-8 Manchester and Diff. Manchester Encoding

  14. 1. ¿Cuál es la capacidad de un canal de 5kHz que utiliza codificación Manchester? • 2. ¿Y si utilizara codificación MLT-3?

  15. Figure 5-9 Types of Bipolar Encoding

  16. Binario Multinivel • Técnicas • biploar-AMI (“Alternate Mark Inversion”) • pseudoternario • MLT-3 (Multi-Level Transmit - 3 Levels) • 2B1Q

  17. Especificación del Protocolo: • Bipolar-AMI

  18. Figure 5-10 Bipolar AMI Encoding

  19. Figure 5-11 B8ZS Encoding

  20. Figure 5-12 HDB3 Encoding

  21. Figure 5-13 Solution to Example 5.1

  22. Figure 5-14 Solution to Example 5.2

  23. Figure 5-15 Analog to Digital Encoding The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  24. Figure 5-16 PAM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  25. Figure 5-17 Quantized PAM Signal The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  26. Figure 5-18 Quantizing Using Sign and Magnitude The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  27. Figure 5-19 PCM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  28. Figure 5-20 From Analog to PCM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  29. Figure 5-20-continued From Analog to PCM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  30. Figure 5-20-continued From Analog to PCM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  31. ~ S S S(t) k k ~ S (t) Figure 5-20-continued From Analog to PCM The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  32. Figure 5-21 Nyquist Theorem The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  33. Figure 5-22 Digital to Analog Encoding The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  34. Figure 5-23 The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  35. ASK • Especificación del Protocolo:

  36. Figure 5-24 ASK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  37. Figure 5-25 Bandwidth for ASK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  38. FSK • Especificación del Protocolo:

  39. Figure 5-27 FSK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  40. Figure 5-28 Bandwidth for FSK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  41. PSK • Especificación del Protocolo:

  42. Figure 5-29 PSK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  43. Figure 5-30 PSK Constellation The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  44. Figure 5-31 4-PSK The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  45. Figure 5-32 4-PSK Characteristics The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  46. Figure 5-33 8-PSK Characteristics The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  47. Figure 5-34 PSK Bandwidth The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill

  48. QAM (4) • Especificación del Protocolo

  49. 00 01 00 10 10 11 01 01 10 11 QAM(Quadratura Amplitude Modulation) 01 10 00 Re 11

  50. Figure 5-35 4-QAM and 8-QAM Constellations The McGraw-Hill Companies, Inc., 1998 WCB/McGraw-Hill