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Flussdiagramm

1. Signals Introduction Part 1

Savan L Electronic and Electrical Engineering First year Englisch

1. Signals Introduction Part 1

Inhalt des Flussdiagramms

  1. Signals Basics

  2. Signal

  3. Information

  4. Created when a value changes with time

  5. Created when a signal changes in an unpredictable way

  6. Side Notes

  7. An electrical/electronic circuit is some sort of signal processor

  8. Any value that changes as a function of time

  9. 1. Signals Introduction Part 1

  10. A switch can create a signal

  11. The Unit Step can represent this simple signal

  12. 1. Signals Introduction Part 1
  13. 1. Signals Introduction Part 1

  14. There's an infinite number of signals

  15. Some aspects of signals - can be used to classify them

  16. Amplitude

  17. Mean value (might be zero)

  18. Root mean square value (will not be zero)

  19. Number of zero crossings per unit time

  20. Related to frequency

  21. Important

  22. 1. Signals Introduction Part 1

  23. Electronic devices take an input signal and change it in some way

  24. Examples:

    Amplification

    Rectification

    Filtering

  25. Fundamental Signal Classifications

  26. Continuous Signal

  27. Has a value at every point in time

  28. Discrete Time Signal

  29. Has a value at distinct points in time

  30. 1. Signals Introduction Part 1
  31. 1. Signals Introduction Part 1

  32. T is the time between the signal values (not the time period) in this case

  33. Signals can be created by summing other signals

  34. Simple signals, such as sine waves, are added to create more complicated wave-forms - information signals (maybe)

  35. 1. Signals Introduction Part 1
  36. 1. Signals Introduction Part 1

  37. Adding continuous signals

  38. Adding discrete time signals

  39. Periodic

  40. Random

  41. Non-periodic, Not Random

  42. Values are repeated at regular intervals (periods)

  43. Random value (can't be determined) at any point in time

  44. Values are not repeated periodically and are not random

  45. T = Period

  46. 1. Signals Introduction Part 1
  47. 1. Signals Introduction Part 1

  48. Continuous Signals

  49. Random Signal

  50. 1. Signals Introduction Part 1

  51. Discrete Random Signals

  52. 1. Signals Introduction Part 1

  53. Non-Periodic, Not Random Signal

  54. Odd

  55. Even

  56. x(t) = x(-t)

  57. x(t) = -x(-t)

  58. Symmetric

  59. Anti-symmetric

  60. (Cosine Wave)

  61. (Sine Wave)

  62. 1. Signals Introduction Part 1

  63. Signal Symmetry

  64. Product Rule

  65. ODD . ODD = EVEN

    EVEN . EVEN = EVEN

    EVEN . ODD = ODD

    ODD . EVEN = ODD

  66. 1. Signals Introduction Part 1
  67. 1. Signals Introduction Part 1

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Beschreibung
Basics of signals and classifications of signals
Erstellt von
Savan L
Aufrufe
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