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what is the meaning of "aspects of using digital representation of analogue signals"?

Discussion in 'Electronic Basics' started by nick, Mar 30, 2005.

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  1. nick

    nick Guest

    can anyone give me some examples?
    thanks!
     
  2. Lord Garth

    Lord Garth Guest

    How about a computer display which simulates a speedometer...or an RPM gauge
    or a glass cockpit on a modern jet aircraft or an electronic VU meter or
    .........
     
  3. nick

    nick Guest

    can you list three important aspects of using digital representation of
    analogue signals?
     
  4. Bob

    Bob Guest

    Yes, I can. Can you do your homework on your own?

    Bob
     
  5. Bob Masta

    Bob Masta Guest

    Since this is obviously homework, I'm only going to
    point you in the right direction: Look up
    "quantization". An analog signal is continuous
    in time and value, but a digital representation
    has to fit into a specified number system. What
    happens when an input happens to fall "between
    the cracks" in time or level?

    You might also want to look up "aliasing" and
    "sampling theory" while you are at it.

    Best regards,


    Bob Masta
    dqatechATdaqartaDOTcom

    D A Q A R T A
    Data AcQuisition And Real-Time Analysis
    www.daqarta.com
     
  6. Kitchen Man

    Kitchen Man Guest

    Red, green and blue.
     
  7. Possibly. Can you be more specific? For example, what does "aspects" mean?

    Thanks,
    Rich
     
  8. nick

    nick Guest

    sorry , can you explain what is the meaning of aspect to me?
    because i think there are many aspects of using digital representation of
    analogue signals

    thanks!
     
  9. An aspect is a view of something, or a way to see it,
    a way it can be used.

    I can see a cow as a milk-producing animal, or as a
    valuable property, or as a symbol for something holy
    (in India), or as an example of a four-legged animal.

    One aspect of computers is that they allow us to
    communicate globally via internet.
    Another aspect is that computers are cute to look at
    and make nice sounds.

    digital representation of analogue signals

    is a way to convert analogue signal so we can process
    and store the signals in modern digital devices

    allows us to store analogue signal in computers, like
    we do with music, mp3-players.

    allows us to use digital signal processing on the signal, like the DSP
    processor on your sound card, which allow you to change the echo
    effects (big hall, concert hall, church) on everything you play

    it sacrifices some of the precision in the analogue signal through
    digitalization, but we gain other advantages from the transformation.
     
  10. nick

    nick Guest

    the question is "list three important aspects of using digital
    representation of analogue signals"?

    many aspects of using digital representation of analogue signals,but which
    three are important?
    becasue many aspects are also important.

    so i fell very confuse of that question.


    thanks!
     
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