Help needed :MATLAB simulink interfacing cards

Discussion in 'Programmer's Corner' started by wicky2000, Jul 25, 2008.

  1. wicky2000

    Thread Starter New Member

    Jul 25, 2008
    5
    0
    :) Hi everyone,

    i'm doing Digital Signal Processing Project. i need A\D and D\A PCI cards which is compatible with MATLAB Simulink..
    Can anyone please tell me where i can find those PCI cards?
     
  2. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
  3. wicky2000

    Thread Starter New Member

    Jul 25, 2008
    5
    0
    thanks steve...i need A/D and D/A conversion function only..hope it's wont much expensive..

    Wicky
     
  4. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
  5. wicky2000

    Thread Starter New Member

    Jul 25, 2008
    5
    0
    Thanks steve..Their prices are comparably low..I’m going to simulate WiMax.

    So that one input channel for A\D sufficient to make the baseband signal. Also one channel enough for D/A as Well..

    Higher the sampling rate is better. So I can send more data. But the prices of the cards getting up and up when sampling rate goes high..Isn’t? I think 50-100Kb/s will sufficient for my task..

    MATLAB simulink compatibility is essential requirement. Because, I’m going to use Simulink for the Signal Processing Part.
    Any Suggestions are highly appropriate.

    Wicky
     
    Last edited: Jul 28, 2008
  6. roddefig

    Active Member

    Apr 29, 2008
    149
    0
    What are your bandwidth requirements?
     
  7. wicky2000

    Thread Starter New Member

    Jul 25, 2008
    5
    0
    When I think to do this project, I put my attention only to the project cost. That’s why I mistakenly put that sampling rate in my previous post. Sorry about that...

    Since WiMax use OFDM, I need at least 400Kb/s sampling rate. Otherwise my bandwidth will narrow and can’t process broadband signal. 12bit resolution is enough.

    suggestions are well come!

    Thanks
    wicky
     
  8. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
    I think you may mean 400KHz sampling rate, which is different than 400Kb/s.

    There are tons of manufacturers that make cards like this, you need to check the link I gave you, since you want it to work with MATLAB.

    It is possible to design a circuit that will do this, but it may take you a while depending on your hardware design experience.

    If I were to do this, with little background and money, I would use a PSoC microcontroller with USB. I would make the USB device be a HID to the PC. I would find a good DAC and ADC with enough resolution and speed with an SPI interface. I would use the SPI interface(s) on the PSoC to program the ADCs. Picking a good voltage reference, opamps, and converters are crucial for performance. This, of course, with good analog layout techniques.

    Steve
     
Loading...