+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Advanced Member level 1
    Points: 4,813, Level: 16

    Join Date
    Jul 2005
    Posts
    492
    Helped
    10 / 10
    Points
    4,813
    Level
    16

    Noise Power of a 3rd Order digital modulator

    Hi,

    I've done the correlation of the noise power of a 3rd order modulator. Its block diagram is shown below.

    I've two results to be compared:

    1. Using closed-form formula and do integration.
    2. Using verilog-HDL model and post process data in matlab to obtain the noise power.

    The results are respectively 0.47 and 0.5037.

    I would like to learn that if this is a reasonable close correlation, or they should be exactly the same?

    regards,
    Neo

    •   AltAdvertisment

        
       

  2. #2
    Advanced Member level 1
    Points: 4,813, Level: 16

    Join Date
    Jul 2005
    Posts
    492
    Helped
    10 / 10
    Points
    4,813
    Level
    16

    Noise Power of a 3rd Order digital modulator

    I also did some homework about 1st order modulator. The calculated total output noise power is 2/3 (delta=2). The simulated with verilog model is close to 0.77.

    Again, the simulated is more than calculated. Any suggestion?



--[[ ]]--