The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl Design >> Analog Design >> Noise Power of a 3rd Order digital modulator https://designers-guide.org/forum/YaBB.pl?num=1263098052 Message started by neoflash on Jan 9th, 2010, 8:34pm |
Title: Noise Power of a 3rd Order digital modulator Post by neoflash on Jan 9th, 2010, 8:34pm 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 |
Title: Re: Noise Power of a 3rd Order digital modulator Post by neoflash on Jan 10th, 2010, 11:06am 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? |
The Designer's Guide Community Forum » Powered by YaBB 2.2.2! YaBB © 2000-2008. All Rights Reserved. |