The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Design >> Mixed-Signal Design >> 2-1 multibit(3bit) matlab model(help me!!)
https://designers-guide.org/forum/YaBB.pl?num=1176020651

Message started by fangjh on Apr 8^th, 2007, 1:24am

Title: 2-1 multibit(3bit) matlab model(help me!!)
Post by fangjh on Apr 8^th, 2007, 1:24am

I use matlab to simulate 2-1multibit modulation ,but the result is not correct, I found the digital error correction circuit is not clear? can you help me, or who can sent me a 2-1 multibit modulation (include the digital correction circuit) . or give me some advise or reference paper.
Thanks you a lot!!!

(if you have the model , can you sent to me : f-jh3@sohu.com)

Title: Re: 2-1 multibit(3bit) matlab model(help me!!)
Post by fangjh on Apr 9^th, 2007, 6:32pm

the schematic as
and the parameters is g1=g1'=g2'=0.25 g2=0.5 g4=1 g4=0.375 g4''=0.25
d0=-2 d1=2 , when this the secod stage was not useful, and the SNQR is very small, why?
who can tell me the mistake?