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Design >> Analog Design >> How to find out the coefficient of a,g,b,c in Continuous Time DSM?
https://designers-guide.org/forum/YaBB.pl?num=1282915475

Message started by moore on Aug 27^th, 2010, 6:24am

Title: How to find out the coefficient of a,g,b,c in Continuous Time DSM?
Post by moore on Aug 27^th, 2010, 6:24am

How to find out the coefficient of a,g,b,c in Continuous Time DSM?
I knew there are two ways:
* Use realizeNTF_ct function in DStoolbox. But the output of the function is [ABCD,tdac], how to fit them into [a,g,b,c] in certain structure such as CIFB or CIFF?
Also, the option of realizeNTF_ct is 'FF'/'FB', but in DT one, realizeNTF the option is 'CIFB','CIFF''CRFB''CRFF'. Is there any relationship between them?
* Some recommand to derive DT NTF first, and convert it into CT. But when NTF is known, how to find out the coefficient? Is there any function?

Or can anyone kindly to present the Matlab code or simulink model of CT DSM?

Many thanks!