Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi all.
I checked and 42 already saw the topic, however only one answer. This could be interesting, just put your comments, pretty sure some of you have designed some filters... probably using Matlab like me...
If what you are asking is about functionality, i.e. integration, derivation, etc. (like an RLC filter) there is some equivalencies, and it depends on the transformation you use. You can transform any transfer function in the S domain (analog) to the Z domain (digital) using the bilinear...
Which software do you use to design and implement digital filters - any kind of filters (Audio, Images, Video, etc)?
I want to do a short survey, so please answer the following:
1- Student/Worker
2- Software tool(s)
3- Hardware target (i.e. MCU DSP, FPGA, etc.)
4- Type of digital filters...
Yeap. (it is a00*w1[n-1]+a10*w[n-2]) - just check your equs. again for the [n-...] values
Wordlength is OK, again sim. in Matlab with this values to check if filter works OK, if not increase wordlength values
drz
Hi.
By biquad, transfer function is H(z) = H1(z)*H2(z)*H3(z)*X(z), which means that you implement each section as a second/first order filter, and then the output of the preceding section goes into the input of the other one.
For the scaling, maybe use Matlab and use a fixed wordlenght, other...
Hi Allison.
Lots of thing to explain, will try without too much theory. (There are other ways to implement an oscillator, but check if that works for you - I will NOT comment on your filter requirements, I will assume that it is what you need)
About the filter implementation in the FPGA...
There is nothing wrong. Matlab tf2ss algorithm use a canonical realization to compute num.den (see State space (controls) - Wikipedia, the free encyclopedia)
For a given transfer function den.num, there exist infinity possible state space representations. So, ABCD and a1b1c1d1 have the same...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
