Sara92
Newbie level 5
Hi!
I need to realize a time variant filter in simulink/matlab and discovered the function block "Transfer Fcn Direct Form II Time Varying" which should do the job.
Unfortunately I'm completely lost with z-parameters. Can anybody help me here? I need the coefficients for a band pass at frequency "f0" and +-3db cut off at +-"df".
The function needs to have a form like:
n0 + n1*z^-1 + n2*z^-2+...
__________________________
1 + d1*z^-1 + d2*z^-2+....
That means d0 is allways equal 1. :!:
Thanks for your help!
I need to realize a time variant filter in simulink/matlab and discovered the function block "Transfer Fcn Direct Form II Time Varying" which should do the job.
Unfortunately I'm completely lost with z-parameters. Can anybody help me here? I need the coefficients for a band pass at frequency "f0" and +-3db cut off at +-"df".
The function needs to have a form like:
n0 + n1*z^-1 + n2*z^-2+...
__________________________
1 + d1*z^-1 + d2*z^-2+....
That means d0 is allways equal 1. :!:
Thanks for your help!