Hi all, i forgot to specify that my 6th order bessel low pass filter is a digital one. I read from the help files that the function besself does not support the design of digital filters,just analog. My specifications are as follow : Cutott frequency > 8.2MHz and my sampling rate is 52.32 MHz (for DVD > purposes). > My Code is the following > > clear all; > a=[10395]; > wo=1/(8.2e6*2*pi) > > b=[1*(wo^6) 21*(wo^5) 210*(wo^4) 1260*(wo^3) > 4725*(wo^2) 10395*(wo) 10395]; > > c=tf(a,b) > h(c,1/52.32e6,'tustin') > bode(h) > I am sure i am making a mistake somewhere,but where? Thx ===== Sylvianne |
6th order bessel filter
Started by ●March 11, 2003