How do I go about doing the partial fraction expansion backwards using MATLAB? I have a list of poles and K values and I need to get the original equation ( X(z) = A(z)/B(z) )

11/30/2005 7:52:22 PM

i believe the convolute command might do the trick

something like this (with made up transfer functions)

num1=[1 0]; num2=[1 0]; den1=[1 0 0] den2=[1 0 0];
numtotal=conv(num1,num2); dentotal=conv(den1,den2);
sys=tf(numtotal,dentotal)

also you can put it in series

num=conv(n1,conv(n2,n3));

hope this helps

12/1/2005 6:38:01 PM