I have written a digital filter (quite simple and generic) as
The filter discretized using Tusting. The code is verified and seems to be
fine. Now, if have the filter
Hence a=0; b=K; c=0; d=1; e=a+b ; f=a*b
and filter one time series, and have the filters
Hence one filter with a+0; b= k; c=0; d=0; e=1; f=a
and another filter with a+0; b= 0; c=1; d=0; e=1; f=b
and I filter the same signal through this two filters... the answer varies.
Can somebody give me a hint on why this would be happening??
It's later than you think.