The above example is for IIR filter; if you are using FIR filter, then all bn =
0.
To get the impulse response length, you can make N something like 4096 or you
can
watch y[n] output until it becomes flat and no longer changes.
-Jeff
Reply by Jeff Brower●February 21, 20052005-02-21
Sridhar-
>
> I tested digital filter by giving the sweep signal. Is there any other
> method to basically check, filter is working or not ??
The above example is for IIR filter; if you are using FIR filter, then all bn =
0.
To get the impulse response length, you can make N something like 4096 or you
can
watch y[n] output until it becomes flat and no longer changes.
-Jeff
Reply by Dr.Rajanish Kamat●February 20, 20052005-02-20
The most important tests for the digital filters is the stability. The
simplest thing would be to use graphical root-locus technique or most
sophisticated FFT based oepstral method. This will certainly validate your
design of digital filter..
Sridhar gadda
<s...@yahoo.com> wrote:
Hello,
I
tested digital filter by giving the sweep signal. Is there any
other method to basically check, filter is working or not ??
http://www.dsprelated.com/groups/matlab/1.php
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