Hi Steve,
There is a command in MATLAB : "filterbuilder" . It has the option for
designing various types of filter. You can design a Decimation FIR filter
using this.
Regards-Vaibhav
You could use firgr
http://www.mathworks.com/access/helpdesk/help/toolbox/filterdesign/ref/firgr.html
A FIR filter for decimation is just like any other FIR filter but you only need
to calculate the output samples you need, that is every nth sample for a
decimation factor of n. You can have multiple stop bands with firgr. You specify
the stop bands to cover the bands of frequencies that will alias into your
wanted band after decimation. You can allow the response to rise at frequencies
that don't alias into your band.
Steve
On Wed Mar 24 1:44 , QQ sent:
Hi, does anyone know how to design a decimation filter in MATLAB. I do not want CIC filter, but would like to have FIR filter. Thank you very much!