问题
I have a sampled signal represented as matrix which needs to be filtered to allow only 8-35 Hz. The result also should be a matrix !!
回答1:
Use the 'fdatool' to create your filter. Select the Response type Bandpass and the design methode IIR - Elliptic. Now you can fill in your freqency/magnitude specifications and Magnitude check the Magnitude/Phase response. When you are satisfied hit File > Generate Matlab Code and select Data Filtering Function.
来源：https://stackoverflow.com/questions/23421881/how-to-implement-elliptic-filters-in-matlab-that-passes-8hz-to-35hz