FFT based digital FIR filter with an arbitrary shaped sequence response

[Ian_Ren]

Anyone has any idea what a "FFT based digital FIR filter with an arbitrary shaped frequency response" is? How can I create such a filter in LabVIEW?

Thanks.

Ian

[Ian_Ren]

A little more info, this is the description of a "Filter_FRF" filter function in LMS Test.Lab.

Thanks

Ian

[Call.Me.Wilbur]

I recommend taking a look at this document about FIR filter design in LabVIEW.

You should also consider the following help documentation. There are several different options for implementing FIR filters. These can all be found in the signal processing palette. For your case I think the Digital FIR Filter VI might be a good place to start.

Advanced FIR Filtering VIs

Digital FIR Filter VI