Measurement Studio for .NET Languages

cancel
Showing results for 
Search instead for 
Did you mean: 

ZeroPhaseFiltering in VB.Net

How do I use the "ZeroPhaseFiltering" function in Measurment Studio fo a Butterworth low-pass filter. I don't know how to get the "reverseCoefficients" and "forwardCoefficients"?

0 Kudos
Message 1 of 2
(4,420 Views)

I'm not sure if there is anything built in to Measurement Studio.  However, I think if you filter the signal, reverse the data array, filter it again, reverse the array again, you have a zero phase filter.  Whatever phase shift took place when passing the data through the filter should be reversed if the samples are reversed.  I haven't tried this but let us know your results if you do.

0 Kudos
Message 2 of 2
(4,411 Views)