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Understanding FIR filters

Hello, hello,

I'm a little lost with the FIR filter functions of the Advanced Analysis Library.

So it seems to break down to 3 function:

 

WindFIR_Filter (BANDPASS, SamplingFreq, F1, F2, NbCoefs, RECTANGLE, WindowParam, FirCoefs);
FIRFiltering(input, NbSamples, FirCoefs, StateInfo, NbCoefs, Output);
Wind_BPFiltering (Input, NbSamples, NbCoefs, SamplingFreq, F1, F2, RECTANGLE____, WindowParam, Output);


2 questions:

1 - Is calling Wind_BPFiltering the same as calling WindFIR_Filter+FIRFiltering

 

2 - What is the the undocumented StateInfo parameter ?

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