[Kst] [Bug 87446] Butterworth filters are miss-named.

netterfield at astro.utoronto.ca netterfield at astro.utoronto.ca
Wed Aug 25 04:59:58 CEST 2004

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------- Additional Comments From netterfield astro utoronto ca  2004-08-25 04:59 -------
It appears to be at best ambiguous.  Common usage historically has referred to Butterworth filters as including the phase shift, but some sources do not mention this.

Consequently, I suggest that we use the unambiguous terminology "0 phase butterworth" in the description, so user's won't be expecting the phase shifts.

I suggest:
Plugin Name: Filter Low Pass
Description: Zero phase Butterworth
Input Vector - Y: C1-GYRO1   (ie, not "X-Array")
Input Scalar - Order: [           ] 
Input Scalar - Cutoff Freq/Samp Rate [       ] (ie, not "Cutoff Frequency")
Output Vector - Filtered [         ]  (ie, not "X Filtered")

and similar for the other filters....

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