In the old hitfinder, deconvolution is done seperately in the time and pad
directions. The switches that control the time deconvolution are
TRFF and DECON.
- If TRFF=0, then there is no deconvolution attempted.
- If TRFF=1, then a symmetric Gaussian response is used.
- If TRFF=2, then a Gaussian response is used, with the width (sigma)
varying linearly with time (asymmetric gaussian).
- For TRFF=2, if DECON=1, then the width parameters of the
asymmetric gaussian are fixed.
- For TRFF=2, if DECON=2, then the width parameters of the
asymmetric gaussian can vary. If the fit fails, then they are fixed
and we try again.
Take a look at some of the spectrum fragments shown here, deconvoluted
with the three switch settings listed above.
What I see is that TRFF=2 and DECON=2 either (1) fits a little better
than TRFF=1, or (2) fits a lot worse. Case (2) is fairly rare, but you will
find some examples below. When TRFF=2 fails, it does so spectacularly.
However, this happens when the pulse is wide, and the TRFF=1 peaks are
rejected for being too wide. So, I don't know conclusively which is better.