I have heard that digital filtering brings about the sampling of data points at
negative times which can be corrected for by a 1st order phase correction.
Xwinnmr does this automatically but how can I do it myself (outside of
Xwinnmr). How can I calculate the value for the 1st order phase correction?
Is it necessary to perform additional corrections ?
I have also a related question: Why is the first point in the FID divided by 2
by default before the FFT (parameter FCOR as stated in the xwinnmr manual). Is
this also done in the F1 dimension in 2D spectra ?
Thank you very much for your help
Regards
Alexej Jerschow
-- ================================================== Alexej.Jerschow@mr.unit.no MR-Centre, SINTEF UNIMED, N-7034 Trondheim, Norway Tel: +47-73 99 89 44, Fax: +47-73 99 77 08 ==================================================