NLS_PACKAGE.

Here is a collection of programs and pulse sequences that allow to record non-linearly (non-uniformly) sampled spectra.

The pulse sequences were tested on a Bruker Avance500 spectrometer.

The pulse sequences are those of the publication:

Accelerated acquisition of high resolution triple-resonance spectra using non-uniform sampling and maximum entropy reconstruction, 

D. Rovnyak, D.P. Frueh, M. Sastry, Z-Y. J. Sun, A. S. Stern, J. C. Hoch, G. Wagner, JMR 2004

coast11 is the program to assist in making non-uniform sampling schemes for standard cases.

see the COAST instructions for more details

sched2vc and vc2sched enable the interconversion of sampling schedules (2d.sched from RNMRTK) and vc lists for Bruker instruments

more information is provided in the headers of the pulse sequences.

For Bruker Avance-AQR and older type consoles, one must use different NUS pulseprogram and 4-number vclist containing explicit phase values

please contact us for help.