# Dqf cosy.m

From Spinach Documentation Wiki

Phase-sensitive double-quantum filtered COSY pulse sequence. Syntax:

fid=dqf_cosy(spin_system,parameters,H,R,K)

where H is the Hamiltonian commutation superoperator, R is the relaxa- tion superoperator, K is chemical kinetics superoperator and the output has fid.cos and fid.sin fields to facilitate subsequent hypercomplex processing. The following parameters are required:

parameters.sweep sweep width in Hz

parameters.npoints number of points for both dimensions

parameters.spins nuclei on which the sequence runs, specified as '1H', '13C', etc.