Hp acquire.m

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Standard pulse-acquire sequence with a hard pulse. The user must sup- ply the pulse operator, the pulse duration and the initial condition. Syntax:

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

where fid is the free induction decay, H is the Hamiltonian matrix, R is the relaxation matrix and K is the chemical kinetics matrix. The following parameters are required:

   parameters.sweep              sweep width, Hz
   parameters.npoints            number of points in the FID
   parameters.rho0               initial state
   parameters.coil               detection state
   parameters.pulse_op           pulse operator
   parameters.pulse_angle        pulse angle, radians
   parameters.decouple           spins to decouple, e.g. {'15N','13C'}
                                 (sphten-liouv formalism only)