fdpcg.h File Reference

Functions
fdpcg_t *	fdpcg_prepare (const parms_t *parms, const recon_t *recon, const powfs_t *powfs, mapcell *atm)
void	fdpcg_precond (dcell **xout, const void *A, const dcell *xin)
void	fdpcg_free (fdpcg_t *fdpcg)

Detailed Description

Fourier Domain Preconditioner for Tomography step.

Function Documentation

fdpcg_prepare()

fdpcg_t* fdpcg_prepare	(	const parms_t *	parms,
		const recon_t *	recon,
		const powfs_t *	powfs,
		mapcell *	atm
	)

Prepare data for Tomography Fourier Domain Preconditioner. atm is used to provide wind velocity information.

fdpcg_precond()

void fdpcg_precond	(	dcell **	xout,
		const void *	A,
		const dcell *	xin
	)

Apply the Fourier domain preconditioner. Preconditioner solves xout=M^-1*xin where M is the preconditioner matrix. Here M^-1 is applied in Fourier Domain via xout=IFFT(M*FFT(xin));

fdpcg_free()

void fdpcg_free

(

fdpcg_t *

fdpcg

)

Free fdpcg related data structs.