,
One-dimensional grid, number of elements in
Two-dimensional grid
Two-dimensional integer vector
Two-dimensional angular position variable
Two-dimensional angular spatial frequency
Extension of the synthesized field
Resolution scale of the synthesized field
Extension of the Fourier domain
Basic Fourier sampling interval
,
Object grid, Fourier grid
Global frequency list
,
Experimental frequency list, regularization frequency list
Fourier domain
Frequency coverage to be synthesized
Support of the neat beam
Energy confinement parameter
Apodized point-spread function (neat beam)
Instrumental point-spread function (dirty beam)
,
Object space, basis functions of
,
Object representation space, image of
by
,
Experimental data space, data space
Weighting function
,
Redundancy of
, standard deviation of
Regularized Fourier sampling operator
,
Fourier sampling operator on
, on
,
Projection operator onto
, restriction of
to
,
Original object function, image to be reconstructed
,
Reconstructed image, reconstruction error on
,
Experimental data, damped experimental data
Regularized data vector
,
Projection of
onto
, effective error on
Eigenvalue of
and related eigenmode
Separation angle between
and
Smallest and largest eigenvalues of
Condition number of
Regularized criterion
,
Experimental criterion, regularization criterion