1 UV_DFT Image a UV table through Direct Fourier Transform (no FFT)

        UV_DFT  makes  a  map  from  UV data using (slow) Fourier Transform.
    This method  introduces  no aliasing, and no grid correction, but it  is
    slow.

    This task processes all table channels at a time.
2 UV_TABLE$
        TASK\FILE "UV table" UV_TABLE$

    The  sorted, precessed UV table name.  Default extension is .UVT.  A raw
    UV table can be sorted and precessed using UVSORT task.
2 MAP_NAME$
        TASK\CHARACTER "Map name" MAP_NAME$

    The output map name.  Default extension is .LMV
2 UV_TAPER$
        TASK\REAL "UV taper(1/e level, meters)" UV_TAPER$

    The UV taper (to be applied in both directions).
2 WEIGHTMODE$
        TASK\CHARACTER "Weight mode (NA or UN)" WEIGHTMODE$

    NAtural (optimum in terms of  sensitivity)  or  UNiform  (usually  lower
    sidelobes) weighting.
2 MAP_SIZE$
        TASK\INTEGER "Map size(2)" MAP_SIZE$[2]

    Number  of  pixels  in  X  and Y.  Need not be a power of two, but  this
    would be much better for any further image processing.
2 MAP_CELL$
        TASK\REAL "Map cell(arc sec)" MAP_CELL$

    The map cell size (identical in X and Y).
2 UV_CELL$
        TASK\REAL "UV cell(m), for unif.  weighting" UV_CELL$

    The UV cell size for uniform weighting.  Should be of the order  of half
    the dish diameter, or smaller.
1 ENDOFHELP


























