; SMOOTH
;---------------------------------------------------------------
;! Specifies spectral smoothing
;# ADVERB UV
;-----------------------------------------------------------------------
;;  Copyright (C) 1995
;;  Associated Universities, Inc. Washington DC, USA.
;;
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;-----------------------------------------------------------------------
;---------------------------------------------------------------
SMOOTH    LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
SMOOTH
Type: Adverb  (REAL(3))
Use:  SMOOTH specifies the type of spectral smoothing to
      be applied to a uv database . The default is not
      to apply any smoothing. The elements of SMOOTH are
      as follows:
          SMOOTH(1) = type of smoothing to apply:
            0 => no smoothing
            1 => Hanning
            2 => Gaussian
            3 => Boxcar
            4 => Sinc (i.e. sin(x)/x)
          SMOOTH(2) = the "diameter" of the function, i.e.
            width between first nulls of Hanning triangle
            and sinc function, FWHM of Gaussian, width of
            Boxcar. Defaults (if < 0.1) are 4, 2, 2 and 3
            channels for SMOOTH(1) = 1 - 4.
          SMOOTH(3) = the diameter over which the convolving
            function has value - in channels.
            Defaults: 1, 3, 1, 4 times SMOOTH(2) used when
            input SMOOTH(3) < net SMOOTH(2).

Null Value:  0
      A null value of SMOOTH(1) means no smoothing is desired;
      the useage of null values for other parameters depend on
      the application.
----------------------------------------------------------------