; MAPDIF ;--------------------------------------------------------------- ;! Records differences between DDT test results and standards ;# ADVERB GENERAL ;----------------------------------------------------------------------- ;; Copyright (C) 1995 ;; Associated Universities, Inc. Washington DC, USA. ;; ;; This program is free software; you can redistribute it and/or ;; modify it under the terms of the GNU General Public License as ;; published by the Free Software Foundation; either version 2 of ;; the License, or (at your option) any later version. ;; ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; ;; You should have received a copy of the GNU General Public ;; License along with this program; if not, write to the Free ;; Software Foundation, Inc., 675 Massachusetts Ave, Cambridge, ;; MA 02139, USA. ;; ;; Correspondence concerning AIPS should be addressed as follows: ;; Internet email: aipsmail@nrao.edu. ;; Postal address: AIPS Project Office ;; National Radio Astronomy Observatory ;; 520 Edgemont Road ;; Charlottesville, VA 22903-2475 USA ;----------------------------------------------------------------------- ;--------------------------------------------------------------- MAPDIF LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC ---------------------------------------------------------------- MAPDIF Type: Adverb (Real(5,8)) Use: An Adverb for recording the differences between DDT output maps and the standard reference maps. The BITs differences are calculated as BITS = -3.3219 * LOG(DIFF/PEAK). DIFF is either the max difference between the images or the RMS difference. (LOG is the Base 10 Logarithm; 1/LOG(2) = 3.3219) MAPDIF(1-2,.) => peak, mean bits MAPDIF(3-5,.) => dx,dy,dT MAPDIF(.,1-8) => UVMAP, UVBEAM, APCLN, APRES, MXMAP, MXBEAM, MXCLN, IVTESS ----------------------------------------------------------------