Accession Number : AD0771994

Title :   CONRAD: A Program to Contour Radar Data.

Descriptive Note : Final technical rept.,

Corporate Author : BRADFORD COMPUTER AND SYSTEMS INC NEW YORK

Personal Author(s) : Fleshel,Bernard

Report Date : DEC 1973

Pagination or Media Count : 68

Abstract : A contour generating system (CONRAD) is described whose input is either a UNAMACE created magnetic tape or radar altitude data. CONRAD is a modified version of CONPLOT 2 for a UNIVAC 1108 - EXEC 8 computer. Output of this system is a large cartographic quality contour map which can be combined to form still larger maps. This contour map includes: (a) Universal Transverse Mercator Grid; (b) variable contour levels; (c) multiple labelled and broadened index contours; (d) depression indications; and (e) a variable output plotting scale. The following data handling techniques are used: (a) parallel processing; (b) random access; (c) binary searching; and (d) binary sorting. The internal processing of the input data includes: (a) redundant data elimination; (b) noise elimination and data smoothing by either an Area Smoothing Algorithm or a Least Squares Smoothing Algorithm; (c) automatic mosaicking of multiple models into a single large plotted map; and (d) dynamic allocation of drum storage. (Author)

Descriptors :   *Radar mapping, *Computer programming, *Parallel processing, Compilers, FORTRAN, Contours, Algorithms

Subject Categories : Cartography and Aerial Photography
      Computer Programming and Software
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE