Program Maintenance Manual for the Reference Scene Software (RSS).

摘要

The Reference Scene Software (RSS) is a set of eleven CDC 6400 computer programs used in-house at the U.S. Army Engineer Topographic Laboratories (USAETL), Ft. Belvoir, Virginia, to produce simulated Plan Position Indicator PPI) radar scenes. The two inputs required by RSS are a matrix array (raster format) of digital terrain elevations and a corresponding vector digitized list of planimetry features (roads, lakes, railroads, cities, rivers, etc.). The output of RSS is raster format magnetic tape image of the circular PPI scene, which is later formatted onto 35mm film and machine compared to the actual PPI scene of the area to determine the goodness of correlation. These programs were originally developed by the Naval Training Equipment Center (NTEC), Orlando, Florida, for visual flight simulation. They were converted to run on the ETL CDC 6400 computer, new input and output routines were developed, and the radar modeling algorithm was changed to produce a better machine readable rather than better human readable scene. RSS is being used to determine the data base input requirements and the radar modeling algorithm parameters necessary for producing correlatable reference scenes. (Author)