Accession Number : AD0842732

Title :   Investigation of Truncation Error in Least Squares Digital Filtering of Azusa Data.

Corporate Author : GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CA

Personal Author(s) : Henry, Patrick

Report Date : 15 SEP 1960

Pagination or Media Count : 107

Abstract : The selection of the proper filter needed for smoothing any specific data is aided by knowledge of the output truncation error of the filter under consideration. Graphs of this error versus the number of points of the filter are presented for eight main regions of a typical Centaur Twenty-Four Hour Orbit Trajectory. The coordinate system utilized in the investigation was the Azusa tracker coordinates referenced to a tracker centered, north-east rectangular coordinate system. Two tracker locations were necessary in order to track the eight regions involved in the study. These two locations are: (1) Cape, Canaveral, Florida; (2) Kapingamarangi, Solomon Islands. Filters of order one, two and three with midpoint and endpoint prediction for position to position to velocity smoothing are investigated. (Author)

Descriptors :   *INFORMATION THEORY), (*GUIDED MISSILE TRACKING SYSTEMS, LAUNCH VEHICLES, DIGITAL SYSTEMS, ORBITS, PACIFIC OCEAN ISLANDS, FLORIDA, POSITION FINDING, LEAST SQUARES METHOD, RADAR TRACKING, GRAPHICS, ERRORS.

Subject Categories : Cybernetics
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE