A CONNECTED LEAST-SQUARES ADJUSTMENT OF NAVIGATION DATA

An algorithm is described that will determine the position of a ship in the least-squares optimal sense, given infrequent and irregularly spaced estimates of the ship's position and information on the ship's attempted course and speed. The requirements imposed on the solution are: (1) that it be continuous; (2) that it be continuous in the first derivative except at points of ordered intentional speed and course change (e.g., eliminating fictitious discontinuities in the Eotvos correction for gravity data); and (3) that it accommodate short-period small adjustments to an overall course.

• Supplemental Notes:
  • Prepared by National Oceanic and Atmospheric Administration, Miami, Fla. Atlantic Oceanic and Meteorological Labs.
• Corporate Authors:

  National Oceanic and Atmospheric Administration

  Environment Research Laboratories
  Boulder, CO  United States  80302
• Authors:
  • Dorman, L M
  • Lavelle, J W
• Publication Date: 1974-7

Media Info

• Pagination: 62 p.

Subject/Index Terms

• TRT Terms: Navigational aids; Navigational satellites; Pilotage; Position fixing; Satellite navigation systems
• Old TRIS Terms: Position finding
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00084843
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NOAA-TR-ERL-303 Tech. Rpt., AOML-15
• Files: TRIS
• Created Date: May 19 1975 12:00AM