Accession Number : ADA184453
Title : Dynamic Positioning at Sea Using the Global Positioning System.
Descriptive Note : Master's thesis,
Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Personal Author(s) : Ezequiel,Augusto M
PDF Url : ADA184453
Report Date : Jun 1987
Pagination or Media Count : 123
Abstract : Dynamic positioning of a moving platform is analyzed data from the Global Positioning System (GPS) acquired in Phase II of the Seafloor Benchmark Experiment on R/V Point Sur in August 1986. GPS position determinations are compared to simultaneous Mini-Ranger fixes. The GPS positions computed using only broadcast ephemeris data were within 20 m from the Mini-Ranger fixes when data from four satellites were used and within 30 m when data from three satellites and a geoidal height constraint were used. It was found that the position accuracy is degraded when data from a satellite reaching culmination is used.
Descriptors : *GLOBAL POSITIONING SYSTEM, *NAVIGATION SATELLITES, NAVIGATION COMPUTERS, EPHEMERIDES, ACCURACY, SHIPBOARD, CALIFORNIA, THESES
Subject Categories : Underwater and Marine Navigation and Guidance
Distribution Statement : APPROVED FOR PUBLIC RELEASE