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