An Interactive Fortran Program for Determining Reliability of Pseudo-Range Geodetic Point Positioning Using the Global Positioning System.
Abstract
A transportable, generic, interactive FORTRAN program for the covariance analysis off pseudo-range experiments in the Global Positioning System (GPS) is presented for use in simulation studies, experiment planning and systems development. The interactive mode is especially suited for covariance analyses involving multiple parameters, by allowing ease of operation for data production and providing savings in time when computing geodetic point positioning. The mathematical models on which the program is based provide an overview of the GPS point positioning process, emphasizing the areas of interest to geodesy. Also, special emphasis is placed upon station tracking geometry. The FORTRAN program allows for understanding correlation coefficients between the various parameters. A separate model suitable for covariance analysis is also presented. This interactive FORTRAN program has been implemented on the UNIVAC at Defense Mapping Agency Hydrographic/Topographic Center. The program is effective and efficient in helping to establish the realiability of the GPS point positioning technique. The program can be used in simulation studies, planning test and evaluation experiments, and GPS software development. The question/answer method has been used to develop this iterative program which enables the user to sit at the computer terminal (scope) and rapidly assess the expected accuracy of the GPPS point positioning technique as applied to a particular survey of interest.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 13, 1984
- Accession Number
- ADA147133
Entities
People
- J. R. Ackeret