Matlab based application for GPS observations

Abstract

This application is a coilection of programs used for the analysis of GPS (Global Positioning System) data. It uses the GPS broadcast carrier phase and pseudo-range observable to estimated three-dimensional relative positions of ground stations and satellite orbits. The software is designed as a tooibox for MATLAB. It consider the precise positioning using the not difference model and the simultaneous use of phase and pseudo-range data observable. All GPS phase and pseudo-range data input is via the RfNEX format, and the orbital data are in SP3 format. The software is composed of distinct modules, which perform the fiínctions of preparing the data for processing, generating reference orbits for the satellites, computing the matrix of distinct models and performing a least squares analysis.