MATLAB Implementation of GPS Satellite Positioning

This MATLAB program provides a complete implementation of GPS satellite positioning. The code includes detailed English documentation and features an executable int.m main file that serves as the primary entry point for running the positioning algorithms. For beginners, this program serves as an excellent educational tool, helping them understand the fundamental principles of GPS positioning through practical MATLAB implementation. The core algorithm likely involves processing pseudo-range measurements from multiple satellites to calculate receiver coordinates using trilateration techniques, possibly implementing a least-squares estimation approach for position calculation. The program offers additional functionalities such as satellite orbit visualization, allowing users to better comprehend satellite trajectories and orbital mechanics. This visualization component probably utilizes MATLAB's 3D plotting capabilities to display satellite positions in Earth-centered Earth-fixed coordinates. The implementation may include functions for reading ephemeris data, calculating satellite positions using Keplerian orbital parameters, and simulating the geometric relationship between satellites and ground receivers. Overall, this program serves as a practical technical tool that enables users to gain deeper insights into GPS satellite positioning technology through hands-on code exploration and algorithm analysis. The modular structure likely separates functionality into distinct components for signal processing, coordinate transformation, error modeling, and result visualization.