MATLAB Code Implementation for GPS Positioning with Advanced Satellite Selection Algorithms

This MATLAB-based system is specifically designed for GPS positioning applications. It can be deployed on highly maneuverable moving platforms to perform real-time tracking while displaying the number of satellites used for positioning and their corresponding identification numbers. The core algorithm is implemented according to the specifications in the accompanying PDF documentation, which includes advanced techniques like fuzzy satellite selection methods. The implementation involves key MATLAB functions for satellite data processing, position calculation using least squares estimation, and dynamic satellite selection based on elevation angles and signal strength. Additionally, the system provides comparative analysis by displaying Geometric Dilution of Precision (GDOP) values for different satellite selection strategies and measures the computational time required for each selection method. The code structure includes modular components for satellite ephemeris parsing, pseudorange calculation, and position estimation with error correction mechanisms. Overall, this sophisticated GPS positioning solution enables accurate location tracking with optimized satellite constellation selection.