Enhancing Navigation Accuracy through Cooperative Satellite Networks

Cooperative satellite networks have the potential to enhance navigation accuracy by optimizing constellation design reducing Geometric Dilution of Precision (GDOP). This study analyzes how satellite architecture parameters and receiver position influence GDOP, through simulations with varying numbers of satellites, orbital planes, altitudes, and inclinations. Results show that high-altitude constellations outperform lower-altitude setups in terms of GDOP, even with fewer satellites. Increasing the satellite number improves GDOP, though this effect diminishes beyond a threshold. Receiver locations and elevation constraints also significantly impact GDOP. These insights support the design of adaptive cooperative satellite networks, optimizing satellite selection based on the receiver position.