An augmentation system uses earth stations that have been carefully surveyed, and their locations are known with great precision. As they receive signals from the GPS satellites, they are compared ...

This initiative aims to enhance the existing GPS constellation by integrating cost-effective small satellites, providing increased resilience for both military and civilian users. The R-GPS program ...

Satellite telemetry may also help answer ... However, biotelemetry does not usually provide information on an animal's location. Combining GPS and biotelemetry systems can link spatial and ...