Monitoring of GPS (Global Positioning System) System Performance

摘要

The Global Positioning System (GPS), a worldwide satellite-based navigation system developed by the Department of Defense, is scheduled to become operational in late 1988. The system has the potential to become the primary radionavigation system for the United States. This study is an assessment of GPS system integrity and navigation performance using monitored satellite signals and processed navigation data, as well as the analyzed data content of advisory and health messages. Improvements to the integrity of a basic GPS system using additional signal processing, aiding, and enhanced monitoring techniques are discussed.