The Real-Time Closed Loop Test Facility enables the test of spaceborne GPS receivers. The simulation computer simulates the user satellite (orbit and attitude). The data will then be fed to the GPS simulator system. With this information artificial GPS RF signals can be generated to stimulate the GPS receiver. Key features are automatic data analysis and automatic test sequences.
Real-Time Closed Loop Tests of GPS receivers from LEO to GEO. Single or dual frequency receivers as well as SBAS capable receivers can be tested. Absolute navigation, relative navigation (e.g. formation flying, co-location of GEO satellites) and attitude determination using GPS signals are within the range of the possible applications.