Comparative Performance Analyses of GPS Receivers under High-Dynamic Conditions

The KSLV-I GPSR that is the first GPS receiver utilized on a satellite launch vehicle developed by KARI should operate normally under harsh environments such as extremely high vibration and shock, wide operating temperature range as well as high-dynamic conditions. Several extensive terrestrial tests have been already done in order to verify performance of the KSLV-I GPSR before flight. This paper deals with comparative performance analyses between the KSLV-I GPSR and other two GPS receivers without velocity and altitude restrictions under high-dynamic conditions. The tracking capability and accuracy of the GPS receivers are compared using a GPS signal simulator with various scenarios like a centrifuge, a satellite launch vehicle, and a spacecraft.