《Real-Time Navigation Using the Global Positioning System》.pdfVIP

Real-Time Navigation Using the Global Positioning System Real-Time Navigation Using the Global Positioning System Dan Simon and Hossny El-Sherief, TRW Ballistic Missiles Division For more than a decade, TRW has been involved in aerospace applications of the Global Positioning System (GPS). TRW Ballistic Missiles Division first began working with GPS on a Minuteman missile test flight program in 1980. Since then, TRW has applied GPS to programs such as the Peacekeeper missile, the F-22 fighter aircraft, the Orbital Maneuvering Vehicle, Brilliant Pebbles, and classified satellites. This paper presents the results of an investigation of the application of GPS to real-time inte- grated missile navigation. We present quantifiable measures of navigation accuracy as a function of GPS receiver parameters. We also formulate some new phase-locked loop (PLL) filter designs, and demonstrate their superiority over more conven- tional filters. The National Aeronautical Association describes the Global Positioning System as “the most significant development for safe and efficient naviga- tion and surveillance of air and spacecraft since the introduction of radio navigation 50 years ago” [1]. The successful performance of GPS in the Persian Gulf War in January 1991 resulted in an explosive demand in the military for this satell