An assessment of a synergistic GPS/INS solution to the GPS integrity problem

Summary form only given. The authors describe a synergistic combination of existing systems in a novel way: a minimal-cost, minimum-risk, and maximum-gain solution to the integrity problem. The solution uses an innovative method of updating an INS (inertial navigation system) with GPS (Global Positioning System), and extends the amount of time available to the GPS operational control system (OCS) to detect an integrity failure, and act to remove the signal from service with a SATZAP capability. The authors first describe the combined system architecture for the aircraft GPS/INS navigation system as well as in the GPS OCS. The approach to evaluating the capabilities of the proposed system is then described