Kalman Filter in INS and GPS Integrated Navigation System for Aircraft

Integrated navigation system is the most important navigation system nowadays.Integrated navigation system consists of many sensors and how to efficient process data from all sensors become a mostly problem.In integrated navigation system federation Kalman filter is the most advanced method,but the federation Kalman filter's construction is complex and the calculate estimate is great, so difficult to meet the high accuracy and real time request in high velocity fighting platform.The paper researches the Kalman filter in INS and GPS integrated navigation system using federation filter for reference and construct the state and measuring equation.