A Fusion Estimation Method for Flight State Estimation

To get accurate estimation of flight state, a new fusion estimation method was presented. In the scheme, equipments of INS, GPS, wireless radio, and infrared equipments with different wavelength were considered. Firstly, three dimensional motion model of an aircraft was described, and then model simplification was discussed. By analysis of deferent equipment measurement errors, a new method for equivalent computational measurements and equivalent error were proposed. The new method was used for flight data processing. The experimental results show that fusion estimation outperforms any single measurement.