Patent ID: 6466888
Filing Date: 2002-10-15
Classification: G05D

Abstract:
A method for estimation of aircraft flight data during flight in a real time fashion, comprising the steps of:(a) defining input parameters derivable from variable data generated by aircraft sensors during said flight of the aircraft and measurable in a nonrotating reference frame associated with the aircraft; (b) determining said input parameters and coinciding reference data at a plurality of flight conditions representing a predetermined flight domain of the aircraft; (c) establishing a learned relationship between said determined input parameters and said coinciding reference data, represented by a plurality of nonlinear equations; (d) storing said nonlinear equations onboard the aircraft; (e) measuring real time values of said variable data during said flight of the aircraft; (f) calculating real time values of the input parameters; and (g) processing said real time values of the input parameters in accordance with said nonlinear equations to determine said estimation of the aircraft flight data, including angle of attack.