Flight trajectory online planning method based on parameter identification

The invention provides a flight path online planning method based on parameter identification. Based on an aircraft dynamics model, trajectory sensitive parameters such as thrust, a resistance coefficient, a lift coefficient and atmospheric density of a flight trajectory device are selected, different deviation combination conditions are considered, and optimal flight trajectory library design under each deviation condition is completed offline. And establishing a deviation identification model of each track sensitive parameter, and adopting a track sensitive parameter deviation online identification method to realize online deviation identification of each parameter based on sensor measurement data in the flight process. And based on the deviation condition of the track sensitive parameters, selecting a corresponding flight track from the track library, and completing the on-line planning of the flight track. Through the method, the adaptability of the aircraft to the deviation can be enhanced, the flight mi