Flight trajectory online planning method based on parameter identification

The invention discloses a flight trajectory online planning method based on parameter identification, and belongs to the technical field of aircraft trajectory design and guidance. 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