Trajectory Prediction Method for High-Speed Aircraft Based on Unscented Transformation

Ballistic prediction is an important means to solve the problem of predicting and intercepting the landing point of high-speed aircraft. At the same time, it's needed to predict the subsequent trajectory after the high-speed aircraft enters the Blackout-zone. Therefore, it is necessary to conduct research on the trajectory prediction technology of high-speed aircraft. High-speed aircraft prediction research aims to solve the problem of how to calculate the aircraft state values at subsequent times based on the known aircraft state values at a certain moment and analyzes the error range of prediction results. This article proposes a High-speed aircraft trajectory calculation method based numerical method, which firstly analyzes the flight process of the aircraft at different stages and establishes an environmental force model of the aircraft, then, based on numerical methods, the initial state of the aircraft is extrapolated, finally, taking radar measurement error as an example, the error transfer process is calculated through traceless transformation. After simulation verification, the results show that the use of numerical trajectory prediction method based on untrace transformation can effectively predict the position of aircraft flying out of the Blackout-zone, and the algorithm is fast and effective, and can be put into practical application