导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (11): 3466-3475.doi: 10.7527/S1000-6893.2016.0044

• Electronics and Control • Previous Articles     Next Articles

Trajectory prediction of hypersonic vehicle based on adaptive IMM

ZHAI Dailiang, LEI Humin, LI Jiong, LIU Tao   

  1. School of Air and Missile Defense, Air Force Engineering University, Xi'an 710051, China
  • Received:2015-11-19 Revised:2016-02-17 Online:2016-11-15 Published:2016-03-03
  • Supported by:

    National Natural Science Foundation of China (61573374, 61503408); Aeronautical Science Foundation of China (20150196006, 20140196004)

Abstract:

To afford the prior information for intercepting the hypersonic vehicle through midcourse guidance based on predicted impact point, a strategy for trajectory prediction of the hypersonic reentry-glide vehicle is proposed. A set of aerodynamic parameters, which are linearly related to the target attitude, is given. The adaptive interactive multiple model (IMM) tracking algorithm is developed based on the dynamic model with aerodynamic parameters being the control input. The effectiveness of the algorithm is verified. Considering the linear characteristic of the parameters and the supposed maneuvering manners of the target, a method for trajectory prediction based on the least-square fitting is developed. Simulations show that in 100 s, the predicted position errors are less than 5 km, and the predicted velocity errors are less than 100 m/s, proving the effectiveness of the strategy in predicting the trajectories of regular maneuvering targets.

Key words: hypersonic vehicle, target tracking, prediction, adaptive, interactive multiple model, fitting

CLC Number: