Volume 37, Number 6, December 2019
|Page(s)||1102 - 1110|
|Published online||11 February 2020|
Trajectory Estimation of Hypersonic Glide Vehicle Based on Analysis of Aerodynamic Performance
School of Astronautics, Northwestern Ploytechnical University, Xi'an 710072, China
2 Shaanxi Key Laboratory of Aerospace Flight Vehicle Technology, Xi'an 710072, China
Due to high speed and high maneuverability of hypersonic glide vehicles (HGVs), the state estimation of such targets has always been a research hotspot. In order to improve accuracy of the trajectory estimation, a nonlinear aerodynamic parameter model for target estimation based on aerodynamic performance analysis is proposed. Firstly, the dynamic characteristics of the hypersonic glide vehicle during the hypersonic gliding stage was analyzed. Then, aiming at HTV-2-liked vehicle, the engineering calculation method was used to form the reference aerodynamic model for the target estimation. Secondly, a deviation model described by first-order Markov process was introduced to compensate the uncertainties of the unknown maneuver information from the target. Finally, extended Kalman filter was utilized to estimate the state of the target. The simulation results show that the proposed model is able to improve the accuracy of acceleration estimation for the HTV-2-liked hypersonic gliding vehicles.
Key words: hypersonic gliding aircraft / maneuvering target estimation / aerodynamic performance / model for aerodynamic parameter
关键字 : 高超声速滑翔飞行器 / 机动目标估计 / 气动性能 / 气动参数模型
© 2019 Journal of Northwestern Polytechnical University. All rights reserved.
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