Dual-level Path-trajectory Generation with Complex No-fly Zone Constraints for Hypersonic Vehicle

被引：0

作者：

Zhang Y. ^{[1
]}

Zhang R. ^{[1
]}

Li H. ^{[1
]}

机构：

[1] School of Astronautics, Beihang University, Beijing

来源：

Yuhang Xuebao/Journal of Astronautics | 2022年 / 43卷 / 05期

关键词：

Analytical solution; Dual-level planning; Hypersonic vehicle; No-fly zone avoidance; Path planning;

D O I：

10.3873/j.issn.1000-1328.2022.05.007

中图分类号：

学科分类号：

摘要：

Aiming at the avoidance for hypersonic vehicle in complex no-fly zones, in order to solve the problem that the existing trajectory generation methods are strongly dependent on the initial guess, a path-trajectory generation method is proposed based on the dual-level planning modeling. Among them, the upper level is for path planning, providing path points information for the trajectory to avoid local solutions; the lower level is for trajectory planning, using the path points output by the upper layer to divide the trajectory into several sub-segments with small lateral maneuver, and the lateral and longitudinal flight profiles are analytically solved to reduce the simplification error of the motion model. Numerical simulations show that, compared with the existing methods, this method can select the path with better indicators and then improve the global performance. In addition, the guidance error of analytical flight profile is less than 0.03%, which solves the analytical problem of large-scale lateral maneuvering. © 2022, Editorial Dept. of JA. All right reserved.

引用

页码：615 / 627

页数：12

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