国防科技大学学报Issue(2)：61-67,7.DOI:10.11887/j.cn.201402011
基于微分平坦的高超声速滑翔飞行器轨迹规划
Differential flatness based trajectory planning for hypersonic glide vehicle
摘要
Abstract
For the trajectory planning problem in hypersonic glide vehicle,a differential flatness based three-degree-of-freedom trajectory generation approach is proposed.Based on the flatness analysis of the simplified longitudinal motion model,the reference longitudinal trajectory planning problem was mapped into the flat output space to improve the solving efficiency by eliminating the dynamical constraints and reducing the design dimension.Then the initial problem was transformed into a nonlinear programming problem utilizing global polynomial approximations to the flat outputs.To compensate for the effects of the earth rotation and external disturbances,a Proportion-Differentiation control based reference trajectory tracking controller was designed with good convergence capability.By integrating the lateral motion determined by the error corridor of heading angle based bank angle revision,the three-degree-of-freedom gliding trajectory was ultimately generated.Numerical simulations were conducted to validate the feasibility and effectiveness of the approach presented here.关键词
滑翔飞行器/微分平坦/轨迹生成/全局插值Key words
glide vehicle/differential flatness/trajectory generation/global polynomial分类
航空航天引用本文复制引用
蔡伟伟,杨乐平,刘新建,朱彦伟..基于微分平坦的高超声速滑翔飞行器轨迹规划[J].国防科技大学学报,2014,(2):61-67,7.基金项目
国家部委资助项目 （）
