Trajectory Planning for Hypersonic Glide Vehicle Entry Guidance
Trajectory design ofhypersonic glide vehicle (HGV) is an important part for its system design and entry guidance research. Usually, trajectory design problems can solved as optimal control problems (OCP), but it is not effective because of its calculation cost In this paper, parameterized angle of attack on normalized energy interval is used in trajectory optimization based on drag acceleration profile which is an reduced order design method which is an effective one. In this method, Cubic spline interpolation method can be used to depict the reference drag acceleration profile based on energy interval, Gauss-Lobatto quadrature rule used to calculate range and heating load with high accuracy. The conclusion shows this alternate method can be used to obtain specific range trajectory with minimum heating load This reference trajectory planning method is simple and effective for reference trajectory design for entry guidance of HGV, its rapidity is the most critical characteristic for onboard guidance.
hypersonic glide vehicle glide trajectory trajectory optimization drag-energy profile cubic spline interpolation gauss-lobatto quadrature
Wang Chenxi Li Xinguo
College of Astronautics.Northwestern Polytechnical University, Xian 710072, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
664-667
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）