Hybrid Re-entry Guidance for Reusable Launch Vehicle

摘要：

　　A hybrid re-entry guidance approach,based on the nominal trajectory guidance method and predictor-corrector guidance,is proposed for the reusable launch vehicle(RLV).This approach generates a feasible re-entry trajectory which consists of pre-entry phase,optimized bank angle phase and predictor-corrector phase.With the help of quasi-equilibrium glide condition(QEGC),the angles constraints are transformed from re-entry constraints in optimized bank angle phase,and then guidance command is optimized using sequential quadratic program(SQP).In predictor-corrector phase,downrange errors are repeatedly calculated to update constant bank angle profiles.A bank reversal strategy based upon an azimuth error deadband is designed to control crossrange.Simulations with nominal and dispersion conditions demonstrate good performance of the guidance method.

关键词： hybrid re-entry guidance RLV QEGC SQP

作者: Wang Zhi Zhang Ran Li Huifeng

作者单位: School of Astronautics,Beijing University of Aeronautics and Astronautics,Beijing 100191,China

会议类型: 国际会议

会议名称: 2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2014-09-24（万方平台首次上网日期，不代表论文的发表时间）