s
###
DOI:
飞控与探测:2021,(3):08-14
本文二维码信息
码上扫一扫!
利用视加速度补偿和推力逐级释放的垂直着陆制导方法
周 鼎, 陈韦贤, 邱 伟
(上海宇航系统工程研究所)
Guidance of Powered Landing Using Apparent Acceleration Compensation and Thrust Level-Wise Release
ZHOU Ding, CHEN Weixian, QIU Wei
(Aerospace System Engineering Shanghai)
摘要
相似文献
参考文献
本文已被:浏览 75次   下载 46
    
中文摘要: 针对运载火箭子级垂直返回着陆段的制导问题,本文在应用凸优化的滚动时域在线规划基础上研究了制导鲁棒性的改善策略。为应对着陆后期控制能力不足的情况,在滚动规划过程中引入了推力上界逐级释放的策略。同时,考虑缓解干扰和误差累积的影响,在制导周期内引入视加速度信息对在线规划的推力指令进行补偿,以进一步改善滚动规划的递归可行性。最后,通过数值算例仿真及对比分析验证所提出的补偿策略的有效性。
中文关键词: 垂直返回;着陆制导;视加速度补偿;推力逐级释放;凸优化
Abstract:The robustness improvement strategy for guidance of rocket powered vertical landing is investigated in this paper based on the receding horizon online convex optimization. The upper bound of thrust in receding horizon planning is level-wise released to cope with insufficient control ability during the ending phase of landing. Meanwhile, the online planned thrust command is compensated using apparent acceleration within each guidance cycle to mitigate the effect of disturbance and accumulative error, improving the recursive feasibility of receding horizon planning. Finally, the effectiveness of proposed strategies is validated with numerical experiments and comparative analysis.
keywords: vertical landing; landing guidance; apparent acceleration compensation; thrust level-wise release; convex optimization
文章编号:20210302     中图分类号:TN911.73; TP391.9    文献标志码:A
基金项目:
作者单位
周 鼎 上海宇航系统工程研究所 
陈韦贤 上海宇航系统工程研究所 
邱 伟 上海宇航系统工程研究所 
Author NameAffiliation
ZHOU Ding Aerospace System Engineering Shanghai 
CHEN Weixian Aerospace System Engineering Shanghai 
QIU Wei Aerospace System Engineering Shanghai 
引用文本:
周 鼎,陈韦贤,邱 伟.利用视加速度补偿和推力逐级释放的垂直着陆制导方法[J].飞控与探测,2021,(3):08-14.

分享按钮