重复使用运载器无动力自动着陆制导技术  

Guidance technology for autolanding of unpowered reusable launch vehicle

作　　者：彭腾飞[1] 孟琳[1] 叶永强[1] 黄一敏[1] 李涛[1] 薛雅丽[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《太赫兹科学与电子信息学报》2014年第2期208-212,228,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：江苏省自然科学基金资助项目(BK2010507)

摘　　要：自动着陆段是重复使用运载器整个飞行任务的最后一个阶段,是指从距离地面3 000 m高度的自动着陆入口到重复使用运载器在跑道上着陆的这一段无动力飞行过程。利用工作频域内迎角和过载的关系得到迎角指令,并将其作为制导指令进行了相应的制导律设计。考虑到单轨迹线制导范围的局限性,还首次提出了多轨迹线制导的概念。仿真结果表明,该方案可以使得重复使用运载器以更大范围的初始纵向距离偏差实现安全着陆,以提升现有制导方案的制导能力。The autolanding phase is the last phase of Reusable Launch Vehicle(RLV) flight mission. This unpowered flight phase begins at AutoLanding Interface(ALI) that is typically at a 3 000 m altitude, and ends at touchdown on the runway. A method is introduced to obtain the attack angle command used as one of the guidance commands by utilizing its relationship with overload command in the working frequency domain. Considering the range limitations of single trajectory guidance method, the concept of multi-trajectory guidance is introduced. The simulation results show that it can make Reusable Launch Vehicle realize a safe landing with a wider range of initial longitudinal distance deviation and improve the capacity of the existing guidance scheme.

关 键 词：重复使用运载器 自动着陆 基准轨迹 制导律设计 多轨迹线制导 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]