We fabricated a Yb-doped yttrium aluminium garnet (Yb: YAG) crystal-derived silica fiber
(YCDSF) using an assembly consisting of a YAG crystal rod and silica tube on a CO_2 laser …

航海导航系统是各类军民海洋运载器实现极区顺利到达以及极区安全航行的先决条件. 然而,
南北极区特殊环境造成航海导航系统性能下降甚至无法应用. 为从根源上认知航海导航系统极区 …

For solar system boundary exploration mission, this paper designed an X-ray pulsar-based
navigation (XNAV) scheme. The Fisher information matrix is used to choose optimal pulsar …

太空辐照环境和高能粒子往往会导致红外相机在轨运行时出现新的坏像元,
严重影响相机提取的星点目标质心坐标的精度. 针对该问题, 提出了一种基于灰度梯度和稀疏 …

以中国首次小行星探测任务为背景, 根据星载相机获取的光学影像构造三种观测量,
分别为小行星相对于航天器的高度角和方位角, 赤经赤纬以及探测器与行星/小行星之间的夹角 …

As a new spacecraft autonomous navigation technology, X-ray pulsar-based Navigation
(XNAV) is one of the most promising navigation technologies for deep space exploration …

为提高地月往返航天器导航效率与在轨生存能力, 减小地面测控负担, 提出了一种仅利用背景
恒星成像观测的地月空间自主导航方法. 根据恒星光行差效应建立观测模型 …

针对火星绕飞自主导航的高精度要求, 利用火星表面的陆标作为新的测量信息源,
通过对陆标特征提取识别获取测量信息. 在仅观测火星地表陆标图像信息的基础上 …

In order to solve the problem of terrain recognition in the case of sample data and improve
the terrain detection ability of unmanned platform in complex environment, a visual touch …

The dynamic target tracking problem is one of the essential issues on satellite surveillance
and attitude pointing control. Because of target's non-cooperative characteristic and the …