星光折射连续修正方法及制导规划

针对星光折射模型本身固有的缺点，对星光折射连续修正方法进行了研究，该方法首先探索折射星的分布规律，而后采用Unscented卡尔曼滤波算法+多星连续观测的方案实现定位。同时，对可用星与选星要素和基于突防规划的星光制导弹道设计两方面进行了研究，在星光制导制约机理研究的基础上，提出了惯性/星光制导规划方法，该方法包括导航星的优选策略、导航星优选技术和星点位置的精确计算3步。最后，介绍了星光制导系统的系统组成和功能原理。

Stellar refraction: Continuous correction and guidance planning

To overcome the intrinsic shortcomings of the stellar refraction model, this study examines the continuous correction of stellar refraction. First of all, the distribution rule of refraction stars is explored, followed by the location of the stars through Unscented Kalman Filter and continuous observation of multiple stars. Meanwhile, the constraint mechanism of stellar guidance is studied, involving available stars, star selection elements and design of the stellar guidance trajectory based on penetration planning. Furthermore, an inertial/stellar guidance planning method involving the optimal selection strategy and technology of the navigation star and the accurate calculation of star position is proposed. Finally, the composition and working principle of the stellar guidance system are introduced.