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A Relative Guidance Algorithm for Proximity of Docking
Pages: 27-30,41
Year: Issue:  5
Journal: AEROSPACE CONTROL

Keyword:  对接靠拢自主相对制导卡尔曼滤波;
Abstract: 自主相对导航技术是空间交会对接靠拢段的关键技术之一.Unscented卡尔曼滤波(UKF)是基于Unscented Transform(UT)变换的一种新型滤波器,它避免了扩展卡尔曼滤波(EKF)的线性化误差,不必计算Jacobian矩阵,而且其状态估计精度要比EKF的高.本文研究了基于UKF滤波器的自主相对导航算法.该算法根据追踪航天器上交会雷达的测量值,采用UKF滤波器对追踪航天器和目标航天器之间的相对位置和速度进行了估计,仿真结果表明该算法可以满足位置和速度估计精度的要求.
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