深空探测器借力飞行段的自主光学导航方法

Autonomous Optical Navigation Scheme for Deep Space Explorer when Swing-by Flight

提出了一种用于探测器借力飞行段的自主光学导航方案。该方案利用星敏感器以及光学导航相机,通过测量恒星平行光方向及对行星张角,利用几何关系计算出探测器的相对位置,并利用扩展卡尔曼滤波算法进行修正,最后通过仿真验证了这种自主光学导航方案的可行性。

An autonomous optical navigation scheme is described in this article, which is used when the explorer using the gravitation of planet to make orbit transformation. The relative position of the explorer can be determined by the direction of parallel light of the star and the angle to the planet, which are measured with star sensor and navigation camera. The result of simulation which is got by using the extended kalman filter shows that this method is feasible.