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提出了一种基于天文观测的火星探测器自主天文导航方法,该方法利用由星敏感器视场内测量得到的火星及其卫星和某一恒星之间的星光角距,结合火星探测器的运动模型,通过Unscented卡尔曼滤波方法,即可获得高精度的火星探测器实时位置信息,计算机仿真结果证明了该方法的有效性。
An astronomical observational Mars spacecraft autonomous astronomical navigation method is proposed. This method utilizes the celestial angular distance between Mars and its satellite and one of the stars measured in the field of view of the star sensor, combined with the movement of the Mars probe Model, the unscented Kalman filtering method can obtain the real-time position information of the Mars rover with high precision and the computer simulation results prove the effectiveness of the method.