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星敏感器作为高精度姿态测量单机,为高精度姿态控制提供前提保障。确保星敏感器空间指向正确性对姿控系统至关重要。基于此提出了一种在外场观星试验中,通过测试星敏感器地方时惯性指向来确认空间指向的方法,该方法结合格林尼治恒星时概念,通过地心赤道惯性坐标系与当地地理系之间的转换关系进行算法设计,是验证选用的星敏感器空间指向正确与否的重要手段。
Star sensor as a high-precision attitude measurement stand-alone, high-precision attitude control to provide the premise of protection. Ensuring the correct orientation of the star sensor space is crucial to the attitude control system. Based on this, a method of confirming the spatial orientation by testing the inertial orientation of the star sensor in the field stargazing experiment is proposed. The method combines the concept of the Greenwich star, the space coordinate between the geocentric equatorial inertial coordinate system and the local geography The conversion algorithm design, is to verify the selection of star sensor space is an important means of pointing to the right or not.