多星敏安装矩阵快速标定方法及精度验证  

Fast Calibration Method and Accuracy Verification of Multi-Star Sensor Installation Matrix

作　　者：刘莉[1] 汪红强[1] 杨鑫辉 蒋金雄 肖倩[1] 丁磊 朱海峰 

机构地区：[1]航天恒星科技有限公司遥感测绘事业部,北京 [2]航天恒星科技有限公司市场研发部,北京

出　　处：《图像与信号处理》2025年第1期1-11,共11页Journal of Image and Signal Processing

摘　　要：针对小卫星平台姿态精细化快速处理需求,需要在轨对多个星敏感器进行安装矩阵标定,获得三轴高精度姿态测量信息。由于小卫星敏捷成像中,有效星敏的观测数据可能是其中一部分,因此如何快速标定各个星敏感器的安装矩阵,以实现任意星敏感器组合定姿结果精度一致是多星敏标定的核心。文章提出了一种小卫星多星敏安装矩阵的快速标定方法,不需要地面定标场成像及定标处理,可实现任意星敏组合定姿的姿态数据精度一致。经过某星座卫星在轨试验数据表明,该方法获得多星敏安装矩阵可达到任意星敏组合的定姿精度优于1角秒,无控几何定位精度优于8米。该方法快速高效,节省在轨测试时间,为后续高精度几何定标提供精确的姿态参数,进而为小卫星星座星群快速几何定标和应用效能发挥提供支撑。To meet the demand for precise and fast attitude processing of small satellite platforms, it is necessary to calibrate the installation matrix of multiple star sensors in orbit to obtain high-precision three-axis attitude measurement information. Due to the fact that in agile imaging of small satellites, the observation data of effective star sensors may be a part of it, how to quickly calibrate the installation matrix of each star sensor to achieve consistent accuracy in the attitude determination results of any combination of star sensors is the core of multi-star sensor calibration. This article proposes a fast calibration method for a small satellite multi-satellite sensitive installation matrix, which does not require ground calibration field imaging and calibration processing and can achieve consistent attitude data accuracy for any combination of satellite-sensitive positioning. According to the in-orbit test data of a certain constellation of satellites, this method can achieve an attitude accuracy of over 1 arcsecond for any combination of star sensors by obtaining a multi-star sensor installa

关 键 词：星敏 安装矩阵 标定 精度验证 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]