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Illumination effects on satellite articulation characterization from a trajectory matrix using optimization

机译:使用优化对轨迹矩阵中的卫星清晰度表征的照明效果

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Autonomous on-orbit satellite servicing and inspection benefits from an inspector satellite that can autonomously gain as much information as possible about the primary satellite. This includes performance of articulated objects such as solar arrays, antennas, and sensors. This paper presents a method of characterizing the articulation of a satellite using resolved monocular imagery. A simulated point cloud representing a nominal satellite with articulating solar panels and a complex articulating appendage is developed and projected to the image coordinates that would be seen from an inspector following a given inspection route. A method is developed to analyze the resulting trajectory matrix. The developed method takes advantage of the fact that the route of the inspector satellite is known to enable the reprojection error to be used as an objective function for optimization of a model that best describes the feature points seen. Once the model is calculated, it can be compared to the known truth. Simulating the input data allows different inspection routes to easily be evaluated. Particularly, the effects of fly-by and natural motion circumnavigation inspection routes with sub-optimal illumination are investigated using a set of newly proposed evaluation metrics.
机译:自主的在轨卫星服务和检查得益于检查卫星,该卫星可以自主获取尽可能多的有关主卫星的信息。这包括铰接物体(例如太阳能电池板,天线和传感器)的性能。本文提出了一种使用分辨出的单眼影像来表征卫星的关节运动的方法。开发了一个模拟的点云,它代表具有铰接的太阳能电池板和复杂的铰接附件的标称卫星,并将其投影到在给定的检查路线下从检查员看到的图像坐标。开发了一种方法来分析所得的轨迹矩阵。所开发的方法利用了这样一个事实,即检查卫星的路径已知可以使重投影误差用作优化模型的目标函数,该模型可以最好地描述所看到的特征点。一旦计算出模型,就可以将其与已知事实进行比较。模拟输入数据可以轻松评估不同的检查路线。特别是,使用一组新提出的评估指标研究了次优照明下的飞越和自然运动绕行检查路线的影响。

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