【摘要】 采用星敏感器测量卫星姿态是现行方法中精度最高的 ,而星敏感器的遮光罩设计是其中关键技术之一。星敏感器的精度取决于星点的位置计算精度 ,而星点位置计算需要有效的提取星点 ,这则取决于遮光罩对杂光的消除量级。针对这一情况 ,本文着重阐述遮光罩的设计 ,并采用一套 Opti CAD的光学软件和 MONTE- CARLO算法对进入遮光罩的光线进行模拟。最后对其结果分析、计算更多还原

【Abstract】 Measurement of satellite attitude with star sensor is one with highest accuracy among the current measuring methods. The design of lens hood for star sensor is one of the critical techniques. The accuracy of the star sensor depends on the calculation accuracy of star position, but the calculation of star position needs effective star position collecting. The star position collecting depends on the degree of eliminating stray light by lens hood. The paper puts emphasis on the design of the lens hood. A set of OptiCAD optical software and Monte Carlo algorithm are applied to simulation of the light of lens hood. The simulation results are analyzed and calculated in the end.更多还原