卫星光学敏感器视场有效性分析工具设计

为了提高分析的效率和准确性,基于SolidW orks平台开发了一个卫星光学敏感器视场有效性分析工具.该工具用于分析敏感器在卫星任务期间是否会因为视场问题而失效,以及何时失效.敏感器有效性分析所涉及的问题有:有效性判断的3个层次——敏感器系统、敏感器组和单敏感器的有效性判断;遮挡问题——敏感器会受到卫星部件或目标的遮挡;反光问题——敏感器会受到行星反光和卫星部件反光的干扰;运动问题——包括目标、卫星本体、卫星部件和敏感器的运动.给出了解决以上问题的软件设计方案.介绍了有效性分析功能的实现原理.给出了分析过程的5个步骤:定义时间,定义目标,定义部件运动,定义敏感器和执行分析.最后给出了一个实例演示,验证了该工具的功能.

Design of optical-effectiveness analysis tool for satellite optical sensors

An optical-effectiveness analysis tool for satellite optical sensors was developed based on SolidWorks platform to improve efficiency and accuracy of the analysis. The tool was used to exam whether and when the sensors would fail due to optical problems during the satellite mission. Considerations about the optical-effectiveness analysis included: three levels of sensor effectiveness judgment: system effectiveness, group effectiveness and individual effectiveness; blinding: sensor would be blinded by satellite components or targets; light reflecting: sensor would be interfered by light reflected from planets or satellite components; motions: motions of targets, satellite body, satellite components and sensors. Software design solutions for these issues were proposed. The implementation principle for the effectiveness analysis function was introduced. And a five-step analysis process was presented: defining mission time, defining targets, defining component motions, defining sensors, and doing analysis. An example was used to demonstrate and validate the function of the tool.