The mirror repositioning system is one critical system in large-size deployable space telescopes that aids in correcting errors in mirror orientation once deployed. Stewart mechanism is employed for reorienting the mirror due to its potential for use in high-precision applications, and a high-range and high-accuracy Stewart platform for positioning the mirror was designed using dual-resolution actuators. System characterization is crucial for understanding, optimizing, and evaluating the performance of a system. It provides insight into a system’s behavior, strengths, weaknesses, and limitations, aiding in troubleshooting, design decisions, and quality assurance. Overall, it forms the foundation for ensuring the functionality, efficiency, and reliability of a system throughout its lifecycle. We discuss the techniques adopted for characterizing the mirror repositioning system and the methods employed for error reduction in the system.

中文翻译：

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空间望远镜高分辨率反射镜重定位六足机构的表征技术


反射镜重新定位系统是大型可部署太空望远镜中的关键系统之一，有助于纠正部署后反射镜方向的错误。由于 Stewart 机构在高精度应用中的应用潜力，因此采用 Stewart 机构来重新定向反射镜，并且使用双分辨率执行器设计了用于定位反射镜的大范围和高精度 Stewart 平台。系统表征对于理解、优化和评估系统性能至关重要。它可以深入了解系统的行为、优点、缺点和局限性，有助于故障排除、设计决策和质量保证。总体而言，它构成了确保系统整个生命周期的功能、效率和可靠性的基础。我们讨论了用于表征镜子重新定位系统的技术以及用于减少系统误差的方法。