长焦距全景式航空遥感器稳定系统的设计

Design of stabilization system of long focus panoramic aerial sensor

为了使长焦距全景式航空遥感器在高空恶劣的环境下获得高分辨率且清晰的图像,不但要克服飞机各种姿态变化引起的像移,而且要尽量消除振动带来的像移。根据地面分辨率的性能指标,并以此作为稳定系统设计的目标,选择相关的主动及被动减振方法。文中,以一长焦距全景式航空遥感器为例,通过分析地面分辨率以及相对振动残留误差的关系,讨论如何使用主动、被动减振技术得到满意的性能指标。最后由试验得出结论在随机振动环境下,利用主、被动减振技术可以很好的克服振动对地面分辨率所造成的影响。

To attain the best optimum resolution under adverse environmental conditions,the long focus panoramic sensors not only overcome the image motion arose by the change of the aero posture,but also eliminate the image motion caused by vibration. By the performance of GRD,which is the aim of stabilization system,initiative and passive vibration isolation are chose. In this article,a long focus panoramic sensor is used as a example to analyze the relationship between GRD and rudimental vibration error and how to attain the best performance by using initiative and passive vibration isolation. Finally,the conclusion is gained that using initiative and passive vibration isolation may well overcome the bad effect to GDR shook in random vibration.