摘要
针对传统光学遥感器的特点,文章分析了其进一步发展的局限性,如重量、体量的提升给研制、运载带来一系列技术难题,同时指出空间光学遥感器光学镜片使用传统单块刚性材料的现状与日益提高的空间分辨率之间的矛盾。文章针对5m以上超大口径光学镜片,介绍了4种新型大型镜片的实现方式,分别为分块折叠可展开主镜、稀疏孔径、大口径薄膜反射镜以及大口径衍射薄膜镜,探讨了各技术现阶段发展的难点,分析并指出分块可展开主镜是近阶段满足5m口径火箭内包络的切实可行的大口径光学镜片实现方法,为空间高分辨率遥感相机的进一步发展奠定了一定的基础。
According to the characteristics of the traditional optical remote sensor,this paper analyses the limitations of its further development. For instance the weight and volume expansion of the remote sensor brings a series of technical problems. In order to solve the contradiction between the utilizing of traditional single rigid reflector and the enhancing of remote sensor resolution,this paper introduces four methods to realize the large optics with more than 5 meters diameters,and analyses the technical difficulties and practical realization methods,and lay a foundation for the further development of high spatial resolution remote sensor.
出处
《空间电子技术》
2016年第2期20-25,43,共7页
Space Electronic Technology
关键词
遥感器
主镜
大口径
高分辨率
Remote sensor
Primary mirror
Large-aperture
High resolution
