大口径甚高分辨率空间光学遥感器技术途径探讨

Solutions for Space Optical Remote Sensor with Large Aperture and Ultrahigh Resolution

增长焦距、加大口径是提高空间光学遥感器空间分辨率的主要手段,但焦距和口径的增大意味着遥感器体积、研制难度和制造成本的骤增。要达到可见光甚高分辨率,采用传统的设计思想和制造工艺已无法实现,更何况体积和质量巨大也难以发射。本文介绍和分析了几种解决大口径系统的方案,包括:分块可展开成像系统、稀疏孔径系统和干涉成像系统。

Future space based imaging system require increasingly larger aperture sizes to keep pace with the demand for high spatial resolution. The cost and weight becomes increasingly prohibitive for aperture greater than 1 meter. This paper gives some possible solutions, these include: deployable segmented imaging system, sparse aperture system and interferometric imaging system.