从Pleiades剖析新一代高性能小卫星技术发展

综述了著名的新一代极限性能高分辨小卫星Pleiades,说明了该卫星的技术特点,同时给出了其关键技术指标,并且有针对性地剖析了Pleiades在多星组网轨道设计、一体化超分辨焦平面设计、一体化综合电子学设计及敏捷姿态控制系统设计等方面所采用的先进技术和设计理念。在此基础上,提出了适应我国国情的小卫星新技术发展方向,包括CMOS TDI模式成像技术、高动态范围视频成像技术、基于可重构模块的柔性化集成技术、基于软件总线的星载软件设计技术以及星载一体化设计技术等,为今后我国研发具有更高的地面分辨率、在轨成像效率和成像质量的新一代高性能小卫星提供了新的思路。

Analysis of new generation high-performance small satellite technology based on the Pleiades

This paper reviewed the well-known limit performance of a new generation of high-resolution small satellite Pleiades. The technical characteristics of this satellite were described and its key technical indicators were also given. The advanced technology and design concepts of the Pleiades in the multi-satellite network orbit design, integration super-resolution focal plane design, integrated and comprehensive electronics design and agile attitude control system design were analyzed. On this basis, it also puts forward the development directions of new small satellite technologies to adapt to our national conditions, which included CMOS Time Delay Integration(CMOS TDI) mode imaging, high dynamic range video imaging, flexibility technology based on reconfiguable modules, on-board software design based on software bus, satellite integrated design, etc. All above could provide new ideas for us to research and develop new generation of high performance small satellites with higher ground resolution, higher in-orbit imaging efficiency and higher image quality in the future.