摘要
低轨小卫星组网是近期国际航天发展的热点,美、英等纷纷开启低轨通信和导航小卫星星座建设,抢占低轨小卫星星座发展的先机。本文聚焦低轨小卫星星座在测绘领域的应用,分析了低轨小卫星星座在地形测绘、导航增强、物理场感知、海洋测高等专业领域的应用优势和应用潜能;提出了低轨小卫星在测绘领域应用需要突破的共性关键技术,以及不同功能测绘卫星平台和载荷需要突破的特有关键技术;描述了低轨小卫星星座在各个测绘领域的未来发展方向。
LEO small and micro satellite constellations are the hotspot in the recent aerospace development.World powers such as the United States and the United Kingdom have all started the LEO small satellite constellation construction for communication and navigation to seize the opportunity in this area.Focusing on the discipline of surveying and mapping,we mainly analyze the application superiority and potential of LEO small and micro satellite constellation for fields like topographic mapping,navigation enhancement,physical field perception and ocean altimetry.The shared key technologies of small and micro satellite constellation on surveying and mapping are listed,as well as some specific technologies of satellite platforms and payloads for different surveying and mapping scenarios.The future development of LEO small and micro satellite constellation on each field of surveying and mapping is described.
作者
杨元喜
王建荣
孙中苗
楼良盛
刘晓刚
任夏
YANG Yuanxi;WANG Jianrong;SUN Zhongmiao;LOU liangsheng;LIU Xiaogang;REN Xia(Xi'an Research Institute of Surveying and Mapping,Xi'an,Shaanxi 710054)
基金
国家自然科学基金基础科学中心项目(42388102)
国家自然科学基金重点项目(41931076)
崂山实验室科技创新项目(LSKJ202205101)
国家重点研发计划项目(2020YFB0505800)。
关键词
小卫星
地形测绘
导航增强
物理场感知
海洋测高
small satellite
topographic mapping
navigation enhancement
physical field perception
ocean altimetry
