“一带一路”区域国产中高分辨率宽波段多光谱卫星数据获取技术研究

Research on Data Acquisition Technology of Chinese High-resolution Broadband Multispectral Satellites in the“The Belt and Road Initiative”Region

大区域数据快速拍摄获取是遥感卫星任务规划领域的重要研究课题,依托“国产中高分辨率宽波段多光谱卫星数据集构建和高效国际化服务”项目,使用吉林一号光谱01/02星开展了对“一带一路”沿线65个国家和地区三年两期的有效覆盖。总结了项目大区域数据获取的策略方法和经验,重点介绍了数据获取相关的星地资源等各类影响因素、大区域按时相划分策略、以及基于云量预报有效成像条带的大区域动态规划流程,即在卫星单次过境范围内,结合云图选取最大概率获取有效数据的成像条带。该研究已为项目提供常态化支持,相关方法和项目经验可为一般卫星遥感大范围、广区域数据获取任务提供参考借鉴。

Rapid acquisition of large area data is an important research topic in the field of remote sensing satel⁃lite task planning.Relying on the project of"Data Cube for large coverage datasets of Chinese high resolution and broadband and multispectral satellite constellation",Jilin-1GP01/02 satellite was used to carry out effective coverage of 65 countries and regions along the"The Belt and Road Initiative"twice within three years.This pa⁃per summarizes the strategy,methods and experience of data acquisition in large areas of the project,and focus⁃es on various influencing factors such as the resource of satellites and ground stations related to data acquisition,the strategy of dividing large areas in time and phase,and the dynamic planning process of large areas based on effective imaging strips of cloud forecast,that is,within the single transit range of the satellite,,select the imag⁃ing strips with the maximum probability of obtaining effective data in combination with the cloud map.The re⁃search has provided normalization support for the project,and the relevant methods and project experience can provide reference for the general satellite remote sensing large-scale and wide-area data acquisition tasks.