多源卫星数据在轨智能融合技术

On the Development of On-board Fusion of Multi-source Satellite Data

多源卫星数据融合能够综合利用多时相、多角度、多谱段、主被动等感知手段,提升遥感信息获取的准确性和稳健性。传统的多源卫星数据融合采用"卫星采集数据下传+地面融合处理"的工作方式,信息感知以及后续决策制定的时效性低。近年来,我国航天事业蓬勃发展,遥感卫星数量不断增多,载荷类型不断丰富,空间信息网络通信能力不断提升,在轨数据处理能力不断加强。发展多源卫星数据在轨智能融合技术恰逢其时,这对提升我国全球范围快速感知响应能力具有重要意义。本文分析了发展多源卫星数据在轨智能融合技术的战略意义,总结了该领域国内外发展现状,分析了关键科学技术问题,并提出了未来发展建议。

Fusion of multi-source satellite data,including multi-temporal,multi-angle,multi-spectral,and active and passive sensing data,is an effective approach to improve the accuracy and robustness of remote sensing.The traditional implementation of fusion of multi-source satellite data includes on-board data acquisition,downlink transmission,and ground-based data fusion processing,which results in low efficiency of information perception and decision-making.In recent years,China’s space industry has been developed rapidly,with an increasing number of satellites,a variety of sensor types,enhanced capabilities of satellite communication network and on-board signal processing.It is worth developing the technology of on-board intelligent fusion of multi-source satellite data,which is of great significance to improve the global rapid perception and response capability of China.This article elaborates the strategic significance of the on-board intelligent fusion of multi-source satellite data,reviews the state-of-the-art development of this field,analyzes the key scientific and technological issues,and provides suggestions at plausible future research.