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海量天体光谱数据分析与产品发布系统的研制与应用

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摘要 随着国内外大规模天文光谱巡天的出现,缺乏完善的海量天体光谱数据自动处理和数据发布系统成为制约基于海量天文光谱进行科研的瓶颈.中国科学院国家天文台针对此问题提出了完整的解决方案并基于大量的创新技术方法解决了天文数据所特有的复杂背景信号的建模与扣除、稀疏特征的压缩与提取、恒星物理参数的非线性回归、非结构化数据的快速索引等问题,并且成功地应用在我国自主研发的国家重大科技基础设施郭守敬望远镜(LAMOST),成功地处理和分析了数以千万计的天体光谱并精确地测量了这些天体的参数,对全世界公开发布了世界上最大的光谱库和天体参数表.这个系统的应用和所发布的数据不仅是我国在银河系研究走到世界前列的基础,同时也为大数据和人工智能方面的研究提供了标准的数据库.
出处 《中国科技成果》 2021年第3期39-41,共3页 China Science and Technology Achievements
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