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遥感技术与应用  2023, Vol. 38 Issue (4): 776-782    DOI: 10.11873/j.issn.1004-0323.2023.4.0776
宽波段多光谱数据立方专栏     
“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
魏松岩1(),孟祥强1,衣晓宾1,李峰1,2,3,钟兴1(),陈思1
1.长光卫星技术股份有限公司,吉林 长春 130000
2.中国科学院长春光学精密机械与物理研究所,吉林 长春 130033
3.中国科学院大学,北京 100049
Research on Data Acquisition Technology of Chinese High-resolution Broadband Multispectral Satellites in the “The Belt and Road Initiative” Region
Songyan WEI1(),Xiangqiang MENG1,Xiaobin YI1,Feng LI1,2,3,Xing ZHONG1(),Si CHEN1
1.Chang Guang Satellite Technology Company Limited,Changchun 130000,China
2.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China
3.University of Chinese Academy of Sciences,Beijing 100049,China
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摘要:

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。

关键词: 一带一路吉林一号数据获取大区域动态规划时相划分云量成像条带    
Abstract:

Rapid acquisition of large area data is an important research topic in the field of remote sensing satellite 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 paper summarizes the strategy, methods and experience of data acquisition in large areas of the project, and focuses 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 imaging strips with the maximum probability of obtaining effective data in combination with the cloud map. The research 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.

Key words: The Belt and Road Initiative    Jilin-1    Data acquisition    Large area dynamic programming    Phase division    Cloudage    Imaging strips
收稿日期: 2022-09-09 出版日期: 2023-09-11
ZTFLH:  TP79  
基金资助: 吉林省重点研发项目“多星联合大区域覆盖成像关键技术研究”(20210201015GX);国家重点研发计划“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”(2019YFE0127000)
通讯作者: 钟兴     E-mail: 15004303360@163.com;ciomper@163.com
作者简介: 魏松岩(1991-),女,吉林延吉人,工程师,主要从事卫星任务规划、需求统筹方面研究。E?mail:15004303360@163.com
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引用本文:

魏松岩,孟祥强,衣晓宾,李峰,钟兴,陈思. “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[J]. 遥感技术与应用, 2023, 38(4): 776-782.

Songyan WEI,Xiangqiang MENG,Xiaobin YI,Feng LI,Xing ZHONG,Si CHEN. Research on Data Acquisition Technology of Chinese High-resolution Broadband Multispectral Satellites in the “The Belt and Road Initiative” Region. Remote Sensing Technology and Application, 2023, 38(4): 776-782.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2023.4.0776        http://www.rsta.ac.cn/CN/Y2023/V38/I4/776

分辨率

B0~B6:5 m

B7~B12:10 m

B13~B19:20 m

短波、中波红外:100 m

长波红外:150 m

谱段

主要地物谱段:B0~B6

次要地物谱段:B7~B12

大气相关谱段:B13~B19

短波红外谱段:SW1~SW4

中波红外谱段:MW1

长波红外谱段:LW1

降交点

地方时

12:00 am
重访周期2~3 d(双星)
侧摆能力±45°
成像模式推扫、夜光、空间目标成像
幅宽110 km
表 1  吉林一号光谱01/02星参数
卫星

日数传时长

/s

日成像时长

/s

卫星幅宽

/km

日推扫面积

/万km2

光谱01/02星3300120011092.5
表2  吉林一号光谱01/02星日数据获取能力
图1  “一带一路”项目整体区域示意
图2  子区域划分示意
图3  云量数值对应颜色卡
图4  云图与区域底图显示
图5  数据获取流程
图6  基于云图创建成像条带
图7  第一期有效数据覆盖图
图8  第二期有效数据覆盖图

使用卫星:吉林一号光谱01/02星

有效数据:侧摆≤15°,云量要求≤20%,产品质量A+B,

PMS全谱段(20)

期数区域范围数据时相

有效覆盖面积

/万km2

有效覆盖比例
一期50° N以北2020.5.1~2021.6.27334.2690.59%
38°~50° N2020.3.1~2021.6.271 042.4895.53%
38° N以南2020.1.1~2021.5.311 929.3488.86%
整体2020.1.1~2021.6.273 306.0891.04%
二期50° N以北2021.6.28~2021.8.31270.2773.25%
38°~50° N2021.6.28~2022.3.311 063.7197.48%
38° N以南2021.6.1~2022.3.311 994.7191.87%
整体2021.6.1~2022.3.313 328.6991.66%
表3  “一带一路”数据获取情况
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