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遥感技术与应用  2008, Vol. 23 Issue (6): 712-716    DOI: 10.11873/j.issn.1004-0323.2008.6.712
图像处理     
风云三号微波湿度计遥感图像地理定位方法
关敏,谷松岩,杨忠东
(国家卫星气象中心,北京100081)
Geolocation Method for FY-3 MWHS&rsquo|Remote Sensing Image
GUAN Min,GU Song-yan,YANG Zhong-dong
(National Satellite Meteorological Center,Beijing 100081,China)
 全文: PDF(949 KB)  
摘要:

风云三号(FY-3)微波湿度计采用45°天线绕轴旋转形成垂直于卫星飞行轨迹的360°连续变速圆周扫描方式。依据这种扫描几何,给出了适用于风云三号微波湿度计遥感图像地理定位的方法,定义了完善的坐标系及坐标系转换关系,根据微波湿度计观测几何、卫星空间位置和姿态、仪器空间位置和指向建立了天线观测矢量与地面位置之间关系的模型。风云三号微波湿度计遥感图像地理定位方法在风云三号地面应用系统业务运行中,对微波湿度计遥感图像地理定位精度达到了像元级。

关键词: 微波湿度计观测几何建模遥感图像地理定位    
Abstract:

FY-3 MWHS scans the Earth's surface by mechanically rotating the antenna around X-axis.This research presents a geolocation method for FY-3 MWHS' remote sensing image based its scan geometry.It creates the spatial relationship model between the sensed data and the Earth based coordinate system,according to MWHS' sensing geometry and the sensor's attitude and position.This method is also including an algorithm of satellite orbit computation,which is used to get the satellite's instantaneous velocity vector from its position vectors.This method has been applied to FY-3 MWHS' remote sensing image geolocation.The geolocation result and error analysis use the land/water mask.Compared the geolocation results with the true remote sensing image,it shows that this method for MWHS' remote sensing image achieves pixel geolocation accuracy.

Key words: MWHS    Sensing geometry modeling    Geolocation
收稿日期: 2008-06-17 出版日期: 2011-11-07
:  TP 75  
作者简介: 作者简介:关敏(1978-),女,硕士,助理研究员,主要从事气象卫星遥感数据地理定位研究。 Email:guanmin@cma.gov.cn。
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引用本文:

关敏,谷松岩,杨忠东. 风云三号微波湿度计遥感图像地理定位方法[J]. 遥感技术与应用, 2008, 23(6): 712-716.

GUAN Min,GU Song-yan,YANG Zhong-dong. Geolocation Method for FY-3 MWHS&rsquo|Remote Sensing Image. Remote Sensing Technology and Application, 2008, 23(6): 712-716.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2008.6.712        http://www.rsta.ac.cn/CN/Y2008/V23/I6/712

[1] Rosborough G W,Baldwin D G,Emery W J.Precise AVHRR Image Navigation[J].IEEE Transactions on Geoscience and Remote Sensing,1994,32(3):644-657.
[2] Moreno J F,Melia J.A Method for Accurate Geometric Correction of NOAA AVHRR HRPT Data[J].IEEE Transactions on Geoscience and Remote Sensing,1993,31(1):204-226.
[3] Emery W,Ikeda M.AVHRR Image Navigation:Summary and Review[J].Canadian Journal of Remote Sensing,1989,10:46-56.
[4] Guan M,Yang Z D.Application of On-board GPS Data and High-precision Orbit Model to Polar Satellites Orbits Calculation[J].Journal of Applied Meteorological Science,2007,18(6):748-753.[关敏,杨忠东.星载GPS数据及高精度轨道模型在极轨卫星轨道计算中的应用[J].应用气象学报,2007,18(6):748-753.]
[5] Yang Z D,Guan M.Research on Precise Geolocation Model and Method Using Satellite Remote Sensing[J].Journal of Remote Sensing,2008,12(2):312-321.[杨忠东,关敏.风云卫星遥感数据高精度地理定位软件系统开发研究[J].遥感学报,2008,12(2):312-321.]
[6] JAXA.AMSR-E Data Users Handbook[S].2006.
[7] Liu L.Orbit Mechanics of Satellite[M].Beijing:Higher Education Press,1992.[刘林.人造地球卫星轨道力学[M].北京:
高等教育出版社,1992.]
[8] Liu J Y.Principles and Methods of GPS Navigation[M].Beijing:Science Press,2003.[刘基余.GPS卫星导航定位原理与方法[M].北京:科学出版社,2003.]
[9] Nishihama M,Wolfe R E,Solomon D ,etal.MODIS Level 1A Earth Location Algorithm Theoretical Basis Document Version 3.0[M].SDST-092,Lab.Terrestrial Phys.Greenbelt,MD:NASA Goddard Space Flight Center,1997.
[10] Robert E W,Masahiro N,Albert J F,et al.Achieving Subpixel Geolocation Accuracy in Support of MODIS Land Science[J].Remote Sensing of Environment,2002,83:31-49.
[11] Fleig A J,Hubanks P A ,Storey J C,et al.An Analysis of MODIS Earth Location Error[M].Version 2.0.Greenbelt,
MD:NASA Goddard Space Flight Center,1993.
[12] Sun B Y. Data Processing and Error Analysis Basis[M].Kaifeng:Henan University Press,1990.[孙炳耀.数据处理与误差分析基础[M].开封:河南大学出版社,1990.]

[1] 孙茂华,郑震藩,张升伟,蓝爱兰. 风云三号卫星微波湿度计数据处理与系统控制的冗余设计方案[J]. 遥感技术与应用, 2007, 22(2): 147-151.