Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (11): 1506-1517.doi: 10.11947/j.AGCS.2018.20170600

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Landmark Matching Method about Pointing to the Ground of Three-axis Stabilization Geostationary Remote Sensing Satellite

DING Lu1, TONG Xiaochong1, QIN Zhiyuan2, LAI Guangling1   

  1. 1. Institute of Surveying and Mapping, Strategic Support Force Information Engineering University, Zhengzhou 450001, China;
    2. Henan University of Urban Construction, Pingdingshan 467036, China
  • Received:2017-12-24 Revised:2018-03-30 Online:2018-11-20 Published:2018-11-29
  • Supported by:
    The National Natural Science Foundation of China(Nos. 41671409;41201392)

Abstract: Geostationary remote sensing satellite is relatively static to the earth.However,because of the influences suffered from inner factors and outer environment,an error of geometric would be happened to satellite's pointing to the ground,and it will cause a large position error on the ground,so that,an effective modification is needed.This paper proposed a set calculation method of pointing to the ground based on landmark matching,which centered on the problem of pointing to the ground when the three-axis stabilization geostationary remote sensing satellite was shooting the earth disk.This method mainly solved the following problems:the generator method of landmark data which was the datum reference,robust matching method between image and landmark,the calculation method of pointing to the ground based on error elimination,and so on.The experiment showed that,this set of method had superior accuracy and stability in solving the error of pointing to the ground of geostationary remote sensing image.This technique had been applied in the online processing of related satellite data in our country.

Key words: three-axis stabilization, geostationary, pointing to the ground, landmark matching, nominal grid

CLC Number: