Journal of Atmospheric and Environmental Optics ›› 2014, Vol. 9 ›› Issue (2): 149-158.

• 论文 • Previous Articles     Next Articles

Research of Satellite On-Orbit Geometric Calibration Method Based on Artificial Signs

SI Xiao-long1, ZHANG Li-ming1, FU Xing-ke2, ZHU Xiao-yong2, Li Xin1, DOU Xian-hui2, YANG Bao-yun1, WANG Ji-xiang1   

  1. (1 Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China;
    2, Satellite Surveying and Mapping Application Centre, National Administration of Surveying, Mapping and Geoinformation, Beijing 100039, China)
  • Received:2013-12-31 Revised:2014-01-03 Online:2014-03-28 Published:2014-03-20

Abstract:

The measurement accuracy of the remote sensing satellite image points is of great significance for on-orbit geometric calibration of the satellite. To improve the measurement accuracy of ZY-3 satellite image points, four kinds of removable artificial signs with high and low reflectivity are designed. By the on-orbit test validation and a variety of measurement methods of the image points, the cross vertical angles sign is able to meet the design requirements of the minimum size and the best pattern is validated. The sign has good optical properties, physicochemical characteristics, and strong adaptability to the wild environment. The on-orbit test result indicates that this kinds of sign can be applied to the measurement of the current high-resolution, three-line array camera image points, and available to the predetermined 0.15 pixel measurement accuracy requirement of ZY-3 satellite on-orbit geometric calibration.

Key words: ZY-3 satellite, image points measurement, cross vertical angles sign, geometric calibration

CLC Number: