
Research on HJ-1A/B satellites data automatic geometric precision correction design
Xiong Wencheng、Shen Wenming、Wang Qiao、Shi Yuanli、Xiao Rulin、Fu Zhuo
Strategic Study of CAE ›› 2014, Vol. 16 ›› Issue (3) : 37-42.
Research on HJ-1A/B satellites data automatic geometric precision correction design
Xiong Wencheng、Shen Wenming、Wang Qiao、Shi Yuanli、Xiao Rulin、Fu Zhuo
HJ-1A/B satellites were developed independently by China,have operated well on-orbit for five years and acquired a large number of high-quality observation data. The realization of the observation data geometric precision correction is of great significance for macro and dynamic ecological environment monitoring. The paper analyzed the parameter characteristics of HJ-1satellite and geometric features of HJ-1satellite level2data(systematic geo-corrected data). Based on this,the overall HJ-1multi- sensor geometric correction flow and charge-coupled device(CCD)automatic geometric precision correction method were designed.Actual operating data showed that the method could achieve good result for automatic geometric precision correction of HJ-1satellite data,automatic HJ-1CCD image geometric precision correction accuracy could be achieved within two pixels and automatic matching accuracy between the images of same satellite could be obtained less than one pixel.
HJ-1satellite / automatic / geometric precision correction / CCD
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