Yang Lei, Fu Qiaoyan, Pan Zhiqiang, Zhang Xuewen, Han Qijin, Liu Li. Research of radiometric cross-calibration about GF-1 satellite sensors[J]. Infrared and Laser Engineering, 2015, 44(8): 2456-2460.
| Citation:
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Yang Lei, Fu Qiaoyan, Pan Zhiqiang, Zhang Xuewen, Han Qijin, Liu Li. Research of radiometric cross-calibration about GF-1 satellite sensors[J]. Infrared and Laser Engineering, 2015, 44(8): 2456-2460.
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Research of radiometric cross-calibration about GF-1 satellite sensors
- Received Date: 2014-12-20
- Rev Recd Date:
2015-01-22
- Publish Date:
2015-08-25
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Abstract
This paper is about the radiometric cross-calibration method of GF-1 image with landsat8-OLI data. First the cross-calibration was implemented using the night deep sea imaging to obtain the bias of GF-1 cross-calibration coefficient. Then eight times images of two sensors passing through the target place were selected to obtain the gains of the GF-1 cross-calibration coefficient. The correlation between the radiance value calculated by the cross-calibration coefficient and the synchronous observations of the Landsat8 radiance value is above 95%. The accuracy relative errors of the 4 bands are 4.25%, 6.21%, 5.83% and 5.66% respectively. The results show that the calibration coefficients obtained from the method have a similar precision as Landsat8-OLI. The calibration coefficients can satisfy the quantitative applications of GF-1 data.
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