Advances in Earth Science ›› 2011, Vol. 26 ›› Issue (9): 971-979. doi: 10.11867/j.issn.1001-8166.2011.09.0971

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Data Quality Evaluation of Chinese HJ CCD Sensor

Liu Rui 1,2, Sun Jiulin 2, Wang Juanle 2, Liao Xiuying 2   

  1. 1. College of Geographical Science, Chongqing Normal University, Chongqing 400047, China;
    2. State Key Laboratory of Resources and Environmental Information Systems, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2010-12-11 Revised:2011-07-31 Online:2011-09-10 Published:2011-09-10

Liu Rui, Sun Jiulin, Wang Juanle, Liao Xiuying. Data Quality Evaluation of Chinese HJ CCD Sensor[J]. Advances in Earth Science, 2011, 26(9): 971-979.

The Chinese environmental mitigation HJ satellite CCD sensors are capable of large area and all-time monitoring, and have a great advantage in coverage and frequency of repeated observations. However, as a relative newly remote sensing sensor, it is essential to evaluate the data quality for further applications. Based on the introduction of HJ CCD sensor and combined with LandSat TM data, the geometry accuracy and radiance quality of HJ CCD data was quantitative evaluated in this paper. The results showed that: ①There is no deviation between the 4 bands of HJ CCD, and compared with TM, very small geometric distortion is detected (0.05%). However, there′s large geometric error in both X and Y direction. ②There  is no obvious difference in radiation range and signal to noise ratio between the two sensors, but the image sharpness of CCD data can only achieve about half of TM, which leads to application limitation for object recognition and feature extraction, etc. ③The CCD data is rich in amount of information, and standard false colour composition of band 4, 3, 2 is the best band combination choice. Meanwhile, the power spectral of CCD data guaranteed the abundant texture feature, which will ensure the application accuracy in studies such as classification. ④Near infrared and red band showed the best quality between the CCD bands, and followed by green and blue band.

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