Research on the influence of the velocity-height ratio of the remote sensing camera on the image quality

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Fan Chao Research on the influence of the velocity-height ratio of the remote sensing camera on the image quality (Исследование влияния отношения скорость-высота камеры дистанционного зондирования на качество изображения) [на англ. яз.] // Оптический журнал. 2017. Т. 84. № 2. С. 45–51.

Fan Chao Research on the influence of the velocity-height ratio of the remote sensing camera on the image quality (Исследование влияния отношения скорость-высота камеры дистанционного зондирования на качество изображения) [in English] // Opticheskii Zhurnal. 2017. V. 84. № 2. P. 45–51.

For citation (Journal of Optical Technology):

Fan Chao, "Research on the influence of the velocity-height ratio of a remote sensing camera on image quality," Journal of Optical Technology. 84(2), 102-107 (2017). https://doi.org/10.1364/JOT.84.000102

Abstract:

The image angular velocity is changed by the variation of the velocity-height ratio (V/H) on the focal plane when the high-resolution satellite remote sensing TDICCD camera is working with some scrolling angle, which will deteriorate the image quality of the camera. Thus, the variation regularity of the V/H is researched. The function of the V/H which varies with the latitude and the scrolling angle is deduced firstly according to the geometrical relationship of the slant distance of the camera and the velocity variation regularity of the sub-astral point. Then, the influence of image shifts caused by the variation of V/H on the image quality is analyzed respectively based on the latitude and the scrolling angle. Finally, the regulation interval of the row integration time and the permitted range of the scroll angle are computed based on the given orbital parameters for different integration orders. The research results provide good reference to learn about the variation regularity of the image quality when the camera is working.

Keywords:

velocity-height ratio (V/H), remote sensing camera, image shifts, image quality

Acknowledgements:

This project is supported by the science and technology support project of the State Grain Administration (No.201413001), the State 863 Projects of China (No 2012AA101008), the China Scholarship Council (No. 201408410255) and the Natural Science Foundation of Henan Province.

OCIS codes: 110.3000

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