University of Seoul Industry Cooperation Foundation

Korea Meteorological Administration

Republic of Korea (national Disaster Management Institute)

Zhong Lu

Chang Wook Lee

Young Jin Park

Jae Won Choi

Hyung Sup Jung

Young Jean Choi

Shin Hoi Goo

Min Ji Cho

Joong Sun Won

Dong Taek Lee

An apparatus and method for correcting the ionospheric distortion of an SAR (Synthetic Aperture Radar) interferogram are disclosed herein. The apparatus includes a multiple aperture SAR interferometry (MAI) interferogram generation unit, a transformed MAI interferogram generation unit, an ionospheric distortion interferogram generation unit, and a corrected SAR interferogram acquisition unit. The multiple aperture SAR interferometry (MAI) interferogram generation unit generates a multiple aperture SAR interferometry (MAI) interferogram using an SAR interferogram. The transformed MAI interferogram generation unit generates a transformed MAI interferogram representative of the azimuth direction derivatives of ionospheric distortion phases using the phases of the MAI interferogram. The ionospheric distortion interferogram generation unit generates an ionospheric distortion interferogram using the transformed MAI interferogram. The corrected SAR interferogram acquisition unit acquires a corrected SAR interferogram by eliminating the generated ionospheric distortion interferogram from the SAR interferogram.

Method and apparatus for correcting ionic distortion of satellite radar interferogram

Provided are a method and a system for the correction of an optical satellite image, the method including: a first step in which a satellite image judgment unit inputs and receives a plurality of satellite images divided according to spectral information and judges whether or not some area is a missing satellite image; a second step in which when the satellite image judgment unit judges that the some areas is the missing satellite images, a first interpolation unit inputs and receives the plurality of satellite images and carries out one-dimensional interpolation for each satellite image; a third step in which a second interpolation unit carries out two-dimensional interpolation for each satellite image in which the one-dimensional interpolation is carried out; and a fourth step in which a satellite image composing unit composes a corrected satellite image by gathering each satellite image in which the two-dimensional interpolation is carried out.

Method and system for correction of optical satellite image

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Zhong Lu