The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2018
Filed:
Jun. 29, 2015
University of Seoul Industry Cooperation Foundation, Seoul, KR;
Republic of Korea (National Disaster Management Institute), Seoul, KR;
Hyung Sup Jung, Seoul, KR;
Dong Taek Lee, Gyeonggi-Do, KR;
Zhong Lu, Vancouver, WA (US);
Joong Sun Won, Gyeonggi-Do, KR;
Young Jin Park, Seoul, KR;
Jae Won Choi, Seoul, KR;
Shin Hoi Goo, Seou, KR;
Abstract
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.