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SAR Motion Compensation Using GPS/IMU
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GPS/IMU를 이용한 SAR 영상의 요동 보상 기법에 대한 연구

논문 기본 정보

Type
Academic journal
Author
Dong-Hyun Kim (영남대학교) Sang-Hong Park (부경대학교) Kyung-Tae Kim (영남대학교)
Journal
Korea Electromagnetic Engineering Society The Journal of Korean Institute of Electromagnetic Engineering and Science Vol.22 No.1 KCI Accredited Journals
Published
2011.1
Pages
16 - 23 (8page)

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SAR Motion Compensation Using GPS/IMU
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Abstract· Keywords

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This paper suggests a motion compensation technique using GPS/IMU data in order to compensate for phase error caused by undesired motion of radar platform. An actual flight trajectory would be deviate from an ideal straightconstant trajectory with a constant velocity for SAR imaging, due to pitch, roll and yaw motion of aircraft caused by turbulence. This leads to blurred SAR images due to inter-pulse phase errors as well as along-track velocity errors. If the motion compensation is carried out to reduce those errors, SAR image quality can be significantly improved. Simulation results show that the motion compensation technique introduced in this paper is an effective tool to improve SAR image quality against severe motion of radar platform.
#SAR #GPS #IMU #PRF #Motion Compensation

Contents

요약
Abstract
Ⅰ. 서론
Ⅱ. 요동으로 인한 SAR 신호 위상의 영향
Ⅲ. 비행 궤적 시뮬레이션
Ⅳ. 요동 보상 수행 및 결과
Ⅴ. 결론
참고문헌

References (6)

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1. [단행본] - W. G. Carrara / 1995 / Spotlight Synthetic Aperture Radar-Signal Processing Algorithms / Artech House google schola 2. [학술지(정기간행물)] - M. T. Fennell / 1998 / Battlefield awareness via synergistic SAR and MTI exploitation / IEEE Aerospace and Electronic Systems Magazine 13 (2) : 39 ~ 45 google schola 3. [학술대회논문] - S. Buckreuss / 1994 / Motion compensation for airborne SAR based on inertial data, RDM and GPS / International Geoscience and Remote Sensing Symposium, IGARSS94 : 1971 ~ 1973 google schola 4. [학술지(정기간행물)] - Gianfranco Fornaro / 2005 / Motion compensation errors: Effects on the accuracy of airborne SAR images / IEEE Aerospace and Electronic Systems Magazine 41 (4) : 1338 ~ 1352 google schola 5. [학술대회논문] - M. Soumekh / 1994 / Digital spotlighting and coherent subaperture image formation for stripmap synthetic aperture radar / Proc. Int. Conf. Image Process. : 476 ~ 480 google schola

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