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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2001, Vol. 22 ›› Issue (2): 121-124.

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DGPS/SINS INTEGRATED SYSTEM USED IN SAR MOTION COMPENSATION

CAO Fu xiang1, BAO Zheng1, YUAN Jian ping2, ZHENG E2   

  1. 1. Key Laboratory for Radar Signal Processing, Xidian University, Xi′an 710071, China;2. College of Astronautics, Northwestern Polytechnical University, Xi′an 710072, China
  • Received:1999-12-27 Revised:2000-05-30 Online:2001-04-25 Published:2001-04-25

Abstract:

Nowadays higher resolution image from an airborne Synthetic Aperture Radar (SAR) is needed in both civil and military usage, so more accurate motion compensation should be applied to the radar returns to reduce image degradation caused by spurious motion of antenna phase center (APC). As Global Positioning System (GPS) became practical usage, the SARMCS using the information of GPS has received increasing attention.

Key words: differential GPS, strapdown INS, Kalman filter, synthetic aperture radar, motion compensation

CLC Number: