Motion Compensation for High Resolution Airborne SAR
Konferenz: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
03.06.2014 - 05.06.2014 in Berlin, Germany
Tagungsband: EUSAR 2014
Seiten: 4Sprache: EnglischTyp: PDF
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Autoren:
Liu, Zhe; Yu, Yongjiang (University of Electronic Science and Technology, China)
Huang, Huan (Civil Aviation Flight University, China)
Inhalt:
In this paper, we present a frequency-domain motion compensation technique that can compensate the platform's range- and azimuth-dependent motion error in the procedure of data focusing. By utilizing the non-uniform fast Fourier transform (NUFFT), both motion compensation and data focusing are effectively incorporated in the same processing step. To accommodate a wide image scene extension, the segmentation and recombination approaches are incorporated with the NUFFT. Experiment as well as simulation results with C-band aircraft SAR data validate the proposed motion compensation method.