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- W2980455637 abstract "The combination of frequency modulation continuous wave (FMCW) technology and circular synthetic aperture radar (CSAR) would promote the development of micro-miniature unmanned aerial vehicle (UAV) earth observation applications. Regarding FMCW CSAR imaging, the stop-and-go approximation is no longer effective due to the longer pulse duration. A continuous motion signal model of FMCW CSAR is first established in this work. Then, the effects of the intra-pulse platform motion, including the range offset error, the main lobe broadening, and the additional phase error in the range domain are analyzed. A criterion used to determine whether the intra-pulse motion of FMCW CSAR can be ignored is derived. An improved back projection (BP) algorithm for FMCW CSAR imaging is proposed. Finally, the validity of the criterion and the effectiveness of intra-pulse motion correction are verified by numerical results of the traditional BP and the improved BP algorithms." @default.
- W2980455637 created "2019-10-25" @default.
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- W2980455637 date "2019-07-01" @default.
- W2980455637 modified "2023-09-26" @default.
- W2980455637 title "Intra-pulse Movement Analysis and Correction for FMCW CSAR" @default.
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- W2980455637 doi "https://doi.org/10.1109/siprocess.2019.8868391" @default.
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