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- W2355656685 abstract "In order to compensate the range and azimuth shift variations of the echo model in geosynchronous synthetic aperture radar( GEO SAR) imaging,an algorithm based on improved range-doppler and azimuth chirp scaling( RD-ACS)is proposed in the paper. First,the slant range model with 4-order Taylor expansion is introduced to solve the curved trajectory problem in GEO SAR imaging. Then,the conventional range-doppler algorithm( RDA) is improved to compensate the range shift variation. And,an additional azimuth chirp scaling( ACS) is designed to compensate the azimuth shift variation according to a new azimuth-variant model. The 2-dimensional( range and azimuth) focusing scope in GEO SAR imaging is enlarged obviously. The validity of the new algorithm is validated by the simulations with the space borne radar advance simulator( SBRAS)." @default.
- W2355656685 created "2016-06-24" @default.
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- W2355656685 date "2014-01-01" @default.
- W2355656685 modified "2023-09-23" @default.
- W2355656685 title "A New Algorithm for Azimuth-Variant GEO SAR Imaging" @default.
- W2355656685 hasPublicationYear "2014" @default.
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