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- W2930646918 abstract "Abstract Ground maneuvering target detection is a hot topic in the applications of synthetic aperture radar (SAR), whereas its focusing performance is severely deteriorated by range migration and Doppler frequency migration during a long integration time. This paper proposes a novel method to image the target and estimate its parameters via performing two independent 2-dimensional (2-D) searches after a parameter separation operation. In order to improve the search speed, we set the limited search ranges and propose local mapping sparse Fourier transform (LMSFT) to replace fast Fourier transform (FFT). Compared with the traditional algorithms, the proposed method can realize fast coherent integration of multiple maneuvering targets via compensating the high-order range migration and Doppler frequency migration. In addition, the proposed method is stable under noise. Several simulation results have validated the effectiveness of the proposed method." @default.
- W2930646918 created "2019-04-11" @default.
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- W2930646918 date "2019-06-01" @default.
- W2930646918 modified "2023-10-17" @default.
- W2930646918 title "Fast implementation of ground maneuvering target focusing" @default.
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- W2930646918 doi "https://doi.org/10.1016/j.dsp.2019.03.014" @default.
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