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- W4225975972 abstract "The restricted physical antenna aperture usually degrades the acquisition of target images with high azimuth resolution in radar forward-looking sight. To make breakthrough on this problem, this article offers a forward-looking radar imaging methodology by the illumination beam design and virtual aperture processing, which can improve the azimuth resolution. First, the imaging model is established with respect to the observation scenario, and the echo characteristics of the forward-looking virtual array are analyzed. Second, compared with the back-projection (BP)-based algorithm, the polar format imaging (PFI) algorithm with higher efficiency is proposed to obtain the focused images of target in the forward-looking locations. Finally, comprehensive simulations and real measured experiments are performed to corroborate the effectiveness of the proposals and show the imaging performance with different influencing factors." @default.
- W4225975972 created "2022-05-05" @default.
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- W4225975972 date "2022-10-01" @default.
- W4225975972 modified "2023-10-12" @default.
- W4225975972 title "Azimuth Improved Radar Imaging With Virtual Array in the Forward-Looking Sight" @default.
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- W4225975972 doi "https://doi.org/10.1109/jiot.2022.3163163" @default.
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