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• W2912307509 abstract "For the direction-of-arrival (DOA) estimators based on sparse signal representation, the feasibility and precision are greatly restricted by the inherent limitation of the predefined spatial discrete grids. In this paper, based on the high aggregation characteristic of wideband linear frequency modulation signals, we derive the modified fractional domain sparse model (MFDSM) in DOA estimation and propose a novel off-grid DOA estimation method via alternating descent iteration (OGDEADI). The simulation results show that our proposed MFDSM-OGDEADI method has enhanced estimation accuracy and better angular resolution in terms of signal-to-noise ratio, angle difference, grid size, and angle bias, and it also has the advantage of being less sensitive to the grid size." @default.
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• W2912307509 date "2019-01-01" @default.
• W2912307509 modified "2023-10-18" @default.
• W2912307509 title "Off-Grid DOA Estimation for Wideband LFM Signals in FRFT Domain Using the Sensor Arrays" @default.
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• W2912307509 doi "https://doi.org/10.1109/access.2019.2893452" @default.
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