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• W2997657966 abstract "Emitted high frequency radio waves may be reflected, scattered or refracted by various phenomenon in the atmosphere. The intensity and propagation of the scattered radio wave depends on the properties of the individual scattering phenomenon and of the ambience. Depending on the radar frequency and the ionization intensity radio waves are partially reflected from altitudes of 50 km and above. These reflections are caused by electron density gradients and do not necessarily occur from the nominal pointing direction of the transmission radiation pattern. In several analyses the nominal beam pointing direction is assumed to be the scattering location, which is often not true. For the localization of radar echoes different techniques are known and typically called Angle of Arrival or Direction of Arrival. For this study we investigate three different methods to estimate the Angle of Arrival (AOA) of radar echoes. The first two methods base upon on interferometry, while the third is often referred as MUSIC and shows high potential for the investigated radar. We show results for synthetic, but realistic data as well as real radar data for the antenna array configuration of the radar." @default.
• W2997657966 created "2020-01-10" @default.
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• W2997657966 date "2019-07-01" @default.
• W2997657966 modified "2023-10-14" @default.
• W2997657966 title "Angle of Arrival study of atmospheric high frequency radar echoes" @default.
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• W2997657966 doi "https://doi.org/10.1109/iconspace.2019.8905934" @default.
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