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- W2097939097 abstract "Abstract. In array signal processing, direction of arrival (DOA) estimation has been studied for decades. Many algorithms have been proposed and their performance has been studied thoroughly. Yet, most of these works are focused on the asymptotic case of a large number of snapshots. In automotive radar applications like driver assistance systems, however, only a small number of snapshots of the radar sensor array or, in the worst case, a single snapshot is available for DOA estimation. In this paper, we investigate and compare different DOA estimators with respect to their single snapshot performance. The main focus is on the estimation accuracy and the angular resolution in multi-target scenarios including difficult situations like correlated targets and large target power differences. We will show that some algorithms lose their ability to resolve targets or do not work properly at all. Other sophisticated algorithms do not show a superior performance as expected. It turns out that the deterministic maximum likelihood estimator is a good choice under these hard conditions." @default.
- W2097939097 created "2016-06-24" @default.
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- W2097939097 date "2010-10-01" @default.
- W2097939097 modified "2023-10-03" @default.
- W2097939097 title "Single snapshot DOA estimation" @default.
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- W2097939097 doi "https://doi.org/10.5194/ars-8-251-2010" @default.
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