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• W2519899344 abstract "Joint frequency and DOA estimation of more sources than the number of sensors is considered in this paper. We assume a simple uniform linear array (ULA) and propose to employ a multiple delay channel network at every sensor, which can easily be realized by sampling at a slightly higher rate. By combining the outputs of the ULA and the delay network, we show that the manifold matrix is analogous to that of a uniform rectangular array, and hence we appropriately refer to this array as the space-time array. Further, estimation of parameters via the rotational invariance technique (ESPRIT) based algorithm referred to as space-time (ST)-Euler-ESPRIT is proposed. ST-Euler-ESPRIT, similar to well known unitary-ESPRIT provides automatically paired frequencies and their DOAs. We further show that with the proposed approach for a M element ULA and with N−1 delay channel, O(MN) frequencies and their DOAs can be estimated. The performance of ST-Euler-ESPRIT is verified by simulations, where it shows consistently better performance than the unitary-ESPRIT algorithm under noisy conditions." @default.
• W2519899344 created "2016-09-23" @default.
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• W2519899344 date "2016-07-01" @default.
• W2519899344 modified "2023-09-22" @default.
• W2519899344 title "Joint frequency and direction of arrival estimation with space-time array" @default.
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• W2519899344 doi "https://doi.org/10.1109/sam.2016.7569645" @default.
• W2519899344 hasPublicationYear "2016" @default.
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