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- W2911446618 abstract "Cardioid sensors offer low sidelobes/backlobes compared to figure-8 bi-directional sensors (like velocity-sensors). Three cardioid sensors, in orthogonal orientation and in spatial collocation, have recently been proposed by Wong, Nnonyelu, and Wu [(2018). IEEE Trans. Sign. Process. 66(4), 895-906] and such a cardioid-triad's spatial matched filter beam-pattern has been analyzed therein. That beam-pattern, unfortunately, suffers pointing error, i.e., the spatial beam's actual peak direction deviates from the nominal look direction. Instead, this paper will propose a steerable data-independent beamformer for the above-mentioned cardioidic triad to avoid beam-pointing error. Also analytically derived here (via multivariate calculus) is this beam-pattern's lobes' height ratio, beamwidth, directivity, and array gain." @default.
- W2911446618 created "2019-02-21" @default.
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- W2911446618 date "2019-01-01" @default.
- W2911446618 modified "2023-10-18" @default.
- W2911446618 title "Cardioid microphones/hydrophones in a collocated and orthogonal triad—A steerable beamformer with no beam-pointing error" @default.
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- W2911446618 doi "https://doi.org/10.1121/1.5087697" @default.
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