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arXiv · 1612.00876

FRIDA: FRI-Based DOA Estimation for Arbitrary Array Layouts

Hanjie Pan·Robin Scheibler·Eric Bezzam·Ivan Dokmanic·Martin Vetterli
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Abstract

In this paper we present FRIDA---an algorithm for estimating directions of arrival of multiple wideband sound sources. FRIDA combines multi-band information coherently and achieves state-of-the-art resolution at extremely low signal-to-noise ratios. It works for arbitrary array layouts, but unlike the various steered response power and subspace methods, it does not require a grid search. FRIDA leverages recent advances in sampling signals with a finite rate of innovation. It is based on the insight that for any array layout, the entries of the spatial covariance matrix can be linearly transformed into a uniformly sampled sum of sinusoids.

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Hanjie Pan, Robin Scheibler, Eric Bezzam, Ivan Dokmanic, Martin Vetterli. 2016-12-02. FRIDA: FRI-Based DOA Estimation for Arbitrary Array Layouts. https://doi.org/10.1109/icassp.2017.7952744

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