Pan, HanjieScheibler, RobinBezzam, Eric FrancisDokmanic, IvanVetterli, Martin2016-12-132016-12-132016-12-13201710.1109/ICASSP.2017.7952744https://infoscience.epfl.ch/handle/20.500.14299/131954WOS:000414286203070In 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.Direction of arrivalfinite rate of innovationsubspace methodsearch-freewideband sourcesLCAV-APDAtext::conference output::conference proceedings::conference paper