High-resolution clean-sc

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Abstract

In this paper a high-resolution extension of CLEAN-SC is proposed: HR-CLEAN-SC. Where CLEAN-SC uses peak sources in “dirty maps” to define so-called source components, HR-CLEAN-SC takes advantage of the fact that source components can likewise be derived from points at some distance from the peak, as long as these “source markers” are on the main lobe of the Point Spread Function (PSF). This is very useful when sources are closely spaced together, such that their PSFs interfere. Then, alternative markers can be sought in which the relative influence by PSFs of other source positions is minimised. For those markers the source components better agree with the actual sources, which allows for better estimation of their locations and strengths. This paper outlines the theory needed to understand this approach and discusses applications to 2D and 3D microphone array simulations with closely spaced sources.
Original languageEnglish
Title of host publication6th Berlin Beamforming Conference
Subtitle of host publicationBerlin, Germany
Number of pages17
Publication statusPublished - 2016
Event6th Berlin Beamforming Conference - Humboldt-Universität, Erwin Schrödinger-Zentrum Adlershof, Berlin, Germany
Duration: 29 Feb 20161 Mar 2016
Conference number: 6
http://www.bebec.eu/

Conference

Conference6th Berlin Beamforming Conference
Abbreviated title6th BeBeC
CountryGermany
CityBerlin
Period29/02/161/03/16
Internet address

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