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DOA ESTIMATION WITH HISTOGRAM ANALYSIS OF SPATIALLY CONSTRAINED ACTIVE INTENSITY VECTORS

Symeon Delikaris-Manias; Despoina Pavlidi; Athanasios Mouchtaris; Ville Pulkki


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{
  "description": "<p>The active intensity vector (AIV) is a common descriptor of the sound field. In microphone array processing, AIV is commonly approximated with beamforming operations and uti- lized as a direction of arrival (DOA) estimator. However, in its original form, it provides inaccurate estimates in sound field conditions where coherent sound sources are simultane- ously active. In this work we utilize a higher order intensity- based DOA estimator on spatially-constrained regions (SCR) to overcome such limitations. We then apply 1-dimensional (1D) histogram processing on the noisy estimates for mul- tiple DOA estimation. The performance of the estimator is shown with a 7-channel microphone array, fitted on a rigid mobile-like device, in reverberant conditions and under dif- ferent signal-to-noise ratios.\u00a0</p>", 
  "license": "http://creativecommons.org/licenses/by/4.0/legalcode", 
  "creator": [
    {
      "affiliation": "Aalto University, Department of Signal Processing and Acoustics, Espoo, FI-00076, Finland", 
      "@type": "Person", 
      "name": "Symeon Delikaris-Manias"
    }, 
    {
      "affiliation": "FORTH-ICS, Heraklion, Crete, GR-70013, Greece", 
      "@type": "Person", 
      "name": "Despoina Pavlidi"
    }, 
    {
      "affiliation": "FORTH-ICS, Heraklion, Crete, GR-70013, Greece", 
      "@type": "Person", 
      "name": "Athanasios Mouchtaris"
    }, 
    {
      "affiliation": "Aalto University, Department of Signal Processing and Acoustics, Espoo, FI-00076, Finland", 
      "@type": "Person", 
      "name": "Ville Pulkki"
    }
  ], 
  "headline": "DOA ESTIMATION WITH HISTOGRAM ANALYSIS OF SPATIALLY CONSTRAINED ACTIVE INTENSITY VECTORS", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2017-03-09", 
  "url": "https://zenodo.org/record/836629", 
  "keywords": [
    "direction of arrival, higher order active intensity vector, multiple sound sources, microphone arrays"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.1109/ICASSP.2017.7952211", 
  "@id": "https://doi.org/10.1109/ICASSP.2017.7952211", 
  "@type": "ScholarlyArticle", 
  "name": "DOA ESTIMATION WITH HISTOGRAM ANALYSIS OF SPATIALLY CONSTRAINED ACTIVE INTENSITY VECTORS"
}
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