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Calibration Errors of Uniform Linear Sensor Arrays for DOA Estimation: an Analysis with SRP-PHAT

Swartling, Mikael LU and Grbic, Nedelko LU (2011) In Signal Processing 91(4). p.1071-1075
Abstract
This article presents an analysis of the sensitivity of geometrical sensor errors in acoustic source localization using the well-established SRP-PHAT method. The array in this analysis is a uniform linear array and the intended source is human speech in the far field. Two major results are presented: inner-sensor geometrical errors in the linear array produce smaller localization errors than corresponding geometrical errors do in the two end-point sensors, and the localization error rises sharply for a total geometrical error exceeding the equivalence of the acoustic propagation distance of View the MathML source23 of the sample time instance (approximately 3 cm at 8 kHz). The article also provides a mathematical and graphical explanation... (More)
This article presents an analysis of the sensitivity of geometrical sensor errors in acoustic source localization using the well-established SRP-PHAT method. The array in this analysis is a uniform linear array and the intended source is human speech in the far field. Two major results are presented: inner-sensor geometrical errors in the linear array produce smaller localization errors than corresponding geometrical errors do in the two end-point sensors, and the localization error rises sharply for a total geometrical error exceeding the equivalence of the acoustic propagation distance of View the MathML source23 of the sample time instance (approximately 3 cm at 8 kHz). The article also provides a mathematical and graphical explanation of the results. (Less)
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author
and
publishing date
type
Contribution to journal
publication status
published
subject
in
Signal Processing
volume
91
issue
4
article number
4
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:78650888244
ISSN
0165-1684
DOI
10.1016/j.sigpro.2010.09.018
language
English
LU publication?
no
id
7d54cf87-a7d8-4c8e-abab-bba6dc2ea300
date added to LUP
2016-06-23 14:12:22
date last changed
2022-01-30 04:42:34
@article{7d54cf87-a7d8-4c8e-abab-bba6dc2ea300,
  abstract     = {{This article presents an analysis of the sensitivity of geometrical sensor errors in acoustic source localization using the well-established SRP-PHAT method. The array in this analysis is a uniform linear array and the intended source is human speech in the far field. Two major results are presented: inner-sensor geometrical errors in the linear array produce smaller localization errors than corresponding geometrical errors do in the two end-point sensors, and the localization error rises sharply for a total geometrical error exceeding the equivalence of the acoustic propagation distance of View the MathML source23 of the sample time instance (approximately 3 cm at 8 kHz). The article also provides a mathematical and graphical explanation of the results.}},
  author       = {{Swartling, Mikael and Grbic, Nedelko}},
  issn         = {{0165-1684}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{1071--1075}},
  publisher    = {{Elsevier}},
  series       = {{Signal Processing}},
  title        = {{Calibration Errors of Uniform Linear Sensor Arrays for DOA Estimation: an Analysis with SRP-PHAT}},
  url          = {{http://dx.doi.org/10.1016/j.sigpro.2010.09.018}},
  doi          = {{10.1016/j.sigpro.2010.09.018}},
  volume       = {{91}},
  year         = {{2011}},
}