Advanced

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)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
in
Signal Processing
volume
91
issue
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
2016-10-13 05:10:46
@misc{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    = {ARRAY(0x6bc54d0)},
  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},
  volume       = {91},
  year         = {2011},
}