DoA reliability for distributed acoustic tracking
DoA reliability for distributed acoustic tracking
Distributed acoustic tracking estimates the trajectories of source positions using an acoustic sensor network. As it is often difficult to estimate the source-sensor range from individual nodes, the source positions have to be inferred from the direction-of-arrival (DoA) estimates. Due to reverberation and noise, the sound field becomes increasingly diffuse with increasing source-sensor distance, leading to a decreased Direction of Arrival (DoA)-estimation accuracy. To distinguish between accurate and uncertain DoA estimates, this letter proposes to incorporate the coherent-to-diffuse ratio as a measure of DoA reliability for single-source tracking. It is shown that the source positions, therefore, can be probabilistically triangulated by exploiting the spatial diversity of all nodes.
1320-1324
Evers, Christine
93090c84-e984-4cc3-9363-fbf3f3639c4b
Habets, Emanuel
531fee5c-633e-420d-a66c-837b2b4c1e47
Gannot, Sharon
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Naylor, Patrick
8c20a1a0-4507-4a0f-8324-f3075354dc52
September 2018
Evers, Christine
93090c84-e984-4cc3-9363-fbf3f3639c4b
Habets, Emanuel
531fee5c-633e-420d-a66c-837b2b4c1e47
Gannot, Sharon
c66353d3-e91c-4e9a-8b01-920bb617cd70
Naylor, Patrick
8c20a1a0-4507-4a0f-8324-f3075354dc52
Evers, Christine, Habets, Emanuel, Gannot, Sharon and Naylor, Patrick
(2018)
DoA reliability for distributed acoustic tracking.
IEEE Signal Processing Letters, 25 (9), .
(doi:10.1109/LSP.2018.2849579).
Abstract
Distributed acoustic tracking estimates the trajectories of source positions using an acoustic sensor network. As it is often difficult to estimate the source-sensor range from individual nodes, the source positions have to be inferred from the direction-of-arrival (DoA) estimates. Due to reverberation and noise, the sound field becomes increasingly diffuse with increasing source-sensor distance, leading to a decreased Direction of Arrival (DoA)-estimation accuracy. To distinguish between accurate and uncertain DoA estimates, this letter proposes to incorporate the coherent-to-diffuse ratio as a measure of DoA reliability for single-source tracking. It is shown that the source positions, therefore, can be probabilistically triangulated by exploiting the spatial diversity of all nodes.
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Accepted/In Press date: 1 April 2016
e-pub ahead of print date: 21 June 2018
Published date: September 2018
Identifiers
Local EPrints ID: 438590
URI: http://eprints.soton.ac.uk/id/eprint/438590
ISSN: 1070-9908
PURE UUID: 14094c6d-2bd8-40d7-8f14-77323c8d3ce7
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Date deposited: 18 Mar 2020 17:30
Last modified: 17 Mar 2024 04:01
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Contributors
Author:
Christine Evers
Author:
Emanuel Habets
Author:
Sharon Gannot
Author:
Patrick Naylor
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