A comparison between spatial interpolation approaches in a head-tracked active headrest system
A comparison between spatial interpolation approaches in a head-tracked active headrest system
The integration of head-tracking can improve the achievable performance of active noise control headrest systems by allowing the mismatch between the plant model used by the controller and the physical plant response to be reduced. Although previous studies have shown that the performance improvement achieved through head-tracking is limited by the resolution of the tracking system, this limitation can be addressed by either interpolating between plant models obtained at different head positions and then calculating the required controller, or interpolating between a set of pre-computed controllers optimised for different head positions. The differences in performance between the two approaches to interpolation, however, have not been explored, despite various interpolation strategies being previously utilised in head-tracked active control systems discussed in the literature. This paper presents a comparison between the two approaches to spatial interpolation for a head-tracked active headrest system. Assuming a tonal disturbance, it is shown through numerical simulations that the performance benefit brought by spatial interpolation differs between the two approaches to interpolation.
Lai, Chung Kwan
564519dc-b054-427f-9256-a454f796b1a9
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Lai, Chung Kwan
564519dc-b054-427f-9256-a454f796b1a9
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Lai, Chung Kwan and Cheer, Jordan
(2025)
A comparison between spatial interpolation approaches in a head-tracked active headrest system.
In Forum Acusticum Euronoise 2025.
8 pp
.
(In Press)
Record type:
Conference or Workshop Item
(Paper)
Abstract
The integration of head-tracking can improve the achievable performance of active noise control headrest systems by allowing the mismatch between the plant model used by the controller and the physical plant response to be reduced. Although previous studies have shown that the performance improvement achieved through head-tracking is limited by the resolution of the tracking system, this limitation can be addressed by either interpolating between plant models obtained at different head positions and then calculating the required controller, or interpolating between a set of pre-computed controllers optimised for different head positions. The differences in performance between the two approaches to interpolation, however, have not been explored, despite various interpolation strategies being previously utilised in head-tracked active control systems discussed in the literature. This paper presents a comparison between the two approaches to spatial interpolation for a head-tracked active headrest system. Assuming a tonal disturbance, it is shown through numerical simulations that the performance benefit brought by spatial interpolation differs between the two approaches to interpolation.
Text
Lai2025a_conferencePaper_a-comparison-between-spatial-interpolati
- Accepted Manuscript
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Accepted/In Press date: 23 June 2025
Venue - Dates:
11th Convention of the European Acoustics Association, , Malaga, Spain, 2025-06-23 - 2025-06-26
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Local EPrints ID: 501713
URI: http://eprints.soton.ac.uk/id/eprint/501713
PURE UUID: 087335c4-1fa6-41c1-9136-e3eea50d48cf
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Date deposited: 06 Jun 2025 16:53
Last modified: 22 Aug 2025 02:38
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Author:
Chung Kwan Lai
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