In this work we present a novel driving technique for thermoacoustic (TA) loudspeakers. The proposed technique allows linearizing the pressure response of TA loudspeakers while reducing the average power dissipation on the device, and thus its working temperature. This is achieved exploiting an adaptive predistortion algorithm, implemented through digital signal processing. The controlled TA loudspeakers show exceptionally low values of total harmonic distortion and intermodulation distortion in their pressure response, exceeding the performance of previously proposed techniques, and a significantly reduced working temperature.

Linearization of thermoacoustic loudspeakers by adaptive predistortion / La Torraca, P.; Ricci, Y.; Bobinger, M.; Pavan, P.; Larcher, L.. - In: SENSORS AND ACTUATORS. A, PHYSICAL. - ISSN 0924-4247. - 297:(2019), pp. 111551-111557. [10.1016/j.sna.2019.111551]

Linearization of thermoacoustic loudspeakers by adaptive predistortion

La Torraca P.;Ricci Y.;Pavan P.;Larcher L.
2019-01-01

Abstract

In this work we present a novel driving technique for thermoacoustic (TA) loudspeakers. The proposed technique allows linearizing the pressure response of TA loudspeakers while reducing the average power dissipation on the device, and thus its working temperature. This is achieved exploiting an adaptive predistortion algorithm, implemented through digital signal processing. The controlled TA loudspeakers show exceptionally low values of total harmonic distortion and intermodulation distortion in their pressure response, exceeding the performance of previously proposed techniques, and a significantly reduced working temperature.
1-ott-2019
297
111551
111557
Linearization of thermoacoustic loudspeakers by adaptive predistortion / La Torraca, P.; Ricci, Y.; Bobinger, M.; Pavan, P.; Larcher, L.. - In: SENSORS AND ACTUATORS. A, PHYSICAL. - ISSN 0924-4247. - 297:(2019), pp. 111551-111557. [10.1016/j.sna.2019.111551]
La Torraca, P.; Ricci, Y.; Bobinger, M.; Pavan, P.; Larcher, L.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1207265
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