Modulation techniques for parametric loudspeakers

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modulation techniques for parametric loudspeakers

Popis výsledku v původním jazyce

Parametric array loudspeakers (PAL) transmit modulated sound waves in ultrasonic range. Due to nonlinear interaction, transmitted waves are then self-demodulated into higher frequency components and difference frequency components, which may be present in audible range. The concept was first proposed by P. J. Westervelt in 1962 [1] and then extended by H. O. Berktay’s far field solution in 1965 [2]. In original studies, Dual sideband amplitude modulation technique was used in experiments, however more eligible techniques have been developed in subsequent decades.

Název v anglickém jazyce

Modulation techniques for parametric loudspeakers

Popis výsledku anglicky

Parametric array loudspeakers (PAL) transmit modulated sound waves in ultrasonic range. Due to nonlinear interaction, transmitted waves are then self-demodulated into higher frequency components and difference frequency components, which may be present in audible range. The concept was first proposed by P. J. Westervelt in 1962 [1] and then extended by H. O. Berktay’s far field solution in 1965 [2]. In original studies, Dual sideband amplitude modulation technique was used in experiments, however more eligible techniques have been developed in subsequent decades.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů