Modulation techniques for parametric loudspeakers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00358720" target="_blank" >RIV/68407700:21230/22:00358720 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Modulation techniques for parametric loudspeakers
Original language description
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.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů