Výsledky VaV – VUT v Brně

Originální název

Device for Transmitting a Parametric Sound

Anglický název

Device for Transmitting a Parametric Sound

Jazyk

en

Originální abstrakt

This paper discusses the parametric transmission of sound through an amplitudemodulated ultrasonic wave, using automatic demodulation in a non-linear environment. Methods for the processing of the transmitted signal are presented; these techniques employ modified amplitude modulation to suppress the environmental effects, which otherwise distort the signal. Within our research, we fabricated a parametric speaker consisting of 50 ultrasonic acoustic transducers with the resonant frequency of 40 kHz. The functionality of the acoustic source was verified via measurement of the total harmonic distortion (THD).

Anglický abstrakt

This paper discusses the parametric transmission of sound through an amplitudemodulated ultrasonic wave, using automatic demodulation in a non-linear environment. Methods for the processing of the transmitted signal are presented; these techniques employ modified amplitude modulation to suppress the environmental effects, which otherwise distort the signal. Within our research, we fabricated a parametric speaker consisting of 50 ultrasonic acoustic transducers with the resonant frequency of 40 kHz. The functionality of the acoustic source was verified via measurement of the total harmonic distortion (THD).

BibTex


@inproceedings{BUT127665,
  author="David {Hladký} and Jan {Mikulka}",
  title="Device for Transmitting a Parametric Sound",
  annote="This paper discusses the parametric transmission of sound through an amplitudemodulated ultrasonic wave, using automatic demodulation in a non-linear environment. Methods for the processing of the transmitted signal are presented; these techniques employ modified amplitude modulation to suppress the environmental effects, which otherwise distort the signal. Within our research, we fabricated a parametric speaker consisting of 50 ultrasonic acoustic transducers with the resonant frequency of 40 kHz. The functionality of the acoustic source was verified via measurement of the total harmonic distortion (THD).",
  address="UTEE FEKT VUT v Brně",
  booktitle="International Interdisciplinary PhD Workshop 2016 Proceedings",
  chapter="127665",
  howpublished="electronic, physical medium",
  institution="UTEE FEKT VUT v Brně",
  year="2016",
  month="september",
  pages="135--139",
  publisher="UTEE FEKT VUT v Brně",
  type="conference paper"
}