Digital Signal Processing Approach in Air Coupled Ultrasound Time Domain Beamforming

• Autorzy: Herman K. , Gudra T. , Furmankiewicz J.

Identyfikatory

DOI

10.2478/aoa-2014-0005

• Języki publikacji: EN

Abstrakty

EN

The work presents the results of experimental study on the possibilities of determining the source of an ultrasonic signal in two-dimensional space (distance, horizontal angle). During the research the team used a self-constructed linear array of MEMS microphones. Knowledge in the field of sonar systems was utilized to analyse and design a location system based on a microphone array. Using the above mentioned transducers and broadband ultrasound sources allows a quantitative comparison of estimation of the location of an ultrasonic wave source with the use of broadband modulated signals (modelled on bats’ echolocation signals) to be performed. During the laboratory research the team used various signal processing algorithms, which made it possible to select an optimal processing strategy, where the sending signal is known.

Słowa kluczowe

EN

beamforming; air-coupled ultrasounds; DSP; digital signal processing; bat signals; direction of arrival

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2014
• Tom: Vol. 39, No. 1
• Strony: 37--50
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Herman K.

• Faculty of Electronics, Wroclaw University of Technology Wybrzeze Wyspianskiego 27, 50-320 Wroclaw, Poland

autor

Gudra T.

• Faculty of Electronics, Wroclaw University of Technology Wybrzeze Wyspianskiego 27, 50-320 Wroclaw, Poland

autor

Furmankiewicz J.

• Faculty of Behavioural Ecology, University of Wroclaw Pl. Uniwersytecki 1, 50-137 Wroclaw, Poland

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