Acoustic Localization based on FPGA (CROSBI ID 563097)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Aleksi, Ivan ; Hocenski, Željko ; Horvat, Petar
engleski
Acoustic Localization based on FPGA
Novel acoustic localization device based on FPGA is presented in this paper. It is based on a FPGA multi-channel signal processing module that is connected to a sound detector array. Sound detector is made by microphones and cascade analog amplifiers. Detector also includes Schmitt trigger that generates a true/false logic signal in correspondence to availability of sound waves in surrounding area. Each microphone was assigned predetermined sound wave direction detecting area. Finite state machine is implemented in FPGA in order to detect a direction of a sound wave. One drawback to this method is that the analog circuits should be set equally among channels. Discussion is done on how to equalize multi-channel analog components that are used for sound localization device. Applicability of such devices may be in tracking some sound-active object (animals, wounded peoples) in an environment with reduced visibility (fog, forest, muddy water).
FPGA; microphone; multi-channel sound signal detection; sound localization
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Podaci o prilogu
90-92.
2010.
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objavljeno
978-953-233-053-3
Podaci o matičnoj publikaciji
MIPRO 2010 - 33. međunarodni skup, CTS - Računala u tehničkim sustavima
Nikola Bogunović ; Petar Ribarić
Rijeka: Hrvatska udruga za informacijsku i komunikacijsku tehnologiju, elektroniku i mikroelektroniku - MIPRO
1847-3938
Podaci o skupu
MIPRO 2010
predavanje
24.05.2010-28.05.2010
Opatija, Hrvatska