Naslov
Acoustic Localization based on FPGA

Autori
Aleksi, Ivan ; Hocenski, Željko ; Horvat, Petar

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
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, 2010, 90-92

ISBN
978-953-233-053-3

Skup
MIPRO 2010 33. internatilnal convention on information and communication technology, electronics and microelectronics

Mjesto i datum
Opatija, Hrvatska, 24.05.2010. - 28.05.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
FPGA; microphone; multi-channel sound signal detection; sound localization

Sažetak
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).

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

POVEZANOST RADA