Design of a sound localization system based on SOPC

Author

Wang, Weiwei ; Wang, Xujun ; Gao, Tiande ; Guo, Shuxia

Author_Institution

Coll. of Marine, Northwestern Polytech. Univ., Xi´´an, China

fYear

2012

fDate

12-15 Aug. 2012

Firstpage

310

Lastpage

314

Abstract

According to the direction estimation problem encountered in radar, sonar and other acoustic fields, the paper introduces a design of a sound localization system based on SOPC. This system works on the FPGA platform of Altera Cyclone III family by building a SOPC system, which can take fully advantage of the flexible customization specifications of the SOPC and the powerful parallel signal processing capacities of FPGA Time Difference of Arrival (TDOA) algorithm is used to localize the source. The localization results are shown on the LabVIEW front panel. The test results show that the system has a high accuracy with the deviation of target direction less than 3°, and it is stable and real-time. So it will become more accessible to many engineers and as a result, more practical.

Keywords

acoustic signal processing; direction-of-arrival estimation; field programmable gate arrays; system-on-chip; time-of-arrival estimation; virtual instrumentation; Altera Cyclone III family; FPGA platform; FPGA time difference of arrival algorithm; LabVIEW front panel; SOPC system; TDOA algorithm; acoustic fields; direction estimation problem; parallel signal processing; radar; sonar; sound localization system design; system-on-a-programmable chip; Arrays; Correlation; Delay effects; Digital signal processing; Field programmable gate arrays; Microphones; Real-time systems; FPGA; LabVIEW; SOPC; Sound Localization; TDOA;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communication and Computing (ICSPCC), 2012 IEEE International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4673-2192-1

Type

conf

DOI

10.1109/ICSPCC.2012.6335635

Filename

6335635