Title :
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
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;
Conference_Titel :
Signal Processing, Communication and Computing (ICSPCC), 2012 IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4673-2192-1
DOI :
10.1109/ICSPCC.2012.6335635
