Implementation of a cost efficient SSL based on an Angular beamformer SRP-PHAT

Author

Zarghi, Hamid R. ; Sharifkhani, Mohamad ; Gholampour, Iman

fYear

2011

fDate

11-14 Dec. 2011

Firstpage

49

Lastpage

52

Abstract

Among Sound Source Localization (SSL) methods, beamformed microphone arrays using Steering Response Power(SRP) has received significant attention. Yet, its application is stumbled by its computational complexity which cannot meet low-power/low-cost applications requirements. In this paper, Angular beamforming is presented. By applying this beamforming approach to the conventional SRP-PHAT one can find that the complexity of SRP-PHAT will decreased by two orders of magnitudes with a mere three fold reduction in resolution. The proposed method is implemented both on FPGA and 0.18um CMOS technology for a practical case.

Keywords

CMOS integrated circuits; acoustic signal processing; array signal processing; computational complexity; field programmable gate arrays; CMOS technology; FPGA; SSL; angular beamformer SRP-PHAT; beamformed microphone arrays; computational complexity; sound source localization; steering response power; Accuracy; Acoustics; Algorithm design and analysis; Array signal processing; Delay; Microphone arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems (ICECS), 2011 18th IEEE International Conference on

Conference_Location

Beirut

Print_ISBN

978-1-4577-1845-8

Electronic_ISBN

978-1-4577-1844-1

Type

conf

DOI

10.1109/ICECS.2011.6122211

Filename

6122211