Cost Effective Cots Microphone Array for Range Safety Applications

Abstract

In range safety and surveillance applications, it is helpful to have an array of sensitive, directional microphones. using beamforming and feature extraction, one can use such an array to locate, track, and identify a variety of targets. This paper describes how one can construct such an array from sub-arrays of small, inexpensive, commercial off-the-shelf microphones. Each sub-array consists of a few dozen electrets condenser microphones which are closely spaced. the analog signals from the microphones are summed, digitized, and then combined with signals from other sub-arrays using a field programmable gate array device. the digital signal is then passed to a general purpose computer for further analysis.

Department(s)

Electrical and Computer Engineering

International Standard Serial Number (ISSN)

0884-5123

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 International Foundation for Telemetering, All rights reserved.

Publication Date

01 Dec 2011

This document is currently not available here.

Share

 
COinS