@inproceedings{f68790cf04b9407f86697e65dc3d9393,
title = "Multiple-input multiple-output (MIMO) analog-to-feature converter chipsets for sub-wavelength acoustic source localization and bearing estimation",
abstract = "Localization of acoustic sources using miniature microphone arrays poses a significant challenge due to fundamental limitations imposed by the physics of sound propagation. With sub-wavelength distances between the microphones, resolving acute localization cues become difficult due to precision artifacts. In this work, we present the design of a miniature, microphone array sensor based on a patented Multiple-input Multiple-output (MIMO) analog-to-feature converter (AFC) chip-sets which overcomes the limitations due to precision artifacts. Measured results from fabricated prototypes demonstrate a bearing range of 0 degrees to 90 degrees with a resolution less than 2 degrees. The power dissipation of the MIMO-ADC chip-set for this task was measured to be less than 75 microwatts making it ideal for portable, battery powered sniper and gunshot detection applications.",
keywords = "Analog-to-feature conversion, Bearing estimation, MIMO systems, Source localization",
author = "Shantanu Chakrabartty",
year = "2010",
doi = "10.1117/12.852671",
language = "English",
isbn = "9780819481306",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IX",
note = "Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IX ; Conference date: 05-04-2010 Through 09-04-2010",
}