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Title
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Low-cost One-bit MEMS microphone arrays for in-air acoustic imaging using FPGA's
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Author
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Abstract
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| Recent advancements in MEMS microphone integration have led to the production of low-cost digital MEMS microphones which are suitable for applications in the ultrasonic acoustic spectrum. Using these microphones instead of their analog counterparts can greatly simplify board- and system-design and reduce overall construction cost of an array built with these sensors. In this paper we will propose an architecture for using these low-cost one-bit MEMS microphones to construct a microphone array and demonstrate their applicability in beamforming-based acoustic imaging algorithms targeted at 3D sonar sensors. We developed a small prototype array do demonstrate that these microphones are well suited for array applications, and the proposed system architecture, developed around an FPGA-SOC, is shown to be ideally suited to interface with a large number of these microphones. |
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Language
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English
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Source (journal)
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Proceedings of IEEE Sensors. - Piscataway, NJ, 2002, currens
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Source (book)
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16th IEEE SENSORS CONFERENCE, OCT 29-NOV 01, 2017, Glasgow, SCOTLAND
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Publication
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New york
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Ieee
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2017
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ISBN
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978-1-5090-1012-7
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DOI
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10.1109/ICSENS.2017.8234087
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Volume/pages
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(2017)
, p. 633-635
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ISI
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000427677500219
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Full text (Publisher's DOI)
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Full text (open access)
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