A Low-Power MEMS Microphone Array for Wireless Acoustic Sensors

被引：0

作者：

Ottoy, Geoffrey ^{[1
]}

Thoen, Bart ^{[1
]}

De Strycker, Lieven ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Fac Engn Technol, DraMCo Res Grp, Gebroeders De Smetstr 1, B-9000 Ghent, Belgium

来源：

2016 IEEE SENSORS APPLICATIONS SYMPOSIUM (SAS 2016) PROCEEDINGS | 2016年

关键词：

HOME;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this article we present the design of a low-power MEMS microphone array for wireless sensors. The array is used as part of a device that performs acoustic Angle-Of-Arrival (AOA) measurements. The power consumption of this design is lower than that of comparable designs. Each of the 4 analog channels (each with a microphone and amplifier) can be turned on or off (standby) separately. The power consumption is 1.8mW per channel, and about 0.13 mu W in standby. For a single AOA detection cycle (array activation, audio sampling, AOA computation), the energy consumption is 6.02 mJ. When consecutive AOA detections are performed, the energy cost per detection converges to 3.20 mJ. The AOA accuracy corresponds with the expectations. With a mean error of 4 degrees, this is lower than that of comparable designs.

引用

页码：373 / 378

页数：6

共 24 条

[1]

[Anonymous], 2015, PIC16LF1554 20 PIN F

[2]

[Anonymous], INMP504 ULTR NOIS MI

[3]

[Anonymous], 2015, PIC12LF1552 8 PIN FL

[4]

[Anonymous], 2013, CMA 4544PF W EL COND

[5]

[Anonymous], 2014, INMP411 OMN MICR BOT

[6]

Badami K., 2015, 2015 IEEE International Solid-State Circuits Conference - (ISSCC) Digest of Technical Papers, P1

[7] On microphone-array beamforming from a MIMO acoustic signal processing perspective [J].

Benesty, Jacob ;

Chen, Jingdong ;

Huang, Yiteng ;

Dmochowski, Jacek .

IEEE TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 2007, 15 (03) :1053-1065

[8] An Intelligent Self-Adjusting Sensor for Smart Home Services based on ZigBee Communications [J].

Byun, Jinsung ;

Jeon, Boungju ;

Noh, Junyoung ;

Kim, Youngil ;

Park, Sehyun .

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, 2012, 58 (03) :794-802

[9]

Chakraborty J, 2014, 2014 UBIQUITOUS POSITIONING INDOOR NAVIGATION AND LOCATION BASED SERVICE (UPINLBS), P164, DOI 10.1109/UPINLBS.2014.7033724

[10]

Daoud MI, 2015, 2015 IEEE/ACIS 14TH INTERNATIONAL CONFERENCE ON COMPUTER AND INFORMATION SCIENCE (ICIS), P297, DOI 10.1109/ICIS.2015.7166609

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