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The detection criterion is the degree of low-frequency periodicity in the acoustic signal, and the periodicity is computed from the \u201cbumpiness\u201d of the autocorrelation of a one-bit version of the signal. We then describe a CMOS ASIC that implements the periodicity estimation algorithm. The ASIC is fully functional and its core consumes 835 nanowatts. It was integrated into an acoustic enclosure and deployed in field tests with synthesized sounds and ground-based vehicles.<\/jats:p>","DOI":"10.1145\/1218556.1218562","type":"journal-article","created":{"date-parts":[[2007,4,5]],"date-time":"2007-04-05T19:20:08Z","timestamp":1175800808000},"page":"594-611","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":13,"title":["VLSI implementation of an energy-aware wake-up detector for an acoustic surveillance sensor network"],"prefix":"10.1145","volume":"2","author":[{"given":"David H.","family":"Goldberg","sequence":"first","affiliation":[{"name":"Johns Hopkins University, Baltimore, MD"}]},{"given":"Andreas G.","family":"Andreou","sequence":"additional","affiliation":[{"name":"Johns Hopkins University, Baltimore, MD"}]},{"given":"Pedro","family":"Juli\u00e1n","sequence":"additional","affiliation":[{"name":"Universidad Nacional del Sur, Bah\u00eda Blanca, CP, Argentina"}]},{"given":"Philippe O.","family":"Pouliquen","sequence":"additional","affiliation":[{"name":"Johns Hopkins University, Baltimore, MD"}]},{"given":"Laurence","family":"Riddle","sequence":"additional","affiliation":[{"name":"Signal Systems Corporation, Severna Park, MD"}]},{"given":"Rich","family":"Rosasco","sequence":"additional","affiliation":[{"name":"Signal Systems Corporation, Severna Park, MD"}]}],"member":"320","published-online":{"date-parts":[[2006,11]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1109\/TCSI.2005.852203","article-title":"An analog VLSI low-power envelope periodicity detector","volume":"52","author":"Abdalla H.","year":"2005","unstructured":"Abdalla , H. and Horiuchi , T. K. 2005 . An analog VLSI low-power envelope periodicity detector . IEEE Trans. Circuits Syst. 52 , 9 (Sept.), 1709--1720. Abdalla, H. and Horiuchi, T. K. 2005. An analog VLSI low-power envelope periodicity detector. IEEE Trans. Circuits Syst. 52, 9 (Sept.), 1709--1720.","journal-title":"IEEE Trans. Circuits Syst."},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.comnet.2004.06.007"},{"volume-title":"4th International Symposium on Information Processing in Sensor Networks (IPSN'05)","author":"Cao Q.","key":"e_1_2_1_3_1","unstructured":"Cao , Q. , Abdelzaher , T. , He , T. , and Stankovic , J . 2005. Towards optimal sleep scheduling in sensor networks for rare-event detection . In 4th International Symposium on Information Processing in Sensor Networks (IPSN'05) . IEEE Press, 20--27. Cao, Q., Abdelzaher, T., He, T., and Stankovic, J. 2005. Towards optimal sleep scheduling in sensor networks for rare-event detection. 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