Low power algorithm-architecture co-design of fast Independent Component Analysis (FICA) for multi-gas sensor applications

Chieh Chao Yang, Po-Tsang Huang, Chun Ying Huang, Ching Te Chuang, Wei Hwang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

For miniaturized multi-gas sensors, the detected multi-gas signals would be self-interfered by responses to multiple gases. In this paper, a fast Independent Component Analysis (FICA) is proposed to restore the original source signals from the mixed signals received by different gas sensors. This FICA is designed and implemented by low power algorithm-architecture co-design considering the tradeoffs among power, delay and accuracy of extracted signals for multi-gas sensor applications. To further reduce the power consumption, a data-length controller is designed to adjust the calculated data-length. Additionally, a stability check unit is utilized to terminate the ICA execution for reduction of the computation time and total energy. Compared with the conventional ICA design, the proposed low-power FICA realizes energy reduction by 75% for multi-gas sensor applications.

Original languageEnglish
Title of host publication2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479962754
DOIs
StatePublished - 28 May 2015
Event2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015 - Hsinchu, Taiwan
Duration: 27 Apr 201529 Apr 2015

Publication series

Name2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015

Conference

Conference2015 International Symposium on VLSI Design, Automation and Test, VLSI-DAT 2015
CountryTaiwan
CityHsinchu
Period27/04/1529/04/15

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