A study on Structure Health Monitoring using Analog CDMA

Research Project

Project/Area Number	26540033
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Information network
Research Institution	The University of Tokyo
Principal Investigator	Suzuki Makoto 東京大学, 先端科学技術研究センター, 助教 (20615257)
Project Period (FY)	2014-04-01 – 2016-03-31
Project Status	Completed (Fiscal Year 2015)
Budget Amount *help	¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000) Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords	センサネットワーク / 時刻同期 / アナログCDMA / センサノード / 構造モニタリング
Outline of Final Research Achievements	We studied on time synchronization, an important issue in wireless sensor networks, using a novel communication architecture called analog CDMA. By modulating analog waves using CDMA, a sink node can collect continuous analog sensor data from multiple points. According to our evaluation, the analog CDMA communication can achieve SNR of 20dB, which menas the communication architecture can be applied to acceleration sensors whose noise level is several 100 ug/sqrt(Hz).