SDR processing delay estimation applying correlation detection for structure health monitoring using multi-subcarrier multiple access

Proceedings of the Seventh International Conference on the Internet of Things Pub Date : 2017-10-22 DOI:10.1145/3131542.3140273

Tatsuki Fujiwara, Yohei Nakano, J. Mitsugi, Yuusuke Kawakita, H. Ichikawa

{"title":"SDR processing delay estimation applying correlation detection for structure health monitoring using multi-subcarrier multiple access","authors":"Tatsuki Fujiwara, Yohei Nakano, J. Mitsugi, Yuusuke Kawakita, H. Ichikawa","doi":"10.1145/3131542.3140273","DOIUrl":null,"url":null,"abstract":"Wireless and battery-less structural health monitoring (SHM) that detect structural damage at low cost are required. To achieve this, the use of multi-subcarrier multiple access (MSMA) communication method is being considered. In MSMA, time synchronization of sensing data is shifted owing to software defined radio (SDR) processing. Therefore, when an SHM monitoring method requiring time synchronization of sensing data is used, time synchronization taking SDR processing delay into account is necessary. In this study, we propose a system that estimates SDR processing delay by correlation detection and acquires time synchronization of sensing data. We measured SDR delay estimation with time accuracy by installing this system on an experimental object. Results showed that the error of the allowable processing delay estimation was different, and time synchronization can be achieved by performing sensing once by the SDR processing delay estimation method using correlation detection.","PeriodicalId":166408,"journal":{"name":"Proceedings of the Seventh International Conference on the Internet of Things","volume":"45 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Seventh International Conference on the Internet of Things","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3131542.3140273","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 2

Abstract

Wireless and battery-less structural health monitoring (SHM) that detect structural damage at low cost are required. To achieve this, the use of multi-subcarrier multiple access (MSMA) communication method is being considered. In MSMA, time synchronization of sensing data is shifted owing to software defined radio (SDR) processing. Therefore, when an SHM monitoring method requiring time synchronization of sensing data is used, time synchronization taking SDR processing delay into account is necessary. In this study, we propose a system that estimates SDR processing delay by correlation detection and acquires time synchronization of sensing data. We measured SDR delay estimation with time accuracy by installing this system on an experimental object. Results showed that the error of the allowable processing delay estimation was different, and time synchronization can be achieved by performing sensing once by the SDR processing delay estimation method using correlation detection.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

多子载波多址结构健康监测中应用相关检测的SDR处理时延估计

需要无线和无电池结构健康监测(SHM)以低成本检测结构损伤。为了实现这一目标，人们正在考虑使用多子载波多址(MSMA)通信方法。在MSMA中，由于软件定义无线电(SDR)处理，传感数据的时间同步被转移。因此，当采用需要对传感数据进行时间同步的SHM监测方法时，需要考虑SDR处理延迟的时间同步。在本研究中，我们提出了一种通过相关检测估计SDR处理延迟并获得传感数据时间同步的系统。将该系统安装在实验对象上，测量了具有时间精度的SDR时延估计。结果表明，允许的处理时延估计误差不同，采用相关检测的SDR处理时延估计方法只需进行一次感知即可实现时间同步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Proceedings of the Seventh International Conference on the Internet of Things

自引率

0.00%

发文量