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A Study of Positioning Using UWB Reflected Waves in a Non-Line-Of Sight (NLOS) Environment

Research Project

Project/Area Number 23560477
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Communication/Network engineering
Research InstitutionChukyo University

Principal Investigator

UEBAYASHI Shinji  中京大学, 工学部, 教授 (60555415)

Co-Investigator(Kenkyū-buntansha) SHIMIZU Masaru  中京大学, 工学部, 教授 (40235669)
FUJIWARA Takayuki  北海道情報大学, 情報メディア学部, 准教授 (90373068)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords位置推定 / TOA / TDOA / NLOS / UWB / 反射波 / 反射板
Research Abstract

A positioning method that utilizes UWB reflected waves is prposed. This method realizes accurate positioning with few base stations (BSs) (one BS at minimum). NLOS positioning is possible if more than three reflected waves can be received at the BS. The proposed method was verified by fundamental 2 dimensional experiments, and the estimation errors were evaluated theoretically and by computer simulation. TOA and TDOA schemes were adopted for the positioning.
The reflected waves from existing obstacles (walls, ceilings, racks, etc.) were considered first. The reflected waves from precisely designed reflectors were considered next. Accurate positioning is possible in almost all area with designed reflectos.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (8 results)

All 2013 2012 2011 Other

All Presentation (6 results) Remarks (2 results)

  • [Presentation] A Study of TDOA Positioning Using UWB Reflected Waves2013

    • Author(s)
      S.Uebayashi, M.Shimizu, T.Fujiwara
    • Organizer
      Proc. IEEE, VTC-2013 Fall
    • Place of Presentation
      Las Vegas
    • Related Report
      2013 Final Research Report
  • [Presentation] Study of TOA Positioning Using UWB Reflected Waves2012

    • Author(s)
      M.Shimizu, T.Fujiwara, S.Uebayashi
    • Organizer
      Proc. IEEE VTC-2012 Spring
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Final Research Report
  • [Presentation] Study of TOA Positioning using UWB Reflected Waves2012

    • Author(s)
      Masaru Shimizu, Takayuki Fujiwara, Shinji Uebayashi
    • Organizer
      IEEE VTS
    • Place of Presentation
      パシフィコ横浜
    • Related Report
      2011 Research-status Report
  • [Presentation] UWB信号の反射波を用いた位置推定法の実験による基礎的検証2011

    • Author(s)
      清水、藤原、上林
    • Organizer
      信学ソ大
    • Place of Presentation
      北大
    • Related Report
      2013 Final Research Report
  • [Presentation] UWB信号の反射波を用いたTOA位置推定法に関する一検討2011

    • Author(s)
      清水、藤原、上林
    • Organizer
      信学全大
    • Place of Presentation
      電通大
    • Related Report
      2013 Final Research Report
  • [Presentation] UWB信号の反射波を用いた位置推定法の実験による基礎的検討2011

    • Author(s)
      清水優,藤原孝幸,上林真司
    • Organizer
      電子情報通信学会
    • Place of Presentation
      北海道大学
    • Related Report
      2011 Research-status Report
  • [Remarks] ホームページ

    • URL

      http://www.sist.chukyo-u.ac.jp/faculty/uebayasi.html

    • Related Report
      2013 Final Research Report
  • [Remarks] 中部経済新聞、OPINION、"広がる位置検出技術の応用"、2014.4.30.

    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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