A TDoA-based localization using precise time-synchronization

Jun Yong Yoon, Jae Wan Kim, Woo Yong Lee, Doo Seop Eom

Research output: Chapter in Book/Report/Conference proceedingConference contribution

41 Citations (Scopus)


Reliabilities for the technologies of position detection mean the measurement errors in the position detection. Presently, there are many different technologies used in position detection. But, as signal receiver operating in different locations are used to detect precise positions of objects located at long distances, it is hard to know when a object's or user's-terminal devices send a signal[1]. In this case, the technology using the ToA (Time of Arrival) is impossibly unreliable, and the TDoA (Time Difference of Arrival) technology is the more suitable[2]. If a TDoA-based electric surveillance system fails to achieve precise time-synchronization between devices for separation distance operation, it is impossible to obtain correct TDoA values from signals sent by signal receiver, and such a failure to obtaining the correct values directly affects location estimation error. In this respect, precise time-synchronization between signal receivers for separation distance operation is a core technology in detecting TDoA-based locations. In this paper the accuracy of the proposed and improved time-synchronization and measurement of error of TDoA-based location detection technology is evaluated, and, thus, TDoA-based location measurement error is greatly improved with the proposed method for time-synchronization error reduction.

Original languageEnglish
Title of host publication14th International Conference on Advanced Communication Technology
Subtitle of host publicationSmart Society Innovation through Mobile Internet, ICACT 2012
Number of pages6
Publication statusPublished - 2012
Event14th International Conference on Advanced Communication Technology, ICACT 2012 - PyeongChang, Korea, Republic of
Duration: 2012 Feb 192012 Feb 22

Publication series

NameInternational Conference on Advanced Communication Technology, ICACT
ISSN (Print)1738-9445


Other14th International Conference on Advanced Communication Technology, ICACT 2012
Country/TerritoryKorea, Republic of


  • GPS synchronization
  • Localization
  • TDoA
  • TPSN
  • Time stamping
  • Time-Synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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