A Study of High-Precision Time-Synchronization for TDoA-Based Location Estimation


KIPS Transactions on Computer and Communication Systems, Vol. 2, No. 1, pp. 7-14, Jan. 2013
10.3745/KTCCS.2013.2.1.7,   PDF Download:

Abstract

Presently, there are many different technologies used for position detection. However, as signal-receiving devices operating in different location must detect the precise position of objects located at long distances, it is essential to know the precise time at which an object`s or a user`s terminal device sends a signal. For this purpose, the existing time of arrival (ToA) technology is not sufficiently reliable, and the existing time difference of arrival (TDoA) technology is more suitable. If a TDoA-based electric surveillance system and other tracking devices fail to achieve precise time-synchronization between devices with separation distance operation, it is impossible to obtain correct TDoA values from the signals sent by the signal-receiving devices; this failure to obtain the correct values directly affects the location estimation error. For this reason, the technology for achieving precise time synchronization between signal-receiving devices in separation distance operation, among the technologies previously mentioned, is a core technology for detecting TDoA-based locations. In this paper, the accuracy of the proposed time synchronization and the measurement error in the TDoA- based location detection technology is evaluated. The TDoA-based location measurement error is significantly improved when using the proposed method for time-synchronization error reduction.


Statistics
Show / Hide Statistics

Statistics (Cumulative Counts from September 1st, 2017)
Multiple requests among the same browser session are counted as one view.
If you mouse over a chart, the values of data points will be shown.


Cite this article
[IEEE Style]
J. W. Kim and E. D. Seop, "A Study of High-Precision Time-Synchronization for TDoA-Based Location Estimation," KIPS Transactions on Computer and Communication Systems, vol. 2, no. 1, pp. 7-14, 2013. DOI: 10.3745/KTCCS.2013.2.1.7.

[ACM Style]
Jea Wan Kim and Eom Doo Seop. 2013. A Study of High-Precision Time-Synchronization for TDoA-Based Location Estimation. KIPS Transactions on Computer and Communication Systems, 2, 1, (2013), 7-14. DOI: 10.3745/KTCCS.2013.2.1.7.