High resolution time-of-arrival detection for wireless positioning systems

Josep Vidal, Montse Nájar, René Játiva

Research output: Contribution to journalConference articlepeer-review

50 Scopus citations


It is well known that non-line-of-sight (NLOS) and multipath propagation biases time of arrival (TOA) and Time Difference of Arrival (TDOA) estimates thus reducing accuracy of positioning algorithms. In order to achieve timing error reduction, a high-resolution first arriving path detector from propagation channel estimates is derived based on the minimum variance (MV) estimates and normalized minimum variance (NMV) of the power delay profile. The objective of this paper is to determine the potentialities of this optimal detection scheme within the framework of a realistic wireless positioning system. To this end, the timing measurements obtained are fed to a Kalman tracker which finally determines the position with a high degree of accuracy.

Original languageEnglish
Pages (from-to)2283-2287
Number of pages5
JournalIEEE Vehicular Technology Conference
Issue number4
StatePublished - 2002
Externally publishedYes
Event56th Vehicular Technology Conference - Vancouver, BC, Canada
Duration: 24 Sep 200228 Sep 2002


  • High resolution timing estimation
  • Kalman tracking
  • Non line of sight
  • Wireless positioning systems


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