A high resolution time delay estimation technique in frequency domain for positioning system

Yangseok Jeong, Heungryeol Ryou, Chungyong Lee

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

A high resolution time delay estimation technique for network based positioning systems is proposed. To overcome the resolution limitation of conventional correlation method, the proposed method uses high resolution frequency estimation algorithms with several preprocessing modules. To prevent deconvolved signal from diverging over some ranges of frequencies, Wiener deconvolution module is adopted. Also, to precisely separate multipaths closely delayed in time domain, a bandpass filtering module with a center frequency corresponding to coarsely acquired delay time from correlator is adopted. Through the computer simulation using MUSIC and ESPRIT as sinusoidal frequency estimation algorithms, we showed that the proposed method can separate two multipaths within one chip period and reduce delay estimation errors caused by multipaths.

Original languageEnglish
Pages (from-to)2318-2321
Number of pages4
JournalIEEE Vehicular Technology Conference
Volume56
Issue number4
Publication statusPublished - 2002 Jan 1
Event56th Vehicular Technology Conference - Vancouver, BC, Canada
Duration: 2002 Sep 242002 Sep 28

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this