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

Time Delay Estimation
Frequency estimation
Multipath
Positioning
Frequency Domain
Frequency Estimation
Time delay
High Resolution
Estimation Algorithms
Module
Correlation methods
Correlators
Deconvolution
Delay Estimation
Error analysis
Correlator
Delay Time
Estimation Error
Preprocessing
Time Domain

All Science Journal Classification (ASJC) codes

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

Cite this

@article{2bc061329af644c2839b30178ac9ee3f,
title = "A high resolution time delay estimation technique in frequency domain for positioning system",
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.",
author = "Yangseok Jeong and Heungryeol Ryou and Chungyong Lee",
year = "2002",
month = "1",
day = "1",
language = "English",
volume = "56",
pages = "2318--2321",
journal = "IEEE Vehicular Technology Conference",
issn = "0740-0551",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "4",

}

A high resolution time delay estimation technique in frequency domain for positioning system. / Jeong, Yangseok; Ryou, Heungryeol; Lee, Chungyong.

In: IEEE Vehicular Technology Conference, Vol. 56, No. 4, 01.01.2002, p. 2318-2321.

Research output: Contribution to journalConference article

TY - JOUR

T1 - A high resolution time delay estimation technique in frequency domain for positioning system

AU - Jeong, Yangseok

AU - Ryou, Heungryeol

AU - Lee, Chungyong

PY - 2002/1/1

Y1 - 2002/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0036451185&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036451185&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0036451185

VL - 56

SP - 2318

EP - 2321

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

SN - 0740-0551

IS - 4

ER -