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WO2010027249A3 - A method of time-of-arrival estimation for direct-path signal detection in an ultra-wide band localizer - Google Patents

A method of time-of-arrival estimation for direct-path signal detection in an ultra-wide band localizer Download PDF

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Publication number
WO2010027249A3
WO2010027249A3 PCT/MY2009/000131 MY2009000131W WO2010027249A3 WO 2010027249 A3 WO2010027249 A3 WO 2010027249A3 MY 2009000131 W MY2009000131 W MY 2009000131W WO 2010027249 A3 WO2010027249 A3 WO 2010027249A3
Authority
WO
WIPO (PCT)
Prior art keywords
path signal
direct
time
arrival
ultra
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MY2009/000131
Other languages
French (fr)
Other versions
WO2010027249A2 (en
Inventor
Saeed Rashid Adbelhaleem
Khatun Sabira
Ali Borhanuddin Mohd
Abdullah Mohd. Khazani
Mohamad Hafizal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mimos Bhd
Original Assignee
Mimos Bhd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mimos Bhd filed Critical Mimos Bhd
Publication of WO2010027249A2 publication Critical patent/WO2010027249A2/en
Publication of WO2010027249A3 publication Critical patent/WO2010027249A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0218—Multipath in signal reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

A method (100) of time-of-arrival estimation for direct-path signal detection in an ultra-wide band localizer using a maximum likelihood estimation algorithm to estimate an arrival time of a first-path signal (102), to compute a probability of direct-path signal false match (104) and to compute a probability of missed direct-path signal (106), wherein the method comprises steps of performing a search cycle with a value, N number of iterations to identify a phase match (108) of a direct-path signal; if the phase match of the direct-path signal is identified, an acquisition time is computed (114) and a mean acquisition time is computed (116), however if the phase match of the direct-path signal is not identified and the value, N has been exceeded, the probability of missed direct- path signal is re-computed (106) and performing the search cycle with the value, N number of iterations is repeated; and computing time-of-arrival (118) of the direct-path signal wherein time-of-arrival is a sum of the arrival time of the first-path signal and the mean acquisition time.
PCT/MY2009/000131 2008-09-02 2009-09-01 A method of time-of-arrival estimation for direct-path signal detection in an ultra-wide band localizer Ceased WO2010027249A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI20083366 2008-09-02
MYPI20083366 2008-09-02

Publications (2)

Publication Number Publication Date
WO2010027249A2 WO2010027249A2 (en) 2010-03-11
WO2010027249A3 true WO2010027249A3 (en) 2010-06-24

Family

ID=41797691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MY2009/000131 Ceased WO2010027249A2 (en) 2008-09-02 2009-09-01 A method of time-of-arrival estimation for direct-path signal detection in an ultra-wide band localizer

Country Status (1)

Country Link
WO (1) WO2010027249A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113412432A (en) * 2019-02-15 2021-09-17 三菱电机株式会社 Positioning device, positioning system, mobile terminal, and positioning method
CN113532437B (en) * 2021-07-15 2022-12-02 西安电子科技大学 Ultra-Wideband Locating Indoor Target Method Based on Multipath Utilization
CN116068488A (en) * 2023-02-14 2023-05-05 中煤科工集团重庆研究院有限公司 A method to improve the accuracy of UWB positioning data

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030054845A1 (en) * 2001-08-30 2003-03-20 Leonid Krasny Enhanced time of arrival estimation using reduced complexity optimal processing
US20080130794A1 (en) * 2006-12-04 2008-06-05 Chia-Chin Chong Method for optimum threshold selection of time-of-arrival estimators
US20080267304A1 (en) * 2007-04-27 2008-10-30 Chia-Chin Chong method and system for joint time-of-arrival and amplitude estimation based on a super-resolution technique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030054845A1 (en) * 2001-08-30 2003-03-20 Leonid Krasny Enhanced time of arrival estimation using reduced complexity optimal processing
US20080130794A1 (en) * 2006-12-04 2008-06-05 Chia-Chin Chong Method for optimum threshold selection of time-of-arrival estimators
US20080267304A1 (en) * 2007-04-27 2008-10-30 Chia-Chin Chong method and system for joint time-of-arrival and amplitude estimation based on a super-resolution technique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RASHID A. SAEED ET AL.: "Performance of Ultra-Wideband Time-of-Arrival Estimation Enhanced with Synchronization Scheme.", ECTI TRANSACTIONS ON ELECTRIC ENG., ELECTRONICS, AND COMMUNICATIONS., vol. 4, no. 1, February 2006 (2006-02-01), pages 78 - 84 *

Also Published As

Publication number Publication date
WO2010027249A2 (en) 2010-03-11

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