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NO20035662D0 - Fremgangsmåte og system til å kalibrere trådlöse lokaliseringssystemer - Google Patents

Fremgangsmåte og system til å kalibrere trådlöse lokaliseringssystemer

Info

Publication number
NO20035662D0
NO20035662D0 NO20035662A NO20035662A NO20035662D0 NO 20035662 D0 NO20035662 D0 NO 20035662D0 NO 20035662 A NO20035662 A NO 20035662A NO 20035662 A NO20035662 A NO 20035662A NO 20035662 D0 NO20035662 D0 NO 20035662D0
Authority
NO
Norway
Prior art keywords
difference
location
wireless location
parameter
receivers
Prior art date
Application number
NO20035662A
Other languages
English (en)
Inventor
Brian Holt
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Publication of NO20035662D0 publication Critical patent/NO20035662D0/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-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
    • G01S5/0205Details
    • G01S5/021Calibration, monitoring or correction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-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
    • G01S5/0273Position-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 using multipath or indirect path propagation signals in position determination

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
NO20035662A 2001-06-25 2003-12-18 Fremgangsmåte og system til å kalibrere trådlöse lokaliseringssystemer NO20035662D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/891,107 US6522296B2 (en) 2001-06-25 2001-06-25 Method and system for calibrating wireless location systems
PCT/US2002/019329 WO2003001686A2 (en) 2001-06-25 2002-06-20 Method and system for calibrating location system

Publications (1)

Publication Number Publication Date
NO20035662D0 true NO20035662D0 (no) 2003-12-18

Family

ID=25397633

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20035662A NO20035662D0 (no) 2001-06-25 2003-12-18 Fremgangsmåte og system til å kalibrere trådlöse lokaliseringssystemer

Country Status (7)

Country Link
US (2) US6522296B2 (no)
EP (1) EP1407288B1 (no)
JP (1) JP2004531737A (no)
CN (1) CN100343689C (no)
CA (1) CA2450810C (no)
NO (1) NO20035662D0 (no)
WO (1) WO2003001686A2 (no)

Families Citing this family (129)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7193594B1 (en) * 1999-03-18 2007-03-20 Semiconductor Energy Laboratory Co., Ltd. Display device
GB0023366D0 (en) * 2000-09-23 2000-11-08 Koninkl Philips Electronics Nv Mobile radio terminal and related method and system
US6882309B2 (en) * 2001-07-18 2005-04-19 Fast Location. Net, Llc Method and system for processing positioning signals based on predetermined message data segment
US9052374B2 (en) 2001-07-18 2015-06-09 Fast Location.Net, Llc Method and system for processing positioning signals based on predetermined message data segment
US6845241B2 (en) * 2002-01-07 2005-01-18 International Business Machines Corporation Relevance assessment for location information received from multiple sources
WO2003069941A1 (en) * 2002-02-15 2003-08-21 Nokia Corporation Positioning in a telecommunications system
US7295808B2 (en) * 2002-09-05 2007-11-13 Soliman Samir S Method of and system for calibrating a repeater
US6873910B2 (en) * 2002-10-22 2005-03-29 Qualcomm Incorporated Procedure for searching for position determination signals using a plurality of search modes
EP1556713B1 (de) * 2002-10-28 2006-08-23 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Verfahren zur kontinuierlichen echtzeitverfolgung der position von wenigstens einem mobilen objekt sowie zugehörige sender und empfänger
US7072612B2 (en) * 2003-03-03 2006-07-04 Qualcomm Incorporated Repeater identification in position determination system
GB0304861D0 (en) * 2003-03-04 2003-04-09 Koninkl Philips Electronics Nv Object location
EP1620748A1 (en) * 2003-04-22 2006-02-01 Koninklijke Philips Electronics N.V. Object position estimation system, apparatus and method
US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
US7315275B2 (en) * 2003-07-03 2008-01-01 Navcom Technology, Inc. Positioning system with intentional multi-path signal
US7031727B2 (en) * 2003-10-14 2006-04-18 Baskin Brian L Method of location using signals of unknown origin
US7272495B2 (en) * 2004-04-01 2007-09-18 Itt Manufacturing Enterprises, Inc. System and method for inverse multilateration
US6876325B1 (en) 2004-04-01 2005-04-05 Itt Manufacturing Enterprises, Inc. System and method for location-finding using communication signals
US7187327B2 (en) * 2004-04-01 2007-03-06 Itt Manufacturing Enterprises, Inc. Method and system for determining the position of an object
US7099676B2 (en) * 2004-04-09 2006-08-29 Sony Corporation System and method for location and motion detection in a home wireless network
US7564402B2 (en) * 2004-07-26 2009-07-21 Drexel University Information gathering using reflected satellite signals
US7098915B2 (en) * 2004-09-27 2006-08-29 Harris Corporation System and method for determining line-of-sight volume for a specified point
US8279119B2 (en) 2005-01-19 2012-10-02 The Charles Stark Draper Laboratory, Inc. Systems and methods for transparency mapping using multipath signals
US7973716B2 (en) 2005-01-19 2011-07-05 The Charles Stark Draper Laboratory, Inc. Systems and methods for transparency mapping using multipath signals
EP1856550A1 (en) 2005-01-19 2007-11-21 The Charles Stark Draper Laboratory, Inc. Systems and methods for positioning using multipath signals
US7212204B2 (en) * 2005-01-27 2007-05-01 Silicon Graphics, Inc. System and method for graphics culling
US7545272B2 (en) 2005-02-08 2009-06-09 Therasense, Inc. RF tag on test strips, test strip vials and boxes
US8370054B2 (en) * 2005-03-24 2013-02-05 Google Inc. User location driven identification of service vehicles
US20060221918A1 (en) * 2005-04-01 2006-10-05 Hitachi, Ltd. System, method and computer program product for providing content to a remote device
US7636061B1 (en) 2005-04-21 2009-12-22 Alan Thomas Method and apparatus for location determination of people or objects
US7569791B2 (en) * 2005-09-30 2009-08-04 Energetiq Technology, Inc. Inductively-driven plasma light source
US7551138B2 (en) * 2005-12-22 2009-06-23 L3 Communications Integrated Systems, L.P. Method and apparatus for signal tracking utilizing universal algorithm
US7456788B2 (en) * 2005-12-22 2008-11-25 L-3 Communications Integrated Systems L.P. Method and apparatus for reducing geolocation ambiguity in signal tracking
US7535420B2 (en) * 2005-12-22 2009-05-19 L-3 Communications Integrated Systems L.P. Method and apparatus for signal tracking utilizing universal algorithm
JP4296302B2 (ja) * 2006-04-04 2009-07-15 測位衛星技術株式会社 位置情報提供システムおよび携帯電話機
US7570212B2 (en) * 2006-04-07 2009-08-04 The Boeing Company Reference beacon methods and apparatus for TDOA/FDOA geolocation
US7411548B2 (en) * 2006-04-12 2008-08-12 The Boeing Company Reference beacon identification using transmission sequence characteristics
US7656348B2 (en) * 2006-05-19 2010-02-02 Qualcomm Incorporated System and/or method for determining sufficiency of pseudorange measurements
US8331888B2 (en) * 2006-05-31 2012-12-11 The Boeing Company Remote programmable reference
SG137726A1 (en) * 2006-06-06 2007-12-28 Sony Corp A method and apparatus for measuring distance between a target and a receiver in a ranging system
FR2914431B1 (fr) * 2007-03-27 2009-06-19 Thales Sa Procede de calibration d'un radar passif.
JP2008267973A (ja) * 2007-04-19 2008-11-06 Ntt Docomo Inc 測位システム、移動通信端末、測位方法、測位サーバ、測位用icチップ、及び測位プログラム
EP2017638B1 (en) * 2007-07-17 2014-07-16 Siemens Aktiengesellschaft System and method for estimating a location of a local device and a local device
EP2026090B1 (en) * 2007-07-30 2011-02-09 Core Logic, Inc. Position measurement
US8892112B2 (en) 2011-07-21 2014-11-18 At&T Mobility Ii Llc Selection of a radio access bearer resource based on radio access bearer resource historical information
EP2081050B1 (en) * 2008-01-18 2010-12-22 Mitsubishi Electric Information Technology Centre Europe B.V. Multiple object localisation with a network of receivers
CN102077613B (zh) * 2008-04-25 2013-11-06 爱立信电话股份有限公司 定位节点中用于提供地理区域数据的无线电指纹方法
WO2009157822A1 (en) * 2008-06-24 2009-12-30 Telefonaktiebolaget L M Ericsson (Publ) Method for providing geographical position related information in a wireless network
WO2010000036A1 (en) * 2008-07-04 2010-01-07 Commonwealth Scientific And Industrial Research Organisation Wireless localisation system
US8195118B2 (en) 2008-07-15 2012-06-05 Linear Signal, Inc. Apparatus, system, and method for integrated phase shifting and amplitude control of phased array signals
US20100033379A1 (en) * 2008-08-11 2010-02-11 Lommen Layne D Reference beacon identification using transmission sequence characteristics
US8063824B2 (en) * 2008-08-26 2011-11-22 Soneticom, Inc. Magnitude-squared coherence filtering in a time difference of arrival (TDOA) or group delay interferometric geolocation system
WO2010054689A1 (en) * 2008-11-12 2010-05-20 Nokia Corporation A method, apparatus, computer program and a computer readable storage medium
US8170088B2 (en) * 2008-11-19 2012-05-01 Harris Corporation Methods for determining a reference signal at any location along a transmission media
US20100123618A1 (en) * 2008-11-19 2010-05-20 Harris Corporation Closed loop phase control between distant points
US7969358B2 (en) 2008-11-19 2011-06-28 Harris Corporation Compensation of beamforming errors in a communications system having widely spaced antenna elements
US20100125347A1 (en) * 2008-11-19 2010-05-20 Harris Corporation Model-based system calibration for control systems
US7855681B2 (en) * 2008-11-19 2010-12-21 Harris Corporation Systems and methods for determining element phase center locations for an array of antenna elements
US7970365B2 (en) * 2008-11-19 2011-06-28 Harris Corporation Systems and methods for compensating for transmission phasing errors in a communications system using a receive signal
US20100124263A1 (en) * 2008-11-19 2010-05-20 Harris Corporation Systems for determining a reference signal at any location along a transmission media
US8326319B2 (en) 2009-01-23 2012-12-04 At&T Mobility Ii Llc Compensation of propagation delays of wireless signals
US7911385B2 (en) * 2009-02-27 2011-03-22 Harris Corporation RF transmitter geolocation system and related methods
US8154452B2 (en) * 2009-07-08 2012-04-10 Raytheon Company Method and apparatus for phased array antenna field recalibration
US8872719B2 (en) 2009-11-09 2014-10-28 Linear Signal, Inc. Apparatus, system, and method for integrated modular phased array tile configuration
US8922421B2 (en) * 2009-12-10 2014-12-30 Lockheed Martin Corporation Method and system for use of GPS disciplined oscillators for coherent timing reference in distributed radar systems
US9196157B2 (en) 2010-02-25 2015-11-24 AT&T Mobolity II LLC Transportation analytics employing timed fingerprint location information
US9053513B2 (en) 2010-02-25 2015-06-09 At&T Mobility Ii Llc Fraud analysis for a location aware transaction
US8224349B2 (en) 2010-02-25 2012-07-17 At&T Mobility Ii Llc Timed fingerprint locating in wireless networks
US9008684B2 (en) 2010-02-25 2015-04-14 At&T Mobility Ii Llc Sharing timed fingerprint location information
US8447328B2 (en) 2010-08-27 2013-05-21 At&T Mobility Ii Llc Location estimation of a mobile device in a UMTS network
CN102034357A (zh) * 2010-12-01 2011-04-27 北京握奇数据系统有限公司 车辆监测装置、违规车辆检测装置、系统和方法
US9009629B2 (en) 2010-12-01 2015-04-14 At&T Mobility Ii Llc Motion-based user interface feature subsets
US9060324B1 (en) 2011-03-01 2015-06-16 Sprint Communications Company L.P. Frequency selection for exchanging wireless communications
US9462497B2 (en) 2011-07-01 2016-10-04 At&T Mobility Ii Llc Subscriber data analysis and graphical rendering
US8897802B2 (en) 2011-07-21 2014-11-25 At&T Mobility Ii Llc Selection of a radio access technology resource based on radio access technology resource historical information
US9519043B2 (en) 2011-07-21 2016-12-13 At&T Mobility Ii Llc Estimating network based locating error in wireless networks
US8761799B2 (en) 2011-07-21 2014-06-24 At&T Mobility Ii Llc Location analytics employing timed fingerprint location information
KR102107252B1 (ko) * 2011-08-02 2020-05-29 넥스트나브, 엘엘씨 광역 포지셔닝 시스템(waps)에서의 셀 구조 및 전송 스킴
US8923134B2 (en) 2011-08-29 2014-12-30 At&T Mobility Ii Llc Prioritizing network failure tickets using mobile location data
US9037094B2 (en) 2011-10-17 2015-05-19 Golba Llc Method and system for high-throughput and low-power communication links in a distributed transceiver network
US8762048B2 (en) 2011-10-28 2014-06-24 At&T Mobility Ii Llc Automatic travel time and routing determinations in a wireless network
US8909247B2 (en) 2011-11-08 2014-12-09 At&T Mobility Ii Llc Location based sharing of a network access credential
CN102508200B (zh) * 2011-11-16 2013-09-18 东南大学 复数扩频信号的到达时间差测量方法
US8970432B2 (en) 2011-11-28 2015-03-03 At&T Mobility Ii Llc Femtocell calibration for timing based locating systems
US9026133B2 (en) 2011-11-28 2015-05-05 At&T Mobility Ii Llc Handset agent calibration for timing based locating systems
CN102608569B (zh) * 2012-03-29 2013-06-19 清华大学 基于双观测点的空间匹配无源定位方法
US8925104B2 (en) 2012-04-13 2014-12-30 At&T Mobility Ii Llc Event driven permissive sharing of information
WO2013166546A1 (en) * 2012-05-07 2013-11-14 Commonwealth Scientific And Industrial Research Organisation Wireless positioning
CN102692241B (zh) * 2012-06-11 2015-01-21 华中科技大学 一种无线定位系统的误差补偿方法
US9094929B2 (en) 2012-06-12 2015-07-28 At&T Mobility Ii Llc Event tagging for mobile networks
US9326263B2 (en) 2012-06-13 2016-04-26 At&T Mobility Ii Llc Site location determination using crowd sourced propagation delay and location data
US9046592B2 (en) 2012-06-13 2015-06-02 At&T Mobility Ii Llc Timed fingerprint locating at user equipment
US8938258B2 (en) 2012-06-14 2015-01-20 At&T Mobility Ii Llc Reference based location information for a wireless network
US8897805B2 (en) 2012-06-15 2014-11-25 At&T Intellectual Property I, L.P. Geographic redundancy determination for time based location information in a wireless radio network
US9408174B2 (en) 2012-06-19 2016-08-02 At&T Mobility Ii Llc Facilitation of timed fingerprint mobile device locating
US8892054B2 (en) 2012-07-17 2014-11-18 At&T Mobility Ii Llc Facilitation of delay error correction in timing-based location systems
US9351223B2 (en) 2012-07-25 2016-05-24 At&T Mobility Ii Llc Assignment of hierarchical cell structures employing geolocation techniques
US9197982B2 (en) 2012-08-08 2015-11-24 Golba Llc Method and system for distributed transceivers for distributed access points connectivity
IL227285A0 (en) * 2013-07-01 2013-12-31 Rami Goldreich Multipath interference reduction for geo-location based on time-of-arrival
CN103544376B (zh) * 2013-09-23 2017-03-01 国家无线电监测中心陕西监测站 短波固定监测站测向数据修正方法
US9179285B1 (en) 2014-05-19 2015-11-03 Disney Enterprises, Inc. Reflection-based location detection
US9692499B2 (en) * 2014-10-06 2017-06-27 Harris Corporation Terrestrial based air-to-ground communications system and related methods
CN104502886B (zh) * 2014-12-05 2018-12-21 何缓 基于空域参数标准信号源方式的信号检测设备校准方法
CA2968997C (en) * 2014-12-18 2023-03-07 Innerspace Technology Inc. Method and system for sensing interior spaces to auto-generate a navigational map
US9351111B1 (en) 2015-03-06 2016-05-24 At&T Mobility Ii Llc Access to mobile location related information
EP3281037A4 (en) * 2015-04-10 2018-12-12 Nokia Technologies Oy Method and apparatus for installing antenna devices and guiding installation
WO2017048196A1 (en) * 2015-09-16 2017-03-23 Trek Technology (S) Pte. Ltd. System to detect movement of a user
US10368059B2 (en) * 2015-10-02 2019-07-30 Atheer, Inc. Method and apparatus for individualized three dimensional display calibration
BR112018013201A2 (pt) * 2015-12-28 2018-12-11 Huawei Technologies Co., Ltd. método de posicionamento com base em uma diferença de tempo de chegada, equipamento de usuário, e dispositivo de rede
US11307296B2 (en) * 2016-02-08 2022-04-19 Denso Corporation Time-of-flight distance measuring device and method for detecting multipath error
US12044789B2 (en) 2016-04-22 2024-07-23 Azar Zandifar Systems and methods for occupancy detection using WiFi sensing technologies
US10705179B2 (en) 2016-04-22 2020-07-07 Tandemlaunch Device-free subject localization methods and systems using wireless signals
EP3252491A1 (en) * 2016-06-02 2017-12-06 Nokia Technologies Oy An apparatus and associated methods
FR3055502B1 (fr) * 2016-08-30 2019-12-20 Sigfox Procede et reseau d’acces pour l’estimation du mouvement d’un terminal d’interet par rapport audit reseau d’acces
US10484078B2 (en) 2017-07-11 2019-11-19 Movandi Corporation Reconfigurable and modular active repeater device
US10901065B2 (en) * 2017-10-11 2021-01-26 The Boeing Company Location determination of an emitter using frequency-of-arrival (FOA) measured from a single moving platform
US10516972B1 (en) 2018-06-01 2019-12-24 At&T Intellectual Property I, L.P. Employing an alternate identifier for subscription access to mobile location information
CN111277950B (zh) * 2020-01-19 2021-02-26 中国科学院上海微系统与信息技术研究所 一种基于到达时差和到达频差的定位方法、装置及设备
CN111308418B (zh) * 2020-03-10 2021-11-23 慧众行知科技(北京)有限公司 一种对高度未知的目标进行二维定位的稳健方法
CN111551896B (zh) * 2020-04-25 2021-01-26 中国人民解放军战略支援部队信息工程大学 抑制传感器位置速度先验误差的加权多维标度toa和foa多源协同定位方法
CN111948683B (zh) * 2020-07-20 2023-08-04 中铁大桥科学研究院有限公司 一种斜拉桥主梁空间线形的检测修正方法
US11483037B2 (en) * 2020-09-16 2022-10-25 Qualcomm Incorporated Configurable deflection measurement and reporting
CN112305498A (zh) * 2020-11-09 2021-02-02 成都信息工程大学 一种异构tdoa定位系统
RU205395U1 (ru) * 2020-12-22 2021-07-13 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") Стенд для калибровки сверхширокополосных систем позиционирования
CN113484824B (zh) * 2021-07-05 2023-09-12 北京信息科技大学 基于收发分离rfid定位系统的rss差三边定位方法
CN114089272B (zh) * 2021-11-19 2024-12-03 北京万集科技股份有限公司 一种定位模块的标定方法、装置、终端和存储介质
CN113872680B (zh) * 2021-12-03 2022-04-26 特金智能科技(上海)有限公司 Tdoa辅助rid信号接收的控制方法、装置、系统
WO2024148503A1 (en) * 2023-01-10 2024-07-18 Qualcomm Incorporated Differential doppler based rf sensing
US20250274202A1 (en) * 2024-02-27 2025-08-28 Cisco Technology, Inc. Calibrating primary and auxiliary multiple input multiple output radios
CN120334977B (zh) * 2025-04-27 2025-12-02 武汉大学 一种双星基实时精密单点定位系统联合定位方法及系统

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280294A (en) * 1983-11-25 1994-01-18 Itt Corporation Passive monopulse ranging to a non-cooperative emitter and non-emitting object
US4828382A (en) * 1986-04-18 1989-05-09 Sundstrand Data Control, Inc. Passive radio altimeter
US4799062A (en) 1987-04-27 1989-01-17 Axonn Corporation Radio position determination method and apparatus
US5412414A (en) * 1988-04-08 1995-05-02 Martin Marietta Corporation Self monitoring/calibrating phased array radar and an interchangeable, adjustable transmit/receive sub-assembly
FR2696553B1 (fr) * 1992-10-01 1994-11-25 Alcatel Espace Méthode de calibration d'antenne en champ proche pour antenne active.
US5469172A (en) * 1993-11-16 1995-11-21 Bf Goodrich Flightsystem, Inc. Calibration method and apparatus for receiving transponder reply signals
US5687196A (en) 1994-09-30 1997-11-11 Harris Corporation Range and bearing tracking system with multipath rejection
US5959580A (en) 1994-11-03 1999-09-28 Ksi Inc. Communications localization system
US5530449A (en) * 1994-11-18 1996-06-25 Hughes Electronics Phased array antenna management system and calibration method
US5550549A (en) 1995-02-28 1996-08-27 Harris Corporation Transponder system and method
GB2301725B (en) * 1995-05-31 2000-02-02 Gen Electric A reduced-power GPS-based system for tracking multiple objects from a central location
US5717406A (en) * 1995-06-07 1998-02-10 Sanconix Inc. Enhanced position calculation
GB9519087D0 (en) 1995-09-19 1995-11-22 Cursor Positioning Sys Ltd Navigation and tracking system
US6108555A (en) 1996-05-17 2000-08-22 Ksi, Inc. Enchanced time difference localization system
US5719584A (en) 1996-09-03 1998-02-17 Harris Corporation System and method for determining the geolocation of a transmitter
US6026304A (en) 1997-01-08 2000-02-15 U.S. Wireless Corporation Radio transmitter location finding for wireless communication network services and management
US5926133A (en) * 1997-07-21 1999-07-20 Denso Corporation Differentially corrected position location system and method for mobile communication networks
US6184829B1 (en) * 1999-01-08 2001-02-06 Trueposition, Inc. Calibration for wireless location system
US6121919A (en) * 1999-07-23 2000-09-19 Eaton-Vorad Technologies, L.L.C. Method and apparatus for range correction in a radar system

Also Published As

Publication number Publication date
JP2004531737A (ja) 2004-10-14
CA2450810A1 (en) 2003-01-03
EP1407288A4 (en) 2007-08-01
US20020196186A1 (en) 2002-12-26
US20030052821A1 (en) 2003-03-20
US6522296B2 (en) 2003-02-18
CN1529821A (zh) 2004-09-15
WO2003001686A3 (en) 2003-10-23
WO2003001686A2 (en) 2003-01-03
CA2450810C (en) 2008-12-16
CN100343689C (zh) 2007-10-17
US6795019B2 (en) 2004-09-21
EP1407288B1 (en) 2012-06-06
EP1407288A2 (en) 2004-04-14

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