MXPA04000461A - Metodo mejorado para estimar tdoa y fdoa en un sistema de localizacion inalambrica. - Google Patents

Metodo mejorado para estimar tdoa y fdoa en un sistema de localizacion inalambrica.

Info

Publication number
MXPA04000461A
MXPA04000461A MXPA04000461A MXPA04000461A MXPA04000461A MX PA04000461 A MXPA04000461 A MX PA04000461A MX PA04000461 A MXPA04000461 A MX PA04000461A MX PA04000461 A MXPA04000461 A MX PA04000461A MX PA04000461 A MXPA04000461 A MX PA04000461A
Authority
MX
Mexico
Prior art keywords
fdoa
cross
tdoa
signal
improved method
Prior art date
Application number
MXPA04000461A
Other languages
English (en)
Spanish (es)
Inventor
A Stilp Louis
Original Assignee
Trueposition Inc
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 Trueposition Inc filed Critical Trueposition Inc
Publication of MXPA04000461A publication Critical patent/MXPA04000461A/es

Links

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
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • 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
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/026—Means for monitoring or calibrating of associated receivers

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)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Radio Relay Systems (AREA)
MXPA04000461A 2001-07-18 2002-01-10 Metodo mejorado para estimar tdoa y fdoa en un sistema de localizacion inalambrica. MXPA04000461A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/908,998 US6876859B2 (en) 2001-07-18 2001-07-18 Method for estimating TDOA and FDOA in a wireless location system
PCT/US2002/000754 WO2003009613A1 (en) 2001-07-18 2002-01-10 Improved method for estimating tdoa and fdoa in a wireless location system

Publications (1)

Publication Number Publication Date
MXPA04000461A true MXPA04000461A (es) 2004-03-18

Family

ID=25426487

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA04000461A MXPA04000461A (es) 2001-07-18 2002-01-10 Metodo mejorado para estimar tdoa y fdoa en un sistema de localizacion inalambrica.

Country Status (13)

Country Link
US (1) US6876859B2 (enExample)
EP (1) EP1417847B1 (enExample)
JP (3) JP2004536533A (enExample)
KR (1) KR100881946B1 (enExample)
CN (1) CN100397911C (enExample)
AT (1) ATE546975T1 (enExample)
BR (1) BR0210360A (enExample)
CA (1) CA2454161C (enExample)
ES (1) ES2386669T3 (enExample)
GB (1) GB2395080B (enExample)
IL (2) IL159413A0 (enExample)
MX (1) MXPA04000461A (enExample)
WO (1) WO2003009613A1 (enExample)

Families Citing this family (208)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7415066B2 (en) * 1998-08-10 2008-08-19 Kamilo Feher Mis-matched modulation-demodulation format selectable filters
US7593481B2 (en) * 1998-08-31 2009-09-22 Kamilo Feher CDMA, W-CDMA, 3rd generation interoperable modem format selectable (MFS) systems with GMSK modulated systems
US7079584B2 (en) * 1998-08-10 2006-07-18 Kamilo Feher OFDM, CDMA, spread spectrum, TDMA, cross-correlated and filtered modulation
US8050345B1 (en) 1999-08-09 2011-11-01 Kamilo Feher QAM and GMSK systems
US6470055B1 (en) 1998-08-10 2002-10-22 Kamilo Feher Spectrally efficient FQPSK, FGMSK, and FQAM for enhanced performance CDMA, TDMA, GSM, OFDN, and other systems
US7548787B2 (en) * 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
US6757334B1 (en) * 1998-08-10 2004-06-29 Kamilo Feher Bit rate agile third-generation wireless CDMA, GSM, TDMA and OFDM system
CA2341883A1 (en) 1998-08-31 2000-03-09 Kamilo Feher Feher keying (fk) modulation and transceivers including clock shaping processors
US8203486B1 (en) 1999-03-05 2012-06-19 Omnipol A.S. Transmitter independent techniques to extend the performance of passive coherent location
US7667647B2 (en) 1999-03-05 2010-02-23 Era Systems Corporation Extension of aircraft tracking and positive identification from movement areas into non-movement areas
US8446321B2 (en) 1999-03-05 2013-05-21 Omnipol A.S. Deployable intelligence and tracking system for homeland security and search and rescue
US7739167B2 (en) 1999-03-05 2010-06-15 Era Systems Corporation Automated management of airport revenues
US7908077B2 (en) 2003-06-10 2011-03-15 Itt Manufacturing Enterprises, Inc. Land use compatibility planning software
US7782256B2 (en) 1999-03-05 2010-08-24 Era Systems Corporation Enhanced passive coherent location techniques to track and identify UAVs, UCAVs, MAVs, and other objects
US7612716B2 (en) 1999-03-05 2009-11-03 Era Systems Corporation Correlation of flight track data with other data sources
US7777675B2 (en) 1999-03-05 2010-08-17 Era Systems Corporation Deployable passive broadband aircraft tracking
US7889133B2 (en) 1999-03-05 2011-02-15 Itt Manufacturing Enterprises, Inc. Multilateration enhancements for noise and operations management
US7570214B2 (en) 1999-03-05 2009-08-04 Era Systems, Inc. Method and apparatus for ADS-B validation, active and passive multilateration, and elliptical surviellance
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
US9813270B2 (en) 1999-08-09 2017-11-07 Kamilo Feher Heart rate sensor and medical diagnostics wireless devices
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US7260369B2 (en) 2005-08-03 2007-08-21 Kamilo Feher Location finder, tracker, communication and remote control system
US7428510B2 (en) * 2000-02-25 2008-09-23 Telecommunication Systems, Inc. Prepaid short messaging
US7522911B2 (en) 2000-04-11 2009-04-21 Telecommunication Systems, Inc. Wireless chat automatic status tracking
US7110773B1 (en) * 2000-04-11 2006-09-19 Telecommunication Systems, Inc. Mobile activity status tracker
US7853272B2 (en) * 2001-12-21 2010-12-14 Telecommunication Systems, Inc. Wireless network tour guide
US6823284B2 (en) * 2002-04-30 2004-11-23 International Business Machines Corporation Geolocation subsystem
US20040029545A1 (en) * 2002-08-09 2004-02-12 Anderson Jon J. Method and system for leaving a communication channel in a wireless communications system
US7715850B2 (en) * 2002-10-22 2010-05-11 Qualcomm Incorporated Method and apparatus for identifying transmitters in a wireless communication system using power predictions
JP2004175052A (ja) * 2002-11-29 2004-06-24 Sony Corp インクジェット被記録媒体、インクジェット画像形成方法及び印画物
CN100536594C (zh) * 2002-12-02 2009-09-02 诺基亚公司 信号延迟的估计
DE50307643D1 (de) * 2003-02-07 2007-08-23 Siemens Ag Verfahren zur Positionsbestimmung eines Teilnehmers in einem Funkkommunikationssystem
CN100362365C (zh) * 2003-02-07 2008-01-16 西门子公司 无线通信系统中的用户定位方法
FR2857102B1 (fr) 2003-07-04 2007-06-15 Nortel Networks Ltd Procede de mesure de l'instant d'arrivee d'un signal radio recu, dispositif de mesure et dispositif de localisation d'une station mobile pour la mise en oeuvre du procede
AU2004265974B2 (en) * 2003-08-14 2007-08-02 Saab, Inc. Target localization using TDOA distributed antenna
GB0327041D0 (en) * 2003-11-21 2003-12-24 Roke Manor Research Apparatus and methods
GB0327794D0 (en) * 2003-11-29 2003-12-31 Koninkl Philips Electronics Nv Positioning method and apparatus
GB0328202D0 (en) 2003-12-05 2004-01-07 Westinghouse Brake & Signal Railway vehicle detection
US7627333B2 (en) * 2003-12-19 2009-12-01 Andrew Llc E-OTD augmentation to U-TDOA location system
US7440762B2 (en) * 2003-12-30 2008-10-21 Trueposition, Inc. TDOA/GPS hybrid wireless location system
GB0401767D0 (en) * 2004-01-27 2004-03-03 Koninkl Philips Electronics Nv Positioning systems
US7409189B2 (en) * 2004-03-30 2008-08-05 Intel Corporation Calibration and testing architecture for receivers
US7570696B2 (en) * 2004-06-25 2009-08-04 Intel Corporation Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback
US7292189B2 (en) * 2004-09-10 2007-11-06 Worcester Polytechnic Institute Methods and apparatus for high resolution positioning
US7359449B2 (en) * 2004-10-05 2008-04-15 Kamilo Feher Data communication for wired and wireless communication
US7421004B2 (en) * 2004-10-05 2008-09-02 Kamilo Feher Broadband, ultra wideband and ultra narrowband reconfigurable interoperable systems
US7453961B1 (en) 2005-01-11 2008-11-18 Itt Manufacturing Enterprises, Inc. Methods and apparatus for detection of signal timing
JP4736083B2 (ja) * 2005-02-21 2011-07-27 独立行政法人電子航法研究所 移動体の測位方法及びその測位装置
US20060217944A1 (en) * 2005-03-11 2006-09-28 Newfield Wireless, Inc. Methods for accurate use of finite dynamic range measurement data in radio path loss propagation model calibration
US7427952B2 (en) * 2005-04-08 2008-09-23 Trueposition, Inc. Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations
US7869810B2 (en) * 2005-04-25 2011-01-11 Agilent Technologies, Inc. Method and system for computing and displaying location information from cross-correlation data
EP1882374A4 (en) * 2005-05-17 2008-05-21 Andrew Corp METHOD AND DEVICE FOR DETERMINING COUPLED PATH LOSSES
JP4592506B2 (ja) * 2005-06-15 2010-12-01 株式会社東芝 アップリンク干渉源位置特定装置及びその方法
US7280810B2 (en) * 2005-08-03 2007-10-09 Kamilo Feher Multimode communication system
US10009956B1 (en) 2017-09-02 2018-06-26 Kamilo Feher OFDM, 3G and 4G cellular multimode systems and wireless mobile networks
US7283091B1 (en) 2005-08-08 2007-10-16 Trimble Navigation Limited Radio positioning system for providing position and time for assisting GPS signal acquisition in mobile unit
US7295156B2 (en) * 2005-08-08 2007-11-13 Trimble Navigation Limited Cellphone GPS positioning system
US20070066309A1 (en) * 2005-09-20 2007-03-22 Elizabeth Countryman Prepaid call management in intelligent network
US7489937B2 (en) * 2005-12-22 2009-02-10 L-3 Communications Integrated Systems, L.P. Method and apparatus for detecting emitter movement
US7593738B2 (en) * 2005-12-29 2009-09-22 Trueposition, Inc. GPS synchronization for wireless communications stations
US8150421B2 (en) * 2005-12-30 2012-04-03 Trueposition, Inc. User plane uplink time difference of arrival (U-TDOA)
US20090005061A1 (en) * 2005-12-30 2009-01-01 Trueposition, Inc. Location quality of service indicator
US20070155489A1 (en) * 2005-12-30 2007-07-05 Frederic Beckley Device and network enabled geo-fencing for area sensitive gaming enablement
US8588220B2 (en) * 2005-12-30 2013-11-19 L-3 Communications Corporation Method and apparatus for mitigating port swapping during signal tracking
US8768343B2 (en) * 2006-03-31 2014-07-01 Zebra Enterprise Solutions Corp Wireless local area network receiver and associated method
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
US9362976B2 (en) 2006-04-26 2016-06-07 Zih Corp. Wireless local area network system and receiver adapted for use thereof and associated method
US8892065B2 (en) * 2006-04-26 2014-11-18 Zebra Enterprise Solutions Corp. Method, apparatus, and computer program product for wireless signal storage with signal recognition detection triggering
US7965227B2 (en) 2006-05-08 2011-06-21 Era Systems, Inc. Aircraft tracking using low cost tagging as a discriminator
US8000701B2 (en) 2006-05-16 2011-08-16 Andrew, Llc Correlation mechanism to communicate in a dual-plane architecture
US8019339B2 (en) 2006-05-16 2011-09-13 Andrew Llc Using serving area identification in a mixed access network environment
US8000702B2 (en) * 2006-05-16 2011-08-16 Andrew, Llc Optimizing location services performance by combining user plane and control plane architectures
US8335196B2 (en) * 2006-09-19 2012-12-18 Qualcomm Incorporated Accommodating wideband and narrowband communication devices
US8103293B2 (en) 2006-10-17 2012-01-24 Itt Manufacturing Enterprises, Inc. System and related circuits and methods for detecting and locating wireless communication device use within a geographical area or facility
US7974235B2 (en) 2006-11-13 2011-07-05 Telecommunication Systems, Inc. Secure location session manager
EP2118810B1 (en) 2007-02-05 2012-08-15 Andrew Corporation System and method for optimizing location estimate of mobile unit
US7667640B2 (en) * 2007-04-13 2010-02-23 Glowlink Communications Technology, Inc. Determining a geolocation solution of an emitter on earth using satellite signals
US7663547B2 (en) * 2007-04-13 2010-02-16 Glowlink Communications Technology, Inc. Determining a geolocation solution of an emitter on earth based on weighted least-squares estimation
US8331953B2 (en) * 2007-05-01 2012-12-11 Andrew Llc System and method for estimating the location of a mobile device
US20080285505A1 (en) * 2007-05-15 2008-11-20 Andrew Corporation System and method for network timing recovery in communications networks
US7933610B2 (en) * 2007-05-21 2011-04-26 Andrew Llc Method and apparatus to select an optimum site and/or sector to provide geo-location data
US20100278335A1 (en) * 2007-11-02 2010-11-04 Per Enge Arrangements for Location-Based Security Systems and Methods Therefor
US8170585B2 (en) * 2007-11-14 2012-05-01 Andrew, Llc Ranging in UMTS networks
US8447319B2 (en) * 2007-11-15 2013-05-21 Andrew Llc System and method for locating UMTS user equipment using measurement reports
US7800530B2 (en) * 2007-12-07 2010-09-21 Andrew, Llc Method and system for providing assistance data for A-GPS location of handsets in wireless networks
US7667649B2 (en) * 2007-12-10 2010-02-23 Trueposition, Inc. Detection of time of arrival of CDMA signals in a wireless location system
US8213955B2 (en) 2008-05-01 2012-07-03 Andrew, Llc Network measurement report caching for location of mobile devices
US8098590B2 (en) * 2008-06-13 2012-01-17 Qualcomm Incorporated Apparatus and method for generating performance measurements in wireless networks
KR101495289B1 (ko) * 2008-07-03 2015-02-25 삼성전자주식회사 광대역 무선통신 시스템에서 주파수 오버레이 방식을 위한자원 할당 장치 및 방법
US20100033379A1 (en) * 2008-08-11 2010-02-11 Lommen Layne D Reference beacon identification using transmission sequence characteristics
US7924224B2 (en) 2008-08-15 2011-04-12 Trueposition, Inc. Variable coherence integration for the location of weak signals
US8136240B2 (en) * 2008-08-19 2012-03-20 International Business Machines Corporation Method of forming a substrate having a plurality of insulator layers
US8532747B2 (en) * 2008-08-22 2013-09-10 Devicor Medical Products, Inc. Biopsy marker delivery device
US8325661B2 (en) * 2008-08-28 2012-12-04 Qualcomm Incorporated Supporting multiple access technologies in a wireless environment
US9057606B2 (en) 2009-09-10 2015-06-16 Nextnav, Llc Wide area positioning system
WO2010030825A1 (en) 2008-09-10 2010-03-18 Commlabs. Inc. Wide area positioning system
US9035829B2 (en) 2008-09-10 2015-05-19 Nextnav, Llc Wide area positioning systems and methods
US9119165B2 (en) 2009-09-10 2015-08-25 Nextnav, Llc Coding in a wide area positioning system (WAPS)
US8954028B2 (en) 2008-09-25 2015-02-10 Telecommunication Systems, Inc. Geo-redundant and high reliability commercial mobile alert system (CMAS)
US8073463B2 (en) 2008-10-06 2011-12-06 Andrew, Llc System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel
US8762519B2 (en) * 2008-10-28 2014-06-24 Andrew Llc System and method for providing location services for multiple access networks from a single location server
US8125377B2 (en) * 2008-11-17 2012-02-28 Andrew Llc System and method for determining the location of a mobile device
US8035557B2 (en) * 2008-11-24 2011-10-11 Andrew, Llc System and method for server side detection of falsified satellite measurements
US7940213B2 (en) * 2008-11-24 2011-05-10 Andrew, Llc System and method for determining falsified satellite measurements
US7800533B2 (en) * 2008-11-24 2010-09-21 Andrew, Llc System and method for determining falsified geographic location of a mobile device
US8160609B2 (en) * 2008-11-26 2012-04-17 Andrew Llc System and method for multiple range estimation location
US8249622B2 (en) 2008-11-26 2012-08-21 Andrew, Llc System and method for multiple range estimation location
US8380222B2 (en) 2008-11-26 2013-02-19 Andrew Llc System and method for multiple range estimation location
US7956803B2 (en) 2008-12-01 2011-06-07 Andrew, Llc System and method for protecting against spoofed A-GNSS measurement data
US7916071B2 (en) * 2008-12-23 2011-03-29 Andrew, Llc System and method for determining a reference location of a mobile device
US8436768B2 (en) 2008-12-30 2013-05-07 Trueposition, Inc. Diversity time and frequency location receiver
US8138975B2 (en) * 2008-12-30 2012-03-20 Trueposition, Inc. Interference detection, characterization and location in a wireless communications or broadcast system
EP2404439B1 (en) * 2009-03-04 2019-04-24 Nokia Corporation Position monitoring for a coverage area
US7986266B2 (en) 2009-03-13 2011-07-26 Andrew, Llc Method and system for selecting optimal satellites in view
US8239483B2 (en) 2009-03-16 2012-08-07 Andrew, Llc System and method for generic application of location determination for network attached devices
US8301160B2 (en) * 2009-03-16 2012-10-30 Andrew Llc System and method for SUPL roaming using a held client
US20100234022A1 (en) * 2009-03-16 2010-09-16 Andrew Llc System and method for supl roaming in wimax networks
US8462769B2 (en) 2009-03-26 2013-06-11 Andrew Llc System and method for managing created location contexts in a location server
US8391884B2 (en) * 2009-03-26 2013-03-05 Andrew Llc System and method for managing created location contexts in a location server
US8467805B2 (en) * 2009-05-08 2013-06-18 Andrew Llc System and method for determining a reference location using cell table data mining
US8886115B2 (en) 2009-05-11 2014-11-11 Qualcomm Incorporated Gain control metric pruning in a wireless repeater
US8290510B2 (en) * 2009-06-11 2012-10-16 Andrew Llc System and method for SUPL held interworking
US8134493B2 (en) * 2009-07-02 2012-03-13 Raytheon Company System and method for precision geolocation utilizing multiple sensing modalities
IL200158A (en) 2009-07-30 2014-12-31 Verint Systems Ltd System and methods for locating communication terminals on cellular networks
WO2011016804A1 (en) 2009-08-05 2011-02-10 Andrew Llc System and method for hybrid location in an lte network
US8248997B2 (en) * 2009-08-17 2012-08-21 Nokia Corporation Apparatus and method for positioning a wireless user equipment
US9372266B2 (en) 2009-09-10 2016-06-21 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9291712B2 (en) 2009-09-10 2016-03-22 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US8340683B2 (en) * 2009-09-21 2012-12-25 Andrew, Llc System and method for a high throughput GSM location solution
KR101047927B1 (ko) 2009-09-23 2011-07-08 (주)에이알테크놀로지 도착 시간 차이 및 도착 주파수 차이를 추정하는 방법 및 장치
US8217832B2 (en) 2009-09-23 2012-07-10 Andrew, Llc Enhancing location accuracy using multiple satellite measurements based on environment
CN101699915B (zh) * 2009-10-13 2015-01-28 中兴通讯股份有限公司 一种主板、实现锁网/锁卡功能的方法及移动终端
US8289210B2 (en) * 2009-10-15 2012-10-16 Andrew Llc Location measurement acquisition adaptive optimization
US8188920B2 (en) * 2009-10-15 2012-05-29 Andrew, Llc Location measurement acquisition optimization with Monte Carlo simulation
US8233911B2 (en) * 2009-12-16 2012-07-31 Nokia Corporation Method and apparatus for estimating a position of a node in a communications network
US8442538B2 (en) 2009-12-29 2013-05-14 Trueposition, Inc. Cooperating receiver selection for UMTS wireless location
US8290496B2 (en) 2009-12-29 2012-10-16 Trueposition, Inc. Cooperating receiver selection for UMTS wireless location
US9331798B2 (en) * 2010-01-08 2016-05-03 Commscope Technologies Llc System and method for mobile location by proximity detection
US8538035B2 (en) 2010-04-29 2013-09-17 Audience, Inc. Multi-microphone robust noise suppression
US8473287B2 (en) 2010-04-19 2013-06-25 Audience, Inc. Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system
US8606571B1 (en) * 2010-04-19 2013-12-10 Audience, Inc. Spatial selectivity noise reduction tradeoff for multi-microphone systems
US8781137B1 (en) 2010-04-27 2014-07-15 Audience, Inc. Wind noise detection and suppression
US8718673B2 (en) 2010-05-21 2014-05-06 Maple Acquisition Llc System and method for location assurance of a mobile device
US8447596B2 (en) 2010-07-12 2013-05-21 Audience, Inc. Monaural noise suppression based on computational auditory scene analysis
CN101915928B (zh) * 2010-07-14 2013-10-30 中国电子科技集团公司第十研究所 双星时差/频差联合定位的方法及装置
US8958754B2 (en) 2010-09-29 2015-02-17 Andrew, Llc System and method for sub-coherent integration for geo-location using weak or intermittent signals
US9844079B1 (en) * 2010-10-27 2017-12-12 Keysight Technologies, Inc. Method and system of triggering signal analysis combining time and frequency domain trigger criteria
US8489122B2 (en) 2010-12-09 2013-07-16 Andrew Llc System and method for total flight time ratio pattern matching
CA2825289A1 (en) 2010-12-13 2012-06-21 Telecommunication Systems, Inc. Location services gateway server
US8384595B2 (en) 2010-12-16 2013-02-26 Trueposition, Inc. Position estimation through iterative inclusion of measurement data
US8526968B2 (en) 2011-02-14 2013-09-03 Andrew Llc System and method for mobile location by dynamic clustering
US9128173B1 (en) 2011-05-25 2015-09-08 Leidos, Inc. Machine and process for self localization using doppler
CN102455423B (zh) * 2011-05-31 2013-04-17 吉林大学 一种消除超声定位中声反射干扰的方法
CN102208951B (zh) * 2011-05-31 2013-07-03 吉林大学 一种消除超声定位中声辐射干扰的方法
US9715001B2 (en) 2011-06-13 2017-07-25 Commscope Technologies Llc Mobile location in a remote radio head environment
US9176217B2 (en) 2011-08-02 2015-11-03 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US8929854B2 (en) 2011-10-27 2015-01-06 Telecommunication Systems, Inc. Emergency text messaging
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
US8922430B2 (en) 2011-12-22 2014-12-30 Trueposition, Inc. Optimization of variable coherence integration for the location of weak signals
US9423508B2 (en) 2012-01-12 2016-08-23 Commscope Technologies Llc Autonomous Transmit Chain Delay Measurements
US8897813B2 (en) 2012-02-03 2014-11-25 Andrew Llc LTE user equipment positioning system and method
EP3139193A1 (en) 2012-06-05 2017-03-08 NextNav, LLC Systems and methods for location positioning of user device
US9390279B2 (en) 2012-09-11 2016-07-12 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
US9286490B2 (en) 2013-09-10 2016-03-15 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
CN102914764A (zh) * 2012-11-24 2013-02-06 中国人民解放军总参谋部第五十七研究所 一种抗接收机采样同步误差的时差定位方法
EP2951608B1 (en) * 2013-01-31 2021-03-10 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Determining a position of a mobile communication device
US9526074B2 (en) 2013-03-15 2016-12-20 Google Technology Holdings LLC Methods and apparatus for determining a transmit antenna gain and a spatial mode of a device
CN103259638B (zh) * 2013-04-19 2016-03-30 电子科技大学 一种异地本振一致性误差下的基带时差估计方法
US20180317019A1 (en) 2013-05-23 2018-11-01 Knowles Electronics, Llc Acoustic activity detecting microphone
US9191916B1 (en) * 2013-09-30 2015-11-17 Sprint Spectrum L.P. Method and system for skewing location determinations
US9408047B2 (en) 2013-10-10 2016-08-02 Telecommunication Systems, Inc. Read acknowledgement interoperability for text messaging and IP messaging
KR101490181B1 (ko) * 2013-11-11 2015-02-05 국방과학연구소 Fdoa를 위한 도플러 주파수 차이 추정장치 및 방법
US9625566B2 (en) 2014-05-21 2017-04-18 Raytheon Company Direct geolocation from TDOA, FDOA and AGL
KR101515513B1 (ko) * 2014-07-29 2015-04-28 엘아이지넥스원 주식회사 도달 시간 차이 기반의 위치 추정 장치
KR101515512B1 (ko) * 2014-07-29 2015-04-28 엘아이지넥스원 주식회사 도달 시간 차이 기반의 위치 추정 방법
US10802108B2 (en) 2014-07-31 2020-10-13 Symbol Technologies, Llc Two pass detection technique for non-echo pulsed ranging
KR101644560B1 (ko) 2014-09-02 2016-08-01 국방과학연구소 통신 신호에 대한 tdoa/fdoa 정보 추정 장치 및 방법
WO2016112113A1 (en) 2015-01-07 2016-07-14 Knowles Electronics, Llc Utilizing digital microphones for low power keyword detection and noise suppression
JP6592912B2 (ja) * 2015-02-13 2019-10-23 株式会社国際電気通信基礎技術研究所 通信システム、受信装置、サーバ、信号処理方法、波源位置算出方法、及びプログラム
CN104640206B (zh) * 2015-02-15 2018-01-19 中国民航大学 一种偏心式星形布站体制的多点定位方法
US11079481B2 (en) * 2015-04-02 2021-08-03 Samsung Electronics Co., Ltd. Apparatus and method for measuring distance and location
US9872141B2 (en) 2015-05-14 2018-01-16 Verint Systems Ltd. System and method for accurate location of wireless terminals using mobile interrogation device
US10666416B2 (en) 2016-04-14 2020-05-26 Ibiquity Digital Corporation Time-alignment measurement for hybrid HD radio technology
US9832007B2 (en) * 2016-04-14 2017-11-28 Ibiquity Digital Corporation Time-alignment measurement for hybrid HD radio™ technology
JP6569612B2 (ja) * 2016-07-08 2019-09-04 三菱電機株式会社 電波源の位置推定装置
CN106405496A (zh) * 2016-08-31 2017-02-15 北斗时空信息技术（北京）有限公司 一种基于tdoa的室内定位方法
CN107843910B (zh) * 2016-09-21 2021-03-16 上海创远仪器技术股份有限公司 一种适于复杂环境下的虚拟多站tdoa定位方法与装置
IL248058B (en) 2016-09-26 2021-04-29 Verint Systems Ltd System and method for obtaining an ID of a mobile communication terminal at a checkpoint
KR101876645B1 (ko) * 2016-12-05 2018-07-09 연세대학교 산학협력단 시간차이에 기초하여 도착각도를 산출하는 시스템 및 방법
US10382094B2 (en) * 2017-11-28 2019-08-13 International Business Machines Corporation Cable tracking by electromagnetic emission
WO2019167268A1 (ja) * 2018-03-02 2019-09-06 三菱電機株式会社 目標監視装置および目標監視システム
US20250180691A1 (en) * 2018-03-29 2025-06-05 Salunda Limited Personnel Safety Sensing System
WO2019186202A1 (en) * 2018-03-29 2019-10-03 Salunda Limited Personnel safety sensing system
US12306290B2 (en) 2018-08-28 2025-05-20 Salunda Limited Personnel safety sensing
EP3874292A4 (en) * 2018-11-01 2022-08-17 Hoopo Systems Ltd. METHOD AND SYSTEM FOR RADIOLOCATION IN REDUCED DATA TRANSMISSION
US11877209B2 (en) 2019-07-28 2024-01-16 Polaris Wireless, Inc. Estimating the location of a multi-band reference radio
CN110533233B (zh) * 2019-08-20 2020-07-31 河海大学 基于适应度优化的无线微波测雨链路规划方法
US11082854B2 (en) * 2019-09-27 2021-08-03 Apple Inc. Signal validation for secure ranging
CN112969231B (zh) 2019-12-12 2025-05-30 中磊电子（苏州）有限公司 超宽带定位系统、基站、标签及其操作方法
FR3105835B1 (fr) * 2019-12-26 2021-11-26 Zodiac Data Systems Localisation d'un émetteur au moyen de plusieurs stations de réception géographiquement distantes en utilisant les trajectoires d'objet connus
CN112255589B (zh) 2020-09-18 2024-01-26 中磊电子（苏州）有限公司 定位标签操作方法与定位系统操作方法
CN112688716B (zh) * 2020-11-06 2021-12-24 西安电子科技大学 一种时频混叠信号时频差估计方法
CN112904274A (zh) * 2021-01-21 2021-06-04 中国人民解放军海军工程大学 一种改进tdoa/fdoa算法的多运动目标定位方法
US20240175975A1 (en) * 2022-11-28 2024-05-30 Crystal Instruments Corporation Outdoor sound source identification
WO2024148503A1 (en) * 2023-01-10 2024-07-18 Qualcomm Incorporated Differential doppler based rf sensing
CN118112498B (zh) * 2024-03-05 2024-10-01 电子科技大学 一种基于数据分段的时差快速估计方法
CN118611800B (zh) * 2024-06-25 2025-09-12 西安电子科技大学 混叠信号的索引模糊度的消除方法

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4888593A (en) 1987-12-15 1989-12-19 Signal Science, Inc. Time difference of arrival geolocation method, etc.
US5265121A (en) 1989-10-17 1993-11-23 Juanita H. Stewart Spread spectrum coherent processor
JPH0797131B2 (ja) * 1990-04-12 1995-10-18 パイオニア株式会社 Ｇｐｓ受信機の衛星電波捕捉方法
US5208756A (en) 1991-01-28 1993-05-04 Song Han L Vehicle locating and navigating system
US5327144A (en) * 1993-05-07 1994-07-05 Associated Rt, Inc. Cellular telephone location system
US5570099A (en) * 1993-10-15 1996-10-29 Loral Federal Systems Company TDOA/FDOA technique for locating a transmitter
US5621416A (en) * 1995-02-02 1997-04-15 Trimble Navigation Limited Optimized processing of signals for enhanced cross-correlation in a satellite positioning system receiver
US5874916A (en) 1996-01-25 1999-02-23 Lockheed Martin Corporation Frequency selective TDOA/FDOA cross-correlation
US6047192A (en) * 1996-05-13 2000-04-04 Ksi Inc. Robust, efficient, localization system
US6108555A (en) 1996-05-17 2000-08-22 Ksi, Inc. Enchanced time difference localization system
US6034635A (en) 1996-06-06 2000-03-07 Gilhousen; Klein S. Method for using only two base stations for determining the position of a mobile subscriber in a CDMA cellular telephone system
US5859612A (en) 1996-06-06 1999-01-12 Qualcomm Incorporated Method for using an antenna with a rotating beam for determining the position of a mobile subscriber in a CDMA cellular telephone system
US6160758A (en) 1996-06-28 2000-12-12 Scientific Innovations, Inc. Utilization of auto and cross-correlation functions in methods for locating a source of a primary signal and for localizing signals
US5945948A (en) * 1996-09-03 1999-08-31 Motorola, Inc. Method and apparatus for location finding in a communication system
GB2354387B (en) 1996-09-09 2001-05-09 Dennis J Dupray Wireless location using multiple simultaneous location estimators
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US6249252B1 (en) 1996-09-09 2001-06-19 Tracbeam Llc Wireless location using multiple location estimators
US5890068A (en) * 1996-10-03 1999-03-30 Cell-Loc Inc. Wireless location system
US6026304A (en) * 1997-01-08 2000-02-15 U.S. Wireless Corporation Radio transmitter location finding for wireless communication network services and management
US5936571A (en) 1997-01-31 1999-08-10 Lockheed Martin Corporation Integrated GPS/interference location system
US6021330A (en) * 1997-07-22 2000-02-01 Lucent Technologies Inc. Mobile location estimation in a wireless system using designated time intervals of suspended communication
US6243587B1 (en) 1997-12-10 2001-06-05 Ericsson Inc. Method and system for determining position of a mobile transmitter
US6522887B2 (en) * 1998-07-27 2003-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Identifying starting time for making time of arrival measurements
US6330452B1 (en) * 1998-08-06 2001-12-11 Cell-Loc Inc. Network-based wireless location system to position AMPs (FDMA) cellular telephones, part I
BR9912770B1 (pt) * 1998-08-07 2014-06-17 Ericsson Telefon Ab L M Proceso para usar uma estação de comunicação móvel em uma rede de comunicação sem fio para medir respectivos tempos de chegada de sinais de rádio respectivamente transmitidos por uma pluralidade de trasmissores de rádio vizinhos na rede, e, aparelho em uma estação de comunicação móvel para uso na localização da posição da estação de comunicação móvel em uma rede de comunicação sem fio
US6246884B1 (en) 1998-08-19 2001-06-12 Sigmaone Communications Corporation System and method for measuring and locating a mobile station signal in a wireless communication system
DE69936354T2 (de) * 1999-01-08 2008-06-19 Trueposition, Inc. Synthese der bandbreite für ein drahtloses positionsbestimmungssystem
US6184829B1 (en) 1999-01-08 2001-02-06 Trueposition, Inc. Calibration for wireless location system
CN1241031C (zh) * 1999-01-08 2006-02-08 真实定位公司 改进无线定位系统的精度的方法
CN1375062A (zh) * 1999-07-20 2002-10-16 高通股份有限公司 确定通信信号中的变化并使用该信息改进sps信号的接收和处理的方法
EP1091611B1 (en) * 1999-10-06 2007-08-29 Matsushita Electric Industrial Co., Ltd. Location system for a cellular telecommunications network
US6366240B1 (en) * 2000-06-14 2002-04-02 L-3 Communications Corporation Location of aircraft with time difference of arrival

Also Published As

Publication number Publication date
US20030017832A1 (en) 2003-01-23
ATE546975T1 (de) 2012-03-15
IL159413A0 (en) 2004-06-01
US6876859B2 (en) 2005-04-05
EP1417847B1 (en) 2012-02-22
EP1417847A4 (en) 2006-02-08
GB0403381D0 (en) 2004-03-17
CN1537395A (zh) 2004-10-13
GB2395080B (en) 2005-03-23
CA2454161A1 (en) 2003-01-30
KR100881946B1 (ko) 2009-02-06
WO2003009613A1 (en) 2003-01-30
JP2009162771A (ja) 2009-07-23
BR0210360A (pt) 2004-06-08
JP2013057668A (ja) 2013-03-28
CN100397911C (zh) 2008-06-25
IL159413A (en) 2008-07-08
CA2454161C (en) 2011-03-15
EP1417847A1 (en) 2004-05-12
GB2395080A (en) 2004-05-12
KR20040017001A (ko) 2004-02-25
JP2004536533A (ja) 2004-12-02
ES2386669T3 (es) 2012-08-24

Similar Documents

Publication Publication Date Title
MXPA04000461A (es) Metodo mejorado para estimar tdoa y fdoa en un sistema de localizacion inalambrica.
Keating et al. Overview of positioning in 5G new radio
Cheung et al. Least squares algorithms for time-of-arrival-based mobile location
US7925274B2 (en) TDOA/GPS hybrid wireless location system
CN100357761C (zh) 物体定位系统、物体定位设备和物体定位方法
US6741863B1 (en) Method and apparatus for locating a wireless mobile unit
KR100691397B1 (ko) 낮은 정확도의 클록을 사용하여 이동 통신 장치의 위치를결정하기 위한 방법 및 장치
US11991734B2 (en) Fingerprinting enhancement with multi-band AoA measurements
US10708881B2 (en) Methods and apparatuses for positioning based on signal correlation function characteristics feedback
US9137771B2 (en) Methods and apparatuses for beacon assisted position determination systems
Cheung et al. Received signal strength based mobile positioning via constrained weighted least squares
US11733342B2 (en) Mobile-based positioning using assistance data provided by onboard micro-BSA
US12158536B2 (en) Mobile-based positioning using assistance data provided by onboard micro-BSA
JP2002532724A5 (enExample)
WO2007025159B1 (en) Dynamic location almanac for wireless base stations
CN104330813A (zh) 跟踪实施地理定位和局部模式
BR0316068A (pt) Equipamento e método de determinação da localização de um repetidor
WO2001057548A1 (en) Positioning
ATE524948T1 (de) Verbesserte positionsbestimmung in drahtlosen kommunikationssystemen
HK1056093A2 (zh) 无綫行动单元通信中心以位置为基础之行动单元及系统
WO2003038467A3 (en) Parameter estimator with dynamically variable integration time
KR20040003013A (ko) 기지국들을 동기시키기 위하여 이동 ｇｐｓ국들을이용하는 방법 및 장치
US7965237B2 (en) Mobile system and method for position estimation
US20210374366A1 (en) Location system and method for tracking infected individuals
US20250308360A1 (en) Methods and systems for locating an asset in and near an indoor environment

Legal Events

Date Code Title Description
FG Grant or registration