BR9510640A - Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal - Google Patents

Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal

Info

Publication number
BR9510640A
BR9510640A BR9510640A BR9510640A BR9510640A BR 9510640 A BR9510640 A BR 9510640A BR 9510640 A BR9510640 A BR 9510640A BR 9510640 A BR9510640 A BR 9510640A BR 9510640 A BR9510640 A BR 9510640A
Authority
BR
Brazil
Prior art keywords
unknown
signals
dfo
signal
dto
Prior art date
Application number
BR9510640A
Other languages
English (en)
Inventor
David Patrick Haworth
Original Assignee
Secr Defence
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 Secr Defence filed Critical Secr Defence
Priority to BR9510640A priority Critical patent/BR9510640A/pt
Publication of BR9510640A publication Critical patent/BR9510640A/pt

Links

Classifications

    • 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
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/20—Integrity monitoring, fault detection or fault isolation of space segment
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Eye Examination Apparatus (AREA)
  • Electromechanical Clocks (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Vehicle Body Suspensions (AREA)
BR9510640A 1995-09-20 1995-09-20 Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal BR9510640A (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR9510640A BR9510640A (pt) 1995-09-20 1995-09-20 Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR9510640A BR9510640A (pt) 1995-09-20 1995-09-20 Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal
PCT/GB1995/002211 WO1997011383A1 (en) 1995-09-20 1995-09-20 Locating the source of an unknown signal

Publications (1)

Publication Number Publication Date
BR9510640A true BR9510640A (pt) 1999-03-16

Family

ID=10769104

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9510640A BR9510640A (pt) 1995-09-20 1995-09-20 Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal

Country Status (15)

Country Link
US (1) US6018312A (pt)
EP (1) EP0852017B1 (pt)
JP (1) JP3556952B2 (pt)
KR (1) KR100319993B1 (pt)
AT (1) ATE182687T1 (pt)
AU (1) AU708274B2 (pt)
BR (1) BR9510640A (pt)
CA (1) CA2232396C (pt)
DE (1) DE69511118T2 (pt)
ES (1) ES2133806T3 (pt)
GB (1) GB2321356B (pt)
GR (1) GR3031185T3 (pt)
HK (1) HK1015880A1 (pt)
MX (1) MX9802116A (pt)
WO (1) WO1997011383A1 (pt)

Families Citing this family (129)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6215442B1 (en) * 1997-02-03 2001-04-10 Snaptrack, Inc. Method and apparatus for determining time in a satellite positioning system
US7198230B2 (en) * 1997-10-14 2007-04-03 The Directv Group, Inc. Method and system for maximizing satellite constellation coverage
US5936570A (en) * 1998-03-05 1999-08-10 Teledesic Llc Low-earth orbit satellite acquisition and synchronization system using a beacon signal
US6317077B1 (en) * 1999-02-22 2001-11-13 Hughes Electronics Corporation Method and system of determining user terminal position using multiple satellites
US6147640A (en) * 1999-03-16 2000-11-14 Hughes Electronics Corporation Communications satellite interference location system
US6493380B1 (en) * 1999-05-28 2002-12-10 Nortel Networks Limited System and method for estimating signal time of arrival
GB9919525D0 (en) * 1999-08-19 1999-10-20 Secr Defence Method and apparatus for locating the source of an unknown signal
FI106655B (fi) * 1999-09-27 2001-03-15 Nokia Corp Menetelmä ja järjestelmä lähettimen paikantamiseksi
FR2801682B1 (fr) 1999-11-29 2006-09-08 Cit Alcatel Procede de localisation d'emetteur parasite pour systeme de telecommunications par satellite
WO2002027974A2 (en) * 2000-09-28 2002-04-04 Ses Astra S.A. Satellite communications system
FR2819657B1 (fr) * 2001-01-15 2003-04-11 Cit Alcatel Procede et dispositif de localisation d'un emetteur terrestre a partir d'un satellite
GB2373940A (en) 2001-03-27 2002-10-02 Secr Defence Locating the source of an unknown signal
US6759983B2 (en) 2001-03-28 2004-07-06 Strategic Analysis, Inc. Method and device for precise geolocation of low-power, broadband, amplitude-modulated signals
FR2823857B1 (fr) 2001-04-23 2006-11-24 Agence Spatiale Europeenne Procede de determination de la position d'une balise emettrice
AU2002305411A1 (en) * 2001-05-08 2002-11-18 Comsat Corporation Method and apparatus for measuring adjacent satellite interference
US6784827B2 (en) * 2001-12-21 2004-08-31 International Business Machines Corporation Determining a time of arrival of a sent signal
WO2003069941A1 (en) * 2002-02-15 2003-08-21 Nokia Corporation Positioning in a telecommunications system
US6891500B2 (en) * 2002-03-18 2005-05-10 Christopher J. Hall Method and apparatus for geolocating a wireless communications device
US20050003828A1 (en) * 2002-04-09 2005-01-06 Sugar Gary L. System and method for locating wireless devices in an unsynchronized wireless environment
US7006838B2 (en) * 2002-11-27 2006-02-28 Cognio, Inc. System and method for locating sources of unknown wireless radio signals
US6882936B2 (en) * 2003-03-03 2005-04-19 Lockheed Martin Corporation Integrated GPS/interference location system with anti-jam processor
US7702002B2 (en) * 2004-01-28 2010-04-20 Qualcomm Incorporated Rapid acquisition methods and apparatus for GPS signals
US7783110B2 (en) * 2004-12-01 2010-08-24 Bae Systems Information And Electronic Systems Integration Inc. Semicoherent channel estimator
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
US7508344B2 (en) * 2005-11-29 2009-03-24 L-3 Communications Integrated Systems, Lp Systems and methods for TDOA/FDOA location
US7498986B2 (en) * 2005-12-05 2009-03-03 Honeywell International Inc. Methods and systems for locating actuators for improvised explosive devices
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
US7477191B2 (en) * 2006-03-03 2009-01-13 Cisco Technology, Inc. System and method for performing time difference of arrival location without requiring a common time base or clock calibration
GB0606501D0 (en) * 2006-03-31 2006-05-10 Qinetiq Ltd Satellite ephemeris error
JP2008064566A (ja) * 2006-09-06 2008-03-21 Mitsubishi Electric Corp 軌道推定方法とその装置
GB2443226B (en) * 2006-10-28 2011-08-17 Qinetiq Ltd Method and apparatus for locating the source of an unknown signal
US7471245B2 (en) * 2007-01-31 2008-12-30 L3 Communications Integrated Systems, L.P. Method and apparatus for estimating geolocations
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
US7667640B2 (en) * 2007-04-13 2010-02-23 Glowlink Communications Technology, Inc. Determining a geolocation solution of an emitter on earth using satellite signals
GB0719004D0 (en) * 2007-09-27 2008-01-02 Qinetiq Ltd Interference power measurement
US7626546B2 (en) * 2007-09-27 2009-12-01 L-3 Communications Integrated Systems L.P. Methods and systems for detection and location of multiple emitters
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
JP5183246B2 (ja) * 2008-02-25 2013-04-17 三菱電機株式会社 未知送信局の測位装置及び測位方法
US8116419B2 (en) * 2008-07-14 2012-02-14 Alcatel Lucent Methods and apparatuses for estimating time delay and frequency offset in single frequency networks
ES2371120T3 (es) 2008-07-24 2011-12-27 Ses Astra S.A. Sistema y procedimiento de estimación de posición de nave espacial.
US20180329018A9 (en) * 2008-07-25 2018-11-15 etherwhere Coporation System framework for mobile device location
JP2010060303A (ja) * 2008-09-01 2010-03-18 Mitsubishi Electric Corp 測位装置
US7893875B1 (en) * 2008-10-31 2011-02-22 The United States Of America As Represented By The Director National Security Agency Device for and method of geolocation
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
US8134493B2 (en) * 2009-07-02 2012-03-13 Raytheon Company System and method for precision geolocation utilizing multiple sensing modalities
US8179317B2 (en) * 2009-09-10 2012-05-15 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for passive geolocation using synthetic-aperture processing
US9053513B2 (en) 2010-02-25 2015-06-09 At&T Mobility Ii Llc Fraud analysis for a location aware transaction
US9008684B2 (en) 2010-02-25 2015-04-14 At&T Mobility Ii Llc Sharing timed fingerprint location information
US9196157B2 (en) 2010-02-25 2015-11-24 AT&T Mobolity II LLC Transportation analytics employing timed fingerprint location information
US8224349B2 (en) 2010-02-25 2012-07-17 At&T Mobility Ii Llc Timed fingerprint locating in wireless networks
US8254959B2 (en) 2010-02-25 2012-08-28 At&T Mobility Ii Llc Timed fingerprint locating for idle-state user equipment in wireless networks
US8447328B2 (en) 2010-08-27 2013-05-21 At&T Mobility Ii Llc Location estimation of a mobile device in a UMTS network
US9009629B2 (en) 2010-12-01 2015-04-14 At&T Mobility Ii Llc Motion-based user interface feature subsets
US8878726B2 (en) * 2011-03-16 2014-11-04 Exelis Inc. System and method for three-dimensional geolocation of emitters based on energy measurements
US8248297B1 (en) * 2011-04-11 2012-08-21 Advanced Testing Technologies, Inc. Phase noise measurement system and method
US8878725B2 (en) 2011-05-19 2014-11-04 Exelis Inc. System and method for geolocation of multiple unknown radio frequency signal sources
US8615190B2 (en) 2011-05-31 2013-12-24 Exelis Inc. System and method for allocating jamming energy based on three-dimensional geolocation of emitters
US8612410B2 (en) 2011-06-30 2013-12-17 At&T Mobility Ii Llc Dynamic content selection through timed fingerprint location data
US9462497B2 (en) 2011-07-01 2016-10-04 At&T Mobility Ii Llc Subscriber data analysis and graphical rendering
US8761799B2 (en) 2011-07-21 2014-06-24 At&T Mobility Ii Llc Location analytics employing timed fingerprint location information
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
US8723730B2 (en) 2011-07-27 2014-05-13 Exelis Inc. System and method for direction finding and geolocation of emitters based on line-of-bearing intersections
JP5599371B2 (ja) * 2011-07-28 2014-10-01 三菱電機株式会社 測位装置
WO2013066463A2 (en) * 2011-08-12 2013-05-10 Bae Systems Information & Electronic System Integration Inc. Link 16-based geolocation of hostile jammers
US8666390B2 (en) 2011-08-29 2014-03-04 At&T Mobility Ii Llc Ticketing mobile call failures based on geolocated event data
US8923134B2 (en) 2011-08-29 2014-12-30 At&T Mobility Ii Llc Prioritizing network failure tickets using mobile location data
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
US9026133B2 (en) 2011-11-28 2015-05-05 At&T Mobility Ii Llc Handset agent calibration for timing based locating systems
US8970432B2 (en) 2011-11-28 2015-03-03 At&T Mobility Ii Llc Femtocell calibration for timing based locating systems
US8644794B1 (en) 2012-02-02 2014-02-04 Google Inc. Luggage locator
US8866672B2 (en) 2012-04-05 2014-10-21 L-3 Communications Integrated Systems Lp Cooperative systems and methods for TDOA-based emitter location
US8925104B2 (en) 2012-04-13 2014-12-30 At&T Mobility Ii Llc Event driven permissive sharing of information
US8929827B2 (en) 2012-06-04 2015-01-06 At&T Mobility Ii Llc Adaptive calibration of measurements for a wireless radio network
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
KR101224512B1 (ko) * 2012-09-03 2013-01-21 한국항공우주연구원 Ｔｄｏａ 기법을 기반으로 하는 미지신호 발생원 위치 측정방법
CA2833005A1 (en) 2012-11-27 2014-05-27 Eutelsat Sa Method of geo localization of a terminal sending a single signal to a satellite system
US10720986B2 (en) 2012-12-05 2020-07-21 Ses S.A. Apparatuses, systems and methods for obtaining information about electromagnetic energy emitted from the earth, such as for locating an interference source on earth
US9086471B2 (en) 2012-12-05 2015-07-21 Ses S.A. Apparatuses, systems and methods for obtaining information about electromagnetic energy emitted from the earth, such as for locating an interference source on earth
US10231206B2 (en) 2013-03-15 2019-03-12 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying signal-emitting devices
US10219163B2 (en) 2013-03-15 2019-02-26 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10257728B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10271233B2 (en) 2013-03-15 2019-04-23 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US10237770B2 (en) 2013-03-15 2019-03-19 DGS Global Systems, Inc. Systems, methods, and devices having databases and automated reports for electronic spectrum management
US10244504B2 (en) 2013-03-15 2019-03-26 DGS Global Systems, Inc. Systems, methods, and devices for geolocation with deployable large scale arrays
US8750156B1 (en) 2013-03-15 2014-06-10 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US9288683B2 (en) 2013-03-15 2016-03-15 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10122479B2 (en) 2017-01-23 2018-11-06 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection with temporal feature extraction within a spectrum
US10257729B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems, methods, and devices having databases for electronic spectrum management
US11646918B2 (en) 2013-03-15 2023-05-09 Digital Global Systems, Inc. Systems, methods, and devices for electronic spectrum management for identifying open space
US10257727B2 (en) 2013-03-15 2019-04-09 DGS Global Systems, Inc. Systems methods, and devices having databases and automated reports for electronic spectrum management
US10299149B2 (en) 2013-03-15 2019-05-21 DGS Global Systems, Inc. Systems, methods, and devices for electronic spectrum management
US10444371B2 (en) * 2014-03-21 2019-10-15 The Boeing Company Interference geolocation using a satellite constellation
US9766343B2 (en) * 2014-06-19 2017-09-19 Novatel Inc. System and method for determining location of an interfering signal source
US9351111B1 (en) 2015-03-06 2016-05-24 At&T Mobility Ii Llc Access to mobile location related information
CN104900752A (zh) * 2015-04-14 2015-09-09 中国电子科技集团公司第四十四研究所 黑硅层制作方法及黑硅pin光电探测器制备方法
PT3357285T (pt) * 2015-10-02 2021-09-24 Ericsson Telefon Ab L M Sincronização de relógios numa rede de comunicações
EP3156814B1 (en) 2015-10-14 2024-03-27 Bull Sas Method for locating a terrestrial transmitting source of an unknown signal
JP6009131B1 (ja) * 2015-12-25 2016-10-19 三菱電機株式会社 速度推定装置
WO2017122206A1 (en) * 2016-01-13 2017-07-20 Hoopo Systems Ltd. Method and system for radiolocation
KR102625211B1 (ko) * 2016-05-16 2024-01-16 한국전자통신연구원 무선 통신 신호의 수신 시각 산출 장치 및 방법
US10151781B2 (en) 2016-06-17 2018-12-11 Li-Cor, Inc. Spectral response synthesis on trace data
US9971936B2 (en) 2016-06-17 2018-05-15 Li-Cor, Inc. Adaptive signal detection and synthesis on trace data
US10521657B2 (en) 2016-06-17 2019-12-31 Li-Cor, Inc. Adaptive asymmetrical signal detection and synthesis methods and systems
US10498951B2 (en) 2017-01-23 2019-12-03 Digital Global Systems, Inc. Systems, methods, and devices for unmanned vehicle detection
US10459020B2 (en) 2017-01-23 2019-10-29 DGS Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within a spectrum
US10700794B2 (en) 2017-01-23 2020-06-30 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time within an electromagnetic spectrum
US10529241B2 (en) 2017-01-23 2020-01-07 Digital Global Systems, Inc. Unmanned vehicle recognition and threat management
IL256679B2 (en) 2017-12-31 2023-02-01 Elta Systems Ltd Systems and methods for locating a signal source
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
US10943461B2 (en) 2018-08-24 2021-03-09 Digital Global Systems, Inc. Systems, methods, and devices for automatic signal detection based on power distribution by frequency over time
US11022670B1 (en) 2018-09-13 2021-06-01 L3Harris Technologies, Inc. Opportunistic adjustable rate cross-ambiguity function geolocation
EP3874292A4 (en) * 2018-11-01 2022-08-17 Hoopo Systems Ltd. METHOD AND SYSTEM FOR RADIOLOCATION IN REDUCED DATA TRANSMISSION
CN110324041B (zh) * 2019-07-11 2022-11-18 中国人民解放军国防科技大学 一种宽带交叉采样系统通道失配估计方法
KR102150099B1 (ko) * 2019-10-01 2020-08-31 국방과학연구소 Fm 신호 기반의 pcl 시스템에서 표적 데이터를 추출하는 방법 및 장치
RU2717231C1 (ru) * 2019-10-08 2020-03-19 федеральное государственное казенное военное образовательное учреждение высшего образования "Военная академия связи имени Маршала Советского Союза С.М. Буденного" Министерства обороны Российской Федерации Разностно-дальномерный способ определения координат источника радиоизлучения
CN112083406B (zh) * 2020-09-17 2022-05-17 电子科技大学 一种对目标高度稳健的外辐射源二维定位方法
KR102586255B1 (ko) * 2021-06-10 2023-10-10 부산대학교 산학협력단 Pcl 시스템의 표적 탐지기 학습을 위한 합성 데이터 생성 방법 및 장치
US12069567B2 (en) * 2022-01-03 2024-08-20 Epiq Solutions Wideband network scanning and spectral analysis
AU2022456513A1 (en) * 2022-04-28 2024-09-12 Mitsubishi Electric Corporation Position orientation device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799062A (en) * 1987-04-27 1989-01-17 Axonn Corporation Radio position determination method and apparatus
US5008679A (en) * 1990-01-31 1991-04-16 Interferometrics Incorporated Method and system for locating an unknown transmitter
FR2678437B1 (fr) * 1991-06-28 1994-01-28 France Telecom Antenne mixte pour reception de signaux emis simultanement par satellite et par stations terrestres, notamment pour la reception de signaux de radiodiffusion sonore numerique.
CA2106534A1 (en) * 1992-12-07 1994-06-08 Kristine Patricia Maine Intelligent position tracking
US5317323A (en) * 1993-03-05 1994-05-31 E-Systems, Inc. Passive high accuracy geolocation system and method
US5570099A (en) * 1993-10-15 1996-10-29 Loral Federal Systems Company TDOA/FDOA technique for locating a transmitter
US5594452A (en) * 1994-12-01 1997-01-14 Interferometrics, Inc. Method and system for locating an unknown transmitter using calibrated oscillator phases

Also Published As

Publication number Publication date
GB2321356B (en) 1999-08-04
US6018312A (en) 2000-01-25
ATE182687T1 (de) 1999-08-15
MX9802116A (es) 1998-05-31
GB2321356A (en) 1998-07-22
AU708274B2 (en) 1999-07-29
DE69511118T2 (de) 1999-11-18
KR19990063678A (ko) 1999-07-26
JP3556952B2 (ja) 2004-08-25
EP0852017A1 (en) 1998-07-08
CA2232396A1 (en) 1997-03-27
DE69511118D1 (de) 1999-09-02
AU3612195A (en) 1997-04-09
CA2232396C (en) 2002-05-07
GR3031185T3 (en) 1999-12-31
GB9805264D0 (en) 1998-05-06
KR100319993B1 (ko) 2002-06-20
ES2133806T3 (es) 1999-09-16
WO1997011383A1 (en) 1997-03-27
JP2000512380A (ja) 2000-09-19
EP0852017B1 (en) 1999-07-28
HK1015880A1 (en) 1999-10-22

Similar Documents

Publication Publication Date Title
BR9510640A (pt) Processo e aparelho para localizar a fonte de um sinal desconhecido recebido de diversos retransmissores de sinal
CA2380802A1 (en) Method and apparatus for locating the source of an unknown signal
GB0107610D0 (en) Source location system
CA2188667A1 (en) Global positioning system (gps) receiver for recovery and tracking of signals modulated with p-code
US7471238B2 (en) Multitarget tracking antispoofing receiver
WO1998025157A3 (en) An improved gps receiver utilizing a communication link
EA200301071A1 (ru) Система измерения расстояния для определения информации о расстоянии до космического аппарата
NO901918L (no) Fremgangsmaate og antennesystem for signalmottaking.
AU3197193A (en) A pseudorandom noise ranging receiver which compensates for multipath distortion by dynamically adjusting the time delay spacing between early and late correlators
EP0807829A3 (en) Satellite ephemeris determination system using GPS tracking techniques
WO1997006446A3 (en) Multipath error reduction in a spread spectrum receiver for ranging applications
ES2150251T3 (es) Metodo y aparato para la medicion de distancias.
SE9502780D0 (sv) Förfarande och anordning för digitala system
US20040021515A1 (en) Adaptive spatial temporal selective attenuator with restored phase
ATE188040T1 (de) Signalverarbeitungssystem
US10838072B2 (en) Fast fix using a perfect reference in a satellite-based positioning system
EP1152546A3 (en) System for acquiring spread spectrum signals
CA2255494A1 (en) A method of processing signals of a satellite positioning system
Mattos Solutions to the cross-correlation and oscillator stability problems for indoor C/A code GPS
EP1444532A2 (en) Method and apparatus for spread spectrum signal acquisition
WO2002023213A2 (en) Efficient algorithm for processing gps signals
EP1724601B1 (en) Positioning apparatus and positioning method
CA2525798A1 (en) Mitigation of multipath effects in global positioning system receivers
JPH04361185A (ja) 電波受信装置

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
PC Transfer

Free format text: QINETIQ LIMITED (GB)

FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B25A Requested transfer of rights approved

Owner name: INTEGRAL SYSTEMS, INC. (US)

Free format text: TRANSFERIDO DE: QINETIQ LIMITED

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2257 DE 08-04-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.