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BR112015015190A2 - time distribution device, and method for receiving and distributing a time signal - Google Patents

time distribution device, and method for receiving and distributing a time signal

Info

Publication number
BR112015015190A2
BR112015015190A2 BR112015015190A BR112015015190A BR112015015190A2 BR 112015015190 A2 BR112015015190 A2 BR 112015015190A2 BR 112015015190 A BR112015015190 A BR 112015015190A BR 112015015190 A BR112015015190 A BR 112015015190A BR 112015015190 A2 BR112015015190 A2 BR 112015015190A2
Authority
BR
Brazil
Prior art keywords
time
gnss
signal
monitored
distributing
Prior art date
Application number
BR112015015190A
Other languages
Portuguese (pt)
Inventor
V Achanta Shankar
Original Assignee
Schweitzer Engineering Lab 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
Priority claimed from US13/887,617 external-priority patent/US9759816B2/en
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Publication of BR112015015190A2 publication Critical patent/BR112015015190A2/en

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
    • 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
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • G01S19/215—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service issues related to spoofing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

1 / 1 resumo “dispositivo de distribuiã‡ãƒo de tempo, e, mã‰todo para receber e distribuir um sinal de tempoâ€� o presente pedido descreve a detecã§ã£o de manipulaã§ã£o de sinais do gnss usando uma segunda fonte de tempo. se dois ou mais sinais da constelaã§ã£o do gnss estiverem sendo detectados, o erro de fase entre os sinais da constelaã§ã£o do gnss pode ser monitorado. quando o erro de fase derivar, entã£o, a manipulaã§ã£o ã© determinada. a integridade de um sinal da constelaã§ã£o do gnss pode ser monitorada usando uma fonte de tempo interna, tal como um oscilador de cristal, pelo monitoramento de uma inclinaã§ã£o do contador astã¡vel nas bordas de subida detectadas de um sinal de pulso por segundo proveniente da constelaã§ã£o do gnss. se mais de duas constelaã§ãµes do gnss forem monitoradas, um esquema de votaã§ã£o pode ser usado para determinar a constelaã§ã£o do gnss manipulada.1/1 summary “time distribution device, and method for receiving and distributing a time signal” this application describes gnss signal handling detection using a second source of time. If two or more gnss constellation signals are being detected, the phase error between the gnss constellation signals can be monitored. when the phase error derives, then the manipulation is determined. the integrity of a gnss constellation signal can be monitored using an internal time source, such as a crystal oscillator, by monitoring a tilted counter inclination at the detected rising edges of a pulse signal per second from the gnss constellation. if more than two gnss constellations are monitored, a voting scheme can be used to determine the manipulated gnss constellation.

BR112015015190A 2013-01-11 2014-01-07 time distribution device, and method for receiving and distributing a time signal BR112015015190A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361751746P 2013-01-11 2013-01-11
US13/887,617 US9759816B2 (en) 2013-01-11 2013-05-06 Multi-constellation GNSS integrity check for detection of time signal manipulation
PCT/US2014/010507 WO2014113240A1 (en) 2013-01-11 2014-01-07 Multi-constellation gnss integrity check for detection of time signal manipulation

Publications (1)

Publication Number Publication Date
BR112015015190A2 true BR112015015190A2 (en) 2017-07-11

Family

ID=51210001

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015015190A BR112015015190A2 (en) 2013-01-11 2014-01-07 time distribution device, and method for receiving and distributing a time signal

Country Status (5)

Country Link
AU (1) AU2014207819A1 (en)
BR (1) BR112015015190A2 (en)
CA (1) CA2892153A1 (en)
MX (1) MX2015006701A (en)
WO (1) WO2014113240A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505832B (en) * 2017-08-02 2019-11-19 桂林电子科技大学 A High Precision Timing System

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5737715A (en) * 1996-04-23 1998-04-07 Hughes Electronics Frequency normalization utilizing GPS pulse time and time interval signal
US7375683B2 (en) * 1999-03-05 2008-05-20 Era Systems Corporation Use of geo-stationary satellites to augment wide— area multilateration synchronization
US7398411B2 (en) * 2005-05-12 2008-07-08 Schweitzer Engineering Laboratories, Inc. Self-calibrating time code generator
US20110109506A1 (en) * 2009-09-24 2011-05-12 Coherent Navigation, Inc. Simulating Phase-Coherent GNSS Signals
US7952519B1 (en) * 2010-04-16 2011-05-31 John Nielsen Method and system for detecting GNSS spoofing signals
US8624779B2 (en) * 2010-05-18 2014-01-07 Trimble Navigation Limited Global navigation satellite system (GNSS) reference station integrity monitoring and assurance
US8456353B2 (en) * 2011-01-14 2013-06-04 Deere & Company Method and system for determining clock corrections

Also Published As

Publication number Publication date
MX2015006701A (en) 2015-08-05
WO2014113240A1 (en) 2014-07-24
CA2892153A1 (en) 2014-07-24
AU2014207819A1 (en) 2015-06-04

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law
B08K Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87)