ES2173684T3 - Aparato y metodo de generacion de frecuencia de referencia. - Google Patents

Aparato y metodo de generacion de frecuencia de referencia.

Info

Publication number
ES2173684T3
ES2173684T3 ES99107496T ES99107496T ES2173684T3 ES 2173684 T3 ES2173684 T3 ES 2173684T3 ES 99107496 T ES99107496 T ES 99107496T ES 99107496 T ES99107496 T ES 99107496T ES 2173684 T3 ES2173684 T3 ES 2173684T3
Authority
ES
Spain
Prior art keywords
timing information
reference frequency
data stream
frequency
information extracted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES99107496T
Other languages
English (en)
Inventor
Peter Siebert
Detlef Schulz
Gerhard Bethscheider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Europeenne des Satellites SA
Original Assignee
Europeenne des Satellites SA
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 Europeenne des Satellites SA filed Critical Europeenne des Satellites SA
Application granted granted Critical
Publication of ES2173684T3 publication Critical patent/ES2173684T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Radio Relay Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Electric Clocks (AREA)
  • General Induction Heating (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

Dispositivo para generar una frecuencia de referencia (fRF ) que depende de una información con respecto al tiempo extraída de un flujo de datos (11), compuesto de: al menos un sistema operativo de oscilación sin sincronizar (1; 41, 44), en el cual al menos dos señales de oscilación (fLO, fOSC, fLO, fOSC;out, fOSC;in) son derivadas de los sistemas de oscilación (1; 41, 44) de los que al menos debe haber uno, un sistema de estimación (5; 51, 52) para estimar la desviación de frecuencia para cada uno de los sistemas de oscilación operativos sin sincronizar (1; 41, 44) de los que debe haber al menos uno, en función de la información con respecto al tiempo; un sistema de modificación de frecuencia (6; 46) para modificar la frecuencia de al menos una de las dos señales de oscilación (fLO, fOSC, fLO, fOSC;out, fOSC;in) mediante un valor de corrección de frecuencia (fCOMP), un sistema de enlace (3, 7; 43, 47) para enlazar al menos dos señales de oscilación (fLO, FOSC, fLO, fOSC;out, fOSC;in) con una señal que produce dicha frecuencia de referencia (fRF ) conectándose la frecuencia de referencia (fRF ) a las frecuencias de al menos dos señales de oscilación (fLO, fOSC, fLO, fOSC;out, fOSC;in) mediante una relación funcional inequívoca, un sistema de control (5; 53) para determinar el valor de corrección de frecuencia (fCOMP) respectivo en función de la desviación de frecuencia estimada, que debe ser al menos una, de tal manera que la información con respecto al tiempo proporcionada por la frecuencia de referencia (fRF ) se corresponda con la información con respecto al tiempo extraída de dicho flujo de datos (11).
ES99107496T 1999-02-19 1999-04-30 Aparato y metodo de generacion de frecuencia de referencia. Expired - Lifetime ES2173684T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99103288 1999-02-19
EP99103407 1999-02-22

Publications (1)

Publication Number Publication Date
ES2173684T3 true ES2173684T3 (es) 2002-10-16

Family

ID=26152897

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99107496T Expired - Lifetime ES2173684T3 (es) 1999-02-19 1999-04-30 Aparato y metodo de generacion de frecuencia de referencia.

Country Status (12)

Country Link
US (1) US6754296B2 (es)
EP (1) EP1030464B1 (es)
JP (1) JP3553020B2 (es)
AT (1) ATE213368T1 (es)
AU (1) AU754850B2 (es)
BR (1) BR0008350A (es)
CA (1) CA2362125C (es)
DE (1) DE69900886T2 (es)
DK (1) DK1030464T3 (es)
ES (1) ES2173684T3 (es)
PT (1) PT1030464E (es)
WO (1) WO2000049732A1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1510018B1 (en) * 2002-05-29 2008-11-12 Thomson Licensing Method and apparatus for enabling transmission of a wireless return channel signal in a satellite communications system
EP2472736A1 (en) 2003-05-23 2012-07-04 Gilat Satellite Networks Ltd. Frequency and timing synchronization and error correction in a satellite network
DE10334904B3 (de) * 2003-07-29 2005-05-19 Zentrum Mikroelektronik Dresden Ag Verfahren und Anordnung zur Erzeugung einer Zeitbasis in einem Transponder
EP1739450A1 (en) 2005-06-30 2007-01-03 SES Astra S.A. Method and apparatus for determining the location of a stationary satellite receiver
US7702056B2 (en) * 2006-10-26 2010-04-20 Toshiba America Electronic Components, Inc. Time base corrector
JP4729054B2 (ja) * 2008-01-28 2011-07-20 株式会社東芝 通信用半導体集積回路
US8489018B2 (en) 2009-07-09 2013-07-16 Viasat, Inc. Transmit frequency precorrection for satellite terminals
KR102375952B1 (ko) * 2015-01-22 2022-03-17 삼성전자주식회사 위상 고정 검출 장치 및 검출 방법
WO2016196142A1 (en) * 2015-05-31 2016-12-08 Hughes Network Systems, Llc Half-duplex communications for a very small aperture terminal (vsat) operating on a continuous stream
US11869679B2 (en) 2021-03-10 2024-01-09 Hrl Laboratories, Llc Ramsey-bordé ion frequency-reference apparatus, and methods of making and using the same
US11849416B1 (en) * 2021-11-30 2023-12-19 Synapse Wireless, Inc. Methods and systems for coordinating nodes in a mesh network
US12456616B1 (en) 2023-02-20 2025-10-28 Hrl Laboratories, Llc Ion trap for atomic clocks, mass spectrometry, atomic sensing, and quantum computing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841987A (en) * 1994-08-19 1998-11-24 Thomson Consumer Electronics, Inc. Simple bus and interface system for consumer digital equipment
US5588025A (en) * 1995-03-15 1996-12-24 David Sarnoff Research Center, Inc. Single oscillator compressed digital information receiver
DE69713241T2 (de) * 1996-10-08 2003-02-20 Sony Corp., Tokio/Tokyo Empfangsvorrichtung und -verfahren und Phasenregelkreis
US6128433A (en) * 1997-12-31 2000-10-03 Indigita Corporation Controlling frequency drift of a digital video tape drive

Also Published As

Publication number Publication date
US20020136339A1 (en) 2002-09-26
DK1030464T3 (da) 2002-05-21
CA2362125A1 (en) 2000-08-24
AU754850B2 (en) 2002-11-28
ATE213368T1 (de) 2002-02-15
CA2362125C (en) 2008-02-05
WO2000049732A1 (en) 2000-08-24
JP2002537713A (ja) 2002-11-05
JP3553020B2 (ja) 2004-08-11
PT1030464E (pt) 2002-07-31
US6754296B2 (en) 2004-06-22
EP1030464B1 (en) 2002-02-13
DE69900886T2 (de) 2002-08-14
EP1030464A1 (en) 2000-08-23
HK1027230A1 (en) 2001-01-05
AU2547200A (en) 2000-09-04
BR0008350A (pt) 2002-01-22
DE69900886D1 (de) 2002-03-21

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