ES2332433T3 - Procedimiento y sistema de vigilancia de bucles de seguimiento de codigo en un receptor de posicionado por satelites. - Google Patents

Procedimiento y sistema de vigilancia de bucles de seguimiento de codigo en un receptor de posicionado por satelites. Download PDF

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Publication number
ES2332433T3
ES2332433T3 ES08101907T ES08101907T ES2332433T3 ES 2332433 T3 ES2332433 T3 ES 2332433T3 ES 08101907 T ES08101907 T ES 08101907T ES 08101907 T ES08101907 T ES 08101907T ES 2332433 T3 ES2332433 T3 ES 2332433T3
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ES
Spain
Prior art keywords
correlators
loops
procedure
monitoring system
advanced
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.)
Active
Application number
ES08101907T
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English (en)
Inventor
Denis Bouvet
Alexandre Artault
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.)
Safran Electronics and Defense SAS
Original Assignee
Sagem Defense Securite 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.)
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Publication date
Application filed by Sagem Defense Securite SA filed Critical Sagem Defense Securite SA
Application granted granted Critical
Publication of ES2332433T3 publication Critical patent/ES2332433T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G01S19/22—Multipath-related issues
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

Procedimiento de vigilancia continua de un bucle de seguimiento (10) de una señal recibida (S) de un satélite, siendo dicha señal adquirida por un receptor de posicionado por satélite a través de un canal asociado a dicho satélite, siendo dicho bucle (10) pilotado por unos resultados de correlación (I E , Q E , I M , Q P , I L , Q L ), determinados por medio de correlacionadores de pilotaje (E, P, L) centrados sobre un pico de correlación de la señal recibida (S) y tomando en consideración la señal recibida (S) y unas señales de réplica (S ER, S RP, S RL) desplazadas temporalmente unas con respecto a las otras, caracterizado porque se determina una pluralidad de energías (E VE1 , E VE2 ,..., E VEC ) por medio de una pluralidad de correlacionadores avanzados de vigilancia (VE 1, VE 2,..., VE C) que toman en consideración la señal recibida (S) y unas señales de réplica temporalmente avanzadas (S R1,...S RC) con respecto a las señales de réplica (S RE, S RP, S RL) utilizadas por los correlacionadores de pilotaje (E, P, L), y porque se compara por medio de un detector (30) cada una de las energías (E VE1 , E VE2 ,... E VEC ) procedentes de los resultados de correlación obtenidos por medio de los correlacionadores avanzados de vigilancia (VE1, VE2,..., VEC) con un umbral (V) de manera que vigilen que el pico de correlación sobre el cual están centrados los correlacionadores de pilotaje es relativo al trayecto directo de la señal recibida (S), siendo dicho umbral (V) función de la estimación de la energía del ruido a la salida de los correlacionadores y de una probabilidad de falsa alarma asignada al detector (30).
ES08101907T 2007-02-22 2008-02-22 Procedimiento y sistema de vigilancia de bucles de seguimiento de codigo en un receptor de posicionado por satelites. Active ES2332433T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0753436A FR2913114B1 (fr) 2007-02-22 2007-02-22 Procede et systeme de surveillance de boucles de poursuite de code dans un recepteur de positionnement par satellites

Publications (1)

Publication Number Publication Date
ES2332433T3 true ES2332433T3 (es) 2010-02-04

Family

ID=38542021

Family Applications (1)

Application Number Title Priority Date Filing Date
ES08101907T Active ES2332433T3 (es) 2007-02-22 2008-02-22 Procedimiento y sistema de vigilancia de bucles de seguimiento de codigo en un receptor de posicionado por satelites.

Country Status (5)

Country Link
EP (1) EP1962101B1 (es)
AT (1) ATE445169T1 (es)
DE (1) DE602008000185D1 (es)
ES (1) ES2332433T3 (es)
FR (1) FR2913114B1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8233516B2 (en) 2009-06-24 2012-07-31 Qualcomm Incorporated Wideband correlation mode switching methods and apparatuses
GB201401237D0 (en) 2014-01-24 2014-03-12 Qinetiq Ltd Improvements to satellite positioning methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0150279B1 (ko) * 1995-12-18 1998-11-02 양승택 코드확산 통신시스템의 수신기에서의 코드 추적기
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
US6873667B2 (en) * 2000-01-05 2005-03-29 Texas Instruments Incorporated Spread spectrum time tracking
US6658048B1 (en) * 2000-04-07 2003-12-02 Nokia Mobile Phones, Ltd. Global positioning system code phase detector with multipath compensation and method for reducing multipath components associated with a received signal
CN1151622C (zh) * 2000-12-18 2004-05-26 信息产业部电信传输研究所 基于多径信道能量窗重心跟踪环路的导频信道跟踪方法
US7916771B2 (en) * 2004-05-17 2011-03-29 Uti Limited Partnership BOC signal acquisition and tracking method and apparatus

Also Published As

Publication number Publication date
DE602008000185D1 (de) 2009-11-19
FR2913114B1 (fr) 2009-04-24
EP1962101B1 (fr) 2009-10-07
EP1962101A1 (fr) 2008-08-27
ATE445169T1 (de) 2009-10-15
FR2913114A1 (fr) 2008-08-29

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