FR2999298B1 - Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface - Google Patents

Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface

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Publication number
FR2999298B1
FR2999298B1 FR1203343A FR1203343A FR2999298B1 FR 2999298 B1 FR2999298 B1 FR 2999298B1 FR 1203343 A FR1203343 A FR 1203343A FR 1203343 A FR1203343 A FR 1203343A FR 2999298 B1 FR2999298 B1 FR 2999298B1
Authority
FR
France
Prior art keywords
propagation
channel filter
correlator
satellite
time
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
FR1203343A
Other languages
English (en)
Other versions
FR2999298A1 (fr
Inventor
Francis Chaminadas
Liboux Jean Christophe Le
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.)
Filing date
Publication date
Application filed by Sagem Defense Securite SA filed Critical Sagem Defense Securite SA
Priority to FR1203343A priority Critical patent/FR2999298B1/fr
Priority to US14/647,815 priority patent/US20150293204A1/en
Priority to CN201380060999.2A priority patent/CN104956238A/zh
Priority to RU2015127825A priority patent/RU2015127825A/ru
Priority to PCT/EP2013/076028 priority patent/WO2014090773A1/fr
Priority to EP13802628.1A priority patent/EP2929369A1/fr
Publication of FR2999298A1 publication Critical patent/FR2999298A1/fr
Application granted granted Critical
Publication of FR2999298B1 publication Critical patent/FR2999298B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • 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
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235—Calibration of receiver components
    • 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
    • G01S5/04—Position of source determined by a plurality of spaced direction-finders
    • 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
    • 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
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain

Landscapes

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

Abstract

L'invention a trait à un récepteur d'un système de localisation par satellites, comprenant : - un filtre de canal (SAW) dans lequel la propagation d'un signal émis par un satellite et reçu par le récepteur s'opère selon un trajet direct et des trajets indirects d'ordre impair; - en aval du filtre de canal, une boucle de poursuite pilotée au moyen d'un corrélateur de pilotage (C1), le récepteur étant caractérisé en ce qu'il comporte : - un registre à décalage (RD) configuré pour générer plusieurs répliques locales (SR2) dudit code décalées les unes des autres pour couvrir une fenêtre temporelle correspondant à deux fois l'incertitude sur une estimation du temps de propagation en traversée directe du filtre de canal, - un second corrélateur (C2) décalé du corrélateur de pilotage d'un temps correspondant à deux fois ladite estimation du temps de propagation en traversée directe du filtre de canal, ledit second corrélateur étant configuré pour réaliser la corrélation du code d'étalement du signal émis par le satellite avec lesdites répliques locales générées par le registre à décalage et détecter un pic de corrélation correspondant à l'acquisition du signal émis par le satellite soumis à une propagation dans le filtre de canal selon un trajet indirect triple.
FR1203343A 2012-12-10 2012-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface Active FR2999298B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR1203343A FR2999298B1 (fr) 2012-12-10 2012-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface
US14/647,815 US20150293204A1 (en) 2012-12-10 2013-12-10 Method and device for determining the propagation time of a surface acoustic wave filter
CN201380060999.2A CN104956238A (zh) 2012-12-10 2013-12-10 用于确定表面声波滤波器的传播时间的方法和设备
RU2015127825A RU2015127825A (ru) 2012-12-10 2013-12-10 Способ и устройство определения времени распространения фильтра на поверхностных акустических волнах
PCT/EP2013/076028 WO2014090773A1 (fr) 2012-12-10 2013-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface
EP13802628.1A EP2929369A1 (fr) 2012-12-10 2013-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203343A FR2999298B1 (fr) 2012-12-10 2012-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface

Publications (2)

Publication Number Publication Date
FR2999298A1 FR2999298A1 (fr) 2014-06-13
FR2999298B1 true FR2999298B1 (fr) 2015-01-09

Family

ID=48607308

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1203343A Active FR2999298B1 (fr) 2012-12-10 2012-12-10 Procede et dispositif de determination du temps de propagation d'un filtre a ondes acoustiques de surface

Country Status (6)

Country Link
US (1) US20150293204A1 (fr)
EP (1) EP2929369A1 (fr)
CN (1) CN104956238A (fr)
FR (1) FR2999298B1 (fr)
RU (1) RU2015127825A (fr)
WO (1) WO2014090773A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108337197B (zh) * 2017-01-17 2021-08-03 中兴通讯股份有限公司 一种直射径提取方法及装置
CN109033952B (zh) * 2018-06-12 2022-05-27 杭州电子科技大学 基于稀疏自编码器的m序列识别方法
CN113703009B (zh) * 2021-07-30 2022-03-25 中国人民解放军91977部队 一种卫星探测海上目标能力评估系统及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164628A (en) * 1977-06-06 1979-08-14 International Telephone And Telegraph Corporation Processor for multiple, continuous, spread spectrum signals
US4559607A (en) * 1983-07-11 1985-12-17 International Telephone And Telegraph Corporation Arrangement to provide an accurate time-of-arrival indication for a plurality of received signals
US6249542B1 (en) * 1997-03-28 2001-06-19 Sirf Technology, Inc. Multipath processing for GPS receivers
US5949372A (en) * 1997-10-03 1999-09-07 Trimble Navigation Limited Signal injection for calibration of pseudo-range errors in satellite positioning system receivers
JP2000171543A (ja) * 1998-12-09 2000-06-23 Japan Radio Co Ltd 高精度衛星航法装置
TW518839B (en) * 2000-08-30 2003-01-21 Ind Tech Res Inst Method and device of code group identification and frame edge synchronization
KR100604827B1 (ko) * 2003-11-05 2006-07-28 삼성전자주식회사 에너지 손실을 보상하고 심볼간 간섭 및 칩간 간섭을동시에 제거하는 무선 랜을 위한 레이크 수신기 및 그 방법
US7639734B2 (en) * 2005-03-08 2009-12-29 Applied Research Associates, Inc. Ultra-narrow bandwidth radio frequency communications link
CN101051080B (zh) * 2006-04-05 2010-05-12 中国科学院微电子研究所 一种高灵敏度的gps信号载波跟踪方法
CN101666869B (zh) * 2009-09-21 2012-02-01 浙江大学 微弱卫星导航信号二次捕获方法与装置

Also Published As

Publication number Publication date
RU2015127825A (ru) 2017-01-12
CN104956238A (zh) 2015-09-30
FR2999298A1 (fr) 2014-06-13
WO2014090773A1 (fr) 2014-06-19
EP2929369A1 (fr) 2015-10-14
US20150293204A1 (en) 2015-10-15

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