FR3116401B1 - Method for processing a GNSS signal in order to attenuate at least one interference signal - Google Patents

Method for processing a GNSS signal in order to attenuate at least one interference signal Download PDF

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Publication number
FR3116401B1
FR3116401B1 FR2011766A FR2011766A FR3116401B1 FR 3116401 B1 FR3116401 B1 FR 3116401B1 FR 2011766 A FR2011766 A FR 2011766A FR 2011766 A FR2011766 A FR 2011766A FR 3116401 B1 FR3116401 B1 FR 3116401B1
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France
Prior art keywords
signal
satellite
attenuate
processing
sat
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Active
Application number
FR2011766A
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French (fr)
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FR3116401A1 (en
Inventor
Arnaud Lilbert
Alain Chiodini
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Safran Electronics and Defense SAS
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Safran Electronics and Defense SAS
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Priority to FR2011766A priority Critical patent/FR3116401B1/en
Publication of FR3116401A1 publication Critical patent/FR3116401A1/en
Application granted granted Critical
Publication of FR3116401B1 publication Critical patent/FR3116401B1/en
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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
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • 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
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal

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  • 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)
  • Noise Elimination (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

L’invention concerne un procédé de traitement d’un signal de radionavigation issu d’un satellite (SAT) reçu par un récepteur de radionavigation comprenant plusieurs antennes de réception, chaque antenne étant configurée pour recevoir des signaux issus d’un satellite d’intérêt (SAT) d’au moins un brouilleur et éventuellement d’au moins un autre satellite selon des directions balayées, le procédé comprenant les étapes suivantes mises œuvre dans une unité de traitement dudit récepteur : - détection à partir du signal reçu par chaque antenne, d’au moins une direction d’un signal de brouillage ; - détermination d’un jeu de coefficients de pondération ou associé au satellite (SAT) d’intérêt permettant d’atténuer le signal de brouillage reçu dans les directions ainsi déterminées et permettant d’atténuer le cas échant les signaux issus d’autres satellites de manière à optimiser le signal issu du satellite d’intérêt. Figure pour l’abrégé : Figure 2The invention relates to a method for processing a radionavigation signal from a satellite (SAT) received by a radionavigation receiver comprising several reception antennas, each antenna being configured to receive signals from a satellite of interest (SAT) of at least one jammer and possibly at least one other satellite along scanned directions, the method comprising the following steps implemented in a processing unit of said receiver: - detection from the signal received by each antenna, at least one direction of a jamming signal; - determination of a set of weighting coefficients or associated with the satellite (SAT) of interest making it possible to attenuate the interference signal received in the directions thus determined and making it possible to attenuate, if necessary, the signals coming from other satellites of so as to optimize the signal from the satellite of interest. Figure for abstract: Figure 2

FR2011766A 2020-11-19 2020-11-19 Method for processing a GNSS signal in order to attenuate at least one interference signal Active FR3116401B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2011766A FR3116401B1 (en) 2020-11-19 2020-11-19 Method for processing a GNSS signal in order to attenuate at least one interference signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2011766 2020-11-19
FR2011766A FR3116401B1 (en) 2020-11-19 2020-11-19 Method for processing a GNSS signal in order to attenuate at least one interference signal

Publications (2)

Publication Number Publication Date
FR3116401A1 FR3116401A1 (en) 2022-05-20
FR3116401B1 true FR3116401B1 (en) 2022-11-18

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FR2011766A Active FR3116401B1 (en) 2020-11-19 2020-11-19 Method for processing a GNSS signal in order to attenuate at least one interference signal

Country Status (1)

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FR (1) FR3116401B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3140182A1 (en) 2022-09-27 2024-03-29 Safran Electronics & Defense Method of assisting the landing of an aircraft

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7420509B2 (en) * 2005-08-12 2008-09-02 Itt Manufacturing Enterprises, Inc. Methods and apparatus for adaptively performing algebraic interference cancellation
US7786933B2 (en) * 2007-05-21 2010-08-31 Spatial Digital Systems, Inc. Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver
US8983420B2 (en) * 2011-08-01 2015-03-17 The United States Of America As Represented By The Secretary Of The Air Force Circular antenna array for satellite communication interference rejection
EP2669708B1 (en) * 2012-06-01 2016-09-07 Airbus DS GmbH Method of detecting a direction of arrival of at least one interference signal and system to carry out said method
CN107104720B (en) * 2017-03-01 2020-07-10 浙江大学 Mutual-prime array self-adaptive beam forming method based on covariance matrix virtual domain discretization reconstruction

Also Published As

Publication number Publication date
FR3116401A1 (en) 2022-05-20

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