FR3119464B1 - BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM - Google Patents

BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM Download PDF

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Publication number
FR3119464B1
FR3119464B1 FR2101072A FR2101072A FR3119464B1 FR 3119464 B1 FR3119464 B1 FR 3119464B1 FR 2101072 A FR2101072 A FR 2101072A FR 2101072 A FR2101072 A FR 2101072A FR 3119464 B1 FR3119464 B1 FR 3119464B1
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France
Prior art keywords
gnss
receiver
signals
parameters
position estimation
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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
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FR2101072A
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French (fr)
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FR3119464A1 (en
Inventor
Miquel Ribot
Adrià Gusi
Pau Closas
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Albora Technologies Ltd
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Albora Technologies Ltd
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Publication date
Application filed by Albora Technologies Ltd filed Critical Albora Technologies Ltd
Priority to FR2101072A priority Critical patent/FR3119464B1/en
Priority to GB2201417.9A priority patent/GB2605262A/en
Priority to JP2022016268A priority patent/JP2022119752A/en
Publication of FR3119464A1 publication Critical patent/FR3119464A1/en
Application granted granted Critical
Publication of FR3119464B1 publication Critical patent/FR3119464B1/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
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
    • 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
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position

Abstract

La présente invention fournit un procédé, un système et un programme informatique pour l’estimation directe de la position (DPE) améliorée par transition de bits à partir de signaux du système mondial de navigation par satellite (GNSS) et comprend la réception dans un récepteur GNSS (120) de signaux provenant de plusieurs satellites (110) différents dans plusieurs constellations de satellites adaptées pour être utilisées avec le GNSS. Le procédé estime les paramètres du récepteur GNSS (120) : position, vitesse, biais d’horloge, dérive de l’horloge et, en option et si on ne le connaît pas, l’heure du récepteur. Le procédé génère un modèle des signaux GNSS reçus qui dépend des paramètres du récepteur. De manière unique, le procédé inclut la synchronisation d’un code primaire (140A) et d’un code secondaire (140B) dans le modèle de signal GNSS (120) reçu, en plus des délais, des décalages Doppler et d’autres paramètres pertinents pour le positionnement. Enfin, si le code secondaire (140B) d’un signal particulier est inconnu, le procédé détermine la combinaison de transitions de bits qui maximise le problème d’optimisation. Figure pour l’abrégé : Fig. 1The present invention provides a method, system, and computer program program for bit transition enhanced direct position estimation (DPE) from Global Navigation Satellite System (GNSS) signals and includes receiving in a receiver GNSS (120) signals from multiple different satellites (110) in multiple satellite constellations suitable for use with GNSS. The method estimates the parameters of the GNSS receiver (120): position, speed, clock skew, clock drift and, optionally and if not known, the receiver time. The method generates a model of the received GNSS signals which depends on the parameters of the receiver. Uniquely, the method includes synchronization of a primary code (140A) and a secondary code (140B) in the received GNSS signal pattern (120), in addition to delays, Doppler shifts and other parameters relevant for positioning. Finally, if the secondary code (140B) of a particular signal is unknown, the method determines the combination of bit transitions that maximizes the optimization problem. Figure for abstract: Fig. 1

FR2101072A 2021-02-04 2021-02-04 BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM Active FR3119464B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2101072A FR3119464B1 (en) 2021-02-04 2021-02-04 BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM
GB2201417.9A GB2605262A (en) 2021-02-04 2022-02-03 Bit transition enhanced direct positioin estimation in global satellite system positioning
JP2022016268A JP2022119752A (en) 2021-02-04 2022-02-04 Bit transition enhanced direct position estimation in global satellite system positioning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2101072A FR3119464B1 (en) 2021-02-04 2021-02-04 BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM
FR2101072 2021-02-04

Publications (2)

Publication Number Publication Date
FR3119464A1 FR3119464A1 (en) 2022-08-05
FR3119464B1 true FR3119464B1 (en) 2022-12-23

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FR2101072A Active FR3119464B1 (en) 2021-02-04 2021-02-04 BIT TRANSITION ENHANCED DIRECT POSITION ESTIMATION IN THE GLOBAL POSITIONING SATELLITE SYSTEM

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JP (1) JP2022119752A (en)
FR (1) FR3119464B1 (en)
GB (1) GB2605262A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10564290B1 (en) * 2018-08-10 2020-02-18 Rockwell Collins, Inc. Systems and methods for GNSS processing to determine secondary code phase
CN109581435B (en) * 2018-12-28 2023-07-25 合肥工业大学 GNSS signal double-step captured data symbol overturn elimination method and device

Also Published As

Publication number Publication date
GB2605262A (en) 2022-09-28
FR3119464A1 (en) 2022-08-05
JP2022119752A (en) 2022-08-17
GB2605262A8 (en) 2022-10-26

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