FR3117290B1 - Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices. - Google Patents

Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices. Download PDF

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Publication number
FR3117290B1
FR3117290B1 FR2012864A FR2012864A FR3117290B1 FR 3117290 B1 FR3117290 B1 FR 3117290B1 FR 2012864 A FR2012864 A FR 2012864A FR 2012864 A FR2012864 A FR 2012864A FR 3117290 B1 FR3117290 B1 FR 3117290B1
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FR
France
Prior art keywords
signal
chirp
generating
demodulating
modulation
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
FR2012864A
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French (fr)
Other versions
FR3117290A1 (en
Inventor
Guillaume Ferre
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.)
Centre National de la Recherche Scientifique CNRS
Universite de Bordeaux
Institut Polytechnique de Bordeaux
Original Assignee
Centre National de la Recherche Scientifique CNRS
Universite de Bordeaux
Institut Polytechnique de Bordeaux
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 Centre National de la Recherche Scientifique CNRS, Universite de Bordeaux, Institut Polytechnique de Bordeaux filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR2012864A priority Critical patent/FR3117290B1/en
Priority to PCT/EP2021/084578 priority patent/WO2022122726A1/en
Publication of FR3117290A1 publication Critical patent/FR3117290A1/en
Application granted granted Critical
Publication of FR3117290B1 publication Critical patent/FR3117290B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/103—Chirp modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0614—Systems characterised by the synchronising information used the synchronising signal being characterised by the amplitude, duration or polarity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2075—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the change in carrier phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Procédé de génération et de démodulation d’un signal comprenant au moins un chirp, produits programme d’ordinateur et dispositifs correspondants L'invention concerne un procédé de génération d’un signal comprenant une première portion véhiculant des données et une deuxième portion véhiculant un mot de synchronisation du signal. La première portion comprend un ou plusieurs chirps modulés. La modulation correspond à une permutation circulaire du motif de variation de la fréquence instantanée d’un chirp de base sur le temps symbole Ts. Un tel procédé comprend : - une génération (E310) de la première portion du signal comprenant, pour la génération d’un chirp donné parmi le ou les chirps modulés, une modulation du chirp de base en fonction d’un symbole de modulation donné correspondant générant le chirp donné ; et - une génération (E320) de la deuxième portion du signal comprenant une modulation en amplitude de la deuxième portion du signal, une amplitude instantanée de la deuxième portion du signal étant proportionnelle à un module du mot de synchronisation. FIGURE D’ABRÉGÉ : Fig.3Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices The invention relates to a method for generating a signal comprising a first portion carrying data and a second portion carrying a word signal synchronization. The first portion includes one or more modulated chirps. The modulation corresponds to a circular permutation of the variation pattern of the instantaneous frequency of a basic chirp on the symbol time Ts. Such a method comprises: - a generation (E310) of the first portion of the signal comprising, for the generation of a given chirp among the modulated chirps, a modulation of the basic chirp according to a corresponding given modulation symbol generating the given chirp; and - a generation (E320) of the second portion of the signal comprising an amplitude modulation of the second portion of the signal, an instantaneous amplitude of the second portion of the signal being proportional to a module of the synchronization word. ABRIDGED FIGURE: Fig.3

FR2012864A 2020-12-08 2020-12-08 Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices. Active FR3117290B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2012864A FR3117290B1 (en) 2020-12-08 2020-12-08 Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices.
PCT/EP2021/084578 WO2022122726A1 (en) 2020-12-08 2021-12-07 Method for generating and demodulating a signal comprising at least one chirp, corresponding computer program products and corresponding devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2012864A FR3117290B1 (en) 2020-12-08 2020-12-08 Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices.
FR2012864 2020-12-08

Publications (2)

Publication Number Publication Date
FR3117290A1 FR3117290A1 (en) 2022-06-10
FR3117290B1 true FR3117290B1 (en) 2022-11-25

Family

ID=75108450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2012864A Active FR3117290B1 (en) 2020-12-08 2020-12-08 Method for generating and demodulating a signal comprising at least one chirp, computer program products and corresponding devices.

Country Status (2)

Country Link
FR (1) FR3117290B1 (en)
WO (1) WO2022122726A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2278724A1 (en) 2009-07-02 2011-01-26 Nanoscale Labs Communications system
FR3052615B1 (en) * 2016-06-09 2019-11-01 B-Com METHOD OF DEMODULATING A RECEIVED SIGNAL, COMPUTER PROGRAM PRODUCT AND CORRESPONDING DEVICE

Also Published As

Publication number Publication date
WO2022122726A1 (en) 2022-06-16
FR3117290A1 (en) 2022-06-10

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