FR2998973B1 - Procede de determination des caracteristiques d un signal radar en presence d interferences - Google Patents

Procede de determination des caracteristiques d un signal radar en presence d interferences

Info

Publication number
FR2998973B1
FR2998973B1 FR1203239A FR1203239A FR2998973B1 FR 2998973 B1 FR2998973 B1 FR 2998973B1 FR 1203239 A FR1203239 A FR 1203239A FR 1203239 A FR1203239 A FR 1203239A FR 2998973 B1 FR2998973 B1 FR 2998973B1
Authority
FR
France
Prior art keywords
pulses
prim
repetition period
determining
interference
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
FR1203239A
Other languages
English (en)
Other versions
FR2998973A1 (fr
Inventor
Jean Pierre Dubost
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.)
Thales SA
Original Assignee
Thales 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 Thales SA filed Critical Thales SA
Priority to FR1203239A priority Critical patent/FR2998973B1/fr
Publication of FR2998973A1 publication Critical patent/FR2998973A1/fr
Application granted granted Critical
Publication of FR2998973B1 publication Critical patent/FR2998973B1/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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/021—Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/38—Jamming means, e.g. producing false echoes
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Procédé de détermination des caractéristiques d'un signal comprenant une pluralité d'impulsions, consistant à déterminer au moins la période de répétition des impulsions (PRI) et comportant les étapes: - Calculer (302) la période de répétition moyenne PRIm des impulsions en présence d'interférences, - Calculer (303) l'écart type ΔPRIm de la période de répétition moyenne PRIm des impulsions en présence d'interférences, - Définir (304) un domaine d'agilité [PRImin ; PRImax] de la période de répétition des impulsions (PRI) de la façon suivante PRImin = (PRIm + k.ΔPRIm)/√α et PRImax = √α.(PRIm - k.ΔPRIm), avec α un facteur d'excursion strictement positif et inférieur ou égal à 2 et k un nombre strictement positif, - Calculer (305) les différences de temps d'arrivée (DTOA) entre deux fronts avants ou deux fronts arrières de deux impulsions successivement reçues, - - Eliminer (306) les valeurs des différences de temps d'arrivée qui sont hors du domaine d'agilité [PRImin ; PRImax].
FR1203239A 2012-11-30 2012-11-30 Procede de determination des caracteristiques d un signal radar en presence d interferences Active FR2998973B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1203239A FR2998973B1 (fr) 2012-11-30 2012-11-30 Procede de determination des caracteristiques d un signal radar en presence d interferences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203239A FR2998973B1 (fr) 2012-11-30 2012-11-30 Procede de determination des caracteristiques d un signal radar en presence d interferences

Publications (2)

Publication Number Publication Date
FR2998973A1 FR2998973A1 (fr) 2014-06-06
FR2998973B1 true FR2998973B1 (fr) 2015-01-23

Family

ID=49448198

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1203239A Active FR2998973B1 (fr) 2012-11-30 2012-11-30 Procede de determination des caracteristiques d un signal radar en presence d interferences

Country Status (1)

Country Link
FR (1) FR2998973B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI574029B (zh) * 2014-11-21 2017-03-11 專家科技有限公司 測距方法、測距裝置、定位裝置與定位方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3744691C2 (de) * 1986-08-29 2002-03-07 Alenia Marconi Systems Ltd Verfahren und Gerät zur Bewertung von Radarzielimpulsen
WO2004092763A2 (fr) * 2003-04-08 2004-10-28 Globespanvirata, Inc. Detecteur de radars a valideur de periodicite pour periodes multiples

Also Published As

Publication number Publication date
FR2998973A1 (fr) 2014-06-06

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