FR2939205B1 - METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA - Google Patents

METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA

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Publication number
FR2939205B1
FR2939205B1 FR0806700A FR0806700A FR2939205B1 FR 2939205 B1 FR2939205 B1 FR 2939205B1 FR 0806700 A FR0806700 A FR 0806700A FR 0806700 A FR0806700 A FR 0806700A FR 2939205 B1 FR2939205 B1 FR 2939205B1
Authority
FR
France
Prior art keywords
values
law
variation
variable
distance
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
FR0806700A
Other languages
French (fr)
Other versions
FR2939205A1 (en
Inventor
Alain Becker
Thierry Sfez
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 FR0806700A priority Critical patent/FR2939205B1/en
Publication of FR2939205A1 publication Critical patent/FR2939205A1/en
Application granted granted Critical
Publication of FR2939205B1 publication Critical patent/FR2939205B1/en
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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
    • G01S13/9021—SAR image post-processing techniques
    • G01S13/9029—SAR image post-processing techniques specially adapted for moving target detection within a single SAR image or within multiple SAR images taken at the same time

Landscapes

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

Abstract

L'invention vise un procédé de traitement d'une série d'images radar représentant une zone donnée, comprenant une analyse de la trajectoire d'au moins un point brillant représentatif d'un objet mobile présent au sein de ladite zone, la trajectoire étant définie à l'aide d'une variable distance et d'une variable vitesse, l'analyse comprenant pour chaque point brillant considéré, une estimation (1) des valeurs desdites variables, et une interpolation (2) desdites valeurs estimées. L'interpolation (2) comporte: une détermination (21) de la loi de variation des valeurs des variables distance et vitesse, à l'aide d'une fonction choisie ; une dérivation (22) de ladite loi de variation des valeurs de la variable distance en fonction du temps ; une intégration (22) de ladite loi de variation des valeurs de la variable vitesse en fonction du temps, et ; pour chaque série d'images, une élaboration (23) de la courbe représentative de l'évolution de la valeur de la variable distance à partir de la loi de variation des valeurs de la variable distance et/ou des intégrales de la loi de variation de la variable vitesse, et de la courbe représentative de l'évolution de la variable vitesse à partir de la loi de variation des valeurs de la variable vitesse et/ou de la dérivée de la loi de variation des valeurs de la variable distance, ladite élaboration étant effectuée en fonction de l'erreur d'estimation associée à chacune desdites valeurs possibles.The invention relates to a method of processing a series of radar images representing a given zone, comprising an analysis of the trajectory of at least one bright point representative of a mobile object present within said zone, the trajectory being defined using a distance variable and a speed variable, the analysis comprising, for each bright point considered, an estimate (1) of the values of said variables, and an interpolation (2) of said estimated values. The interpolation (2) comprises: a determination (21) of the law of variation of the values of the distance and speed variables, using a chosen function; a derivation (22) of said law of variation of the values of the distance variable as a function of time; an integration (22) of said law of variation of the values of the speed variable as a function of time, and; for each series of images, an elaboration (23) of the curve representative of the evolution of the value of the distance variable from the law of variation of the values of the distance variable and / or of the integrals of the law of variation of the speed variable, and of the curve representative of the evolution of the speed variable from the law of variation of the values of the speed variable and / or of the derivative of the law of variation of the values of the distance variable, said elaboration being carried out as a function of the estimation error associated with each of said possible values.

FR0806700A 2008-11-28 2008-11-28 METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA Active FR2939205B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0806700A FR2939205B1 (en) 2008-11-28 2008-11-28 METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0806700A FR2939205B1 (en) 2008-11-28 2008-11-28 METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA

Publications (2)

Publication Number Publication Date
FR2939205A1 FR2939205A1 (en) 2010-06-04
FR2939205B1 true FR2939205B1 (en) 2010-12-31

Family

ID=40673183

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0806700A Active FR2939205B1 (en) 2008-11-28 2008-11-28 METHOD OF PROCESSING A SERIES OF RADAR IMAGES REPRESENTING A DATA AREA

Country Status (1)

Country Link
FR (1) FR2939205B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400306B1 (en) * 1999-12-17 2002-06-04 Sicom Systems, Ltd Multi-channel moving target radar detection and imaging apparatus and method
DE602006013113D1 (en) * 2006-07-07 2010-05-06 Selex Galileo Spa Method and device for detecting moving objects by means of SAR images
US7705768B2 (en) * 2007-05-07 2010-04-27 Pasco Corporation Radar image processor and method of radar image processing

Also Published As

Publication number Publication date
FR2939205A1 (en) 2010-06-04

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