[go: up one dir, main page]

ES2657860T3 - Procedimiento de posicionamiento de un móvil en una imagen de radar - Google Patents

Procedimiento de posicionamiento de un móvil en una imagen de radar Download PDF

Info

Publication number
ES2657860T3
ES2657860T3 ES12708114.9T ES12708114T ES2657860T3 ES 2657860 T3 ES2657860 T3 ES 2657860T3 ES 12708114 T ES12708114 T ES 12708114T ES 2657860 T3 ES2657860 T3 ES 2657860T3
Authority
ES
Spain
Prior art keywords
radar
image
phase difference
stage
calculation
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
ES12708114.9T
Other languages
English (en)
Inventor
Luc Bosser
Vincent HOTTIER
Didier LE FOLL
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
Application granted granted Critical
Publication of ES2657860T3 publication Critical patent/ES2657860T3/es
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
    • G01S13/9023—SAR image post-processing techniques combined with interferometric techniques
    • 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
    • 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
    • G01S13/904—SAR modes
    • G01S13/9089—SAR having an irregular aperture
    • 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
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured

Landscapes

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

Abstract

Procedimiento de posicionamiento de un objetivo móvil en una imagen de radar que representa los ecos de reflectividad de una zona iluminada por un haz de radar, estando dicho radar instalado en un portador móvil, comprendiendo dicho procedimiento al menos las siguientes etapas: - una primera etapa (300) de adquisición de dos imágenes de radar de manera simultánea, representando una imagen de radar el nivel de reflectividad y la fase de los reflectores posicionados en la zona iluminada en función de su distancia en relación con las vías de recepción y de su frecuencia Doppler, adquiriéndose la primera y la segunda imágenes de radar respectivamente en una primera (A) y una segunda vía (B) de recepción en azimut del radar, - una segunda etapa (306) de cálculo, ejecutada sobre la base de la primera y de la segunda imágenes de radar, de una tabla de correspondencia que relaciona para una distancia dada una medida de una diferencia de fase entre las dos vías de recepción con una posición en dichas imágenes de radar, - una tercera etapa (301) de suministro de un objetivo móvil presente en la primera y segunda imágenes de radar y definido al menos por su distancia en relación con las vías de recepción y su frecuencia Doppler. - una cuarta etapa (302) de cálculo, ejecutada sobre la base de la primera y de la segunda imágenes de radar, para el objetivo móvil, de la diferencia de fase entre la primera y la segunda imágenes de radar y de la distancia en relación con las vías de recepción, - una quinta etapa (308) de posicionamiento del objetivo móvil en la imagen de radar en la posición del píxel definido, en la tabla de correspondencia, por la misma diferencia de fase y la misma distancia de reflector que dicho objetivo móvil, caracterizado porque dicha segunda etapa (306) de cálculo comprende las siguientes subetapas: - Cálculo (3061) de una primera imagen que representa una diferencia de fase medida entre la primera y segunda vías de recepción en función de los datos de distancia y Doppler des los reflectores, - Cálculo (3062) de una segunda imagen que representa una diferencia de fase teórica a partir de la geometría de adquisición y de las características de las vías de recepción, - Cálculo (3063) de una tercera imagen que representa el erro residual de diferencia de fase entre dicha primera imagen y dicha segunda imagen, - Estimación paramétrica del error residual de diferencia de fase, mediante la entrega (3064) en fase de los ecos de los reflectores en esta tercera imagen.

Description

imagen1
imagen2
imagen3
imagen4
imagen5
imagen6
imagen7
imagen8

Claims (1)

  1. imagen1
ES12708114.9T 2011-03-03 2012-03-01 Procedimiento de posicionamiento de un móvil en una imagen de radar Active ES2657860T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1100645A FR2972267B1 (fr) 2011-03-03 2011-03-03 Procede de positionnement d'un mobile sur une image radar
FR1100645 2011-03-03
PCT/EP2012/053580 WO2012117080A1 (fr) 2011-03-03 2012-03-01 Procede de positionnement d'un mobile sur une image radar

Publications (1)

Publication Number Publication Date
ES2657860T3 true ES2657860T3 (es) 2018-03-07

Family

ID=45814490

Family Applications (1)

Application Number Title Priority Date Filing Date
ES12708114.9T Active ES2657860T3 (es) 2011-03-03 2012-03-01 Procedimiento de posicionamiento de un móvil en una imagen de radar

Country Status (5)

Country Link
EP (1) EP2681579B1 (es)
BR (1) BR112013022146A2 (es)
ES (1) ES2657860T3 (es)
FR (1) FR2972267B1 (es)
WO (1) WO2012117080A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115656948B (zh) * 2022-12-28 2023-04-07 中国科学院空天信息创新研究院 基于静止强目标的相位误差估计方法、装置、设备及介质

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100372A (en) * 1979-12-28 1981-08-12 Ibm Movinggtarget detector

Also Published As

Publication number Publication date
FR2972267A1 (fr) 2012-09-07
BR112013022146A2 (pt) 2016-12-06
EP2681579A1 (fr) 2014-01-08
FR2972267B1 (fr) 2014-10-10
EP2681579B1 (fr) 2017-08-16
WO2012117080A1 (fr) 2012-09-07

Similar Documents

Publication Publication Date Title
ES2613592T3 (es) Procedimiento y dispositivo para determinar la posición y la orientación de un transmisor móvil
WO2018080609A3 (en) Mobile radar for visualizing topography
ES2568226T3 (es) Posicionador de antena parabólica
BR112017003997A2 (pt) localização de posição indoor usando refletores direcionais de varredura retardados
EP2728377A3 (en) Modulated laser range finder and method
GB201318054D0 (en) Automatic measurement of dimensional data with a laser tracker
WO2009016551A8 (en) Vehicle positioning measurement system and method
GB2505353A (en) Gimbal instrument having a prealigned and replaceable optics bench
EP2708916A3 (en) Distance Measurement Apparatus
WO2014081773A8 (en) Low drift reference for laser radar
WO2013106636A3 (en) Geolocation
WO2014081043A3 (en) Optical pointing system
GB2477902A (en) Device and method for measuring six degrees of freedom
WO2013019322A3 (en) Differential phase contrast x-ray imaging system and components
WO2012100213A3 (en) Systems and methods for complex conjugate artifact resolved optical coherence tomography
ES2693237T3 (es) Aparato de radar de apertura sintética y método para la producción de imágenes de radar de apertura sintética de objetos en movimiento
SE0500941L (sv) Survey system
WO2016154232A3 (en) Pharmaceutical tetracycline composition for dermatological use
BR112014006481A2 (pt) dispositivo de iluminação
BR112015008132A2 (pt) sistema de eletromagnético de calibragem
ES2657860T3 (es) Procedimiento de posicionamiento de un móvil en una imagen de radar
WO2014189570A3 (en) Compensating for a non-ideal surface of a reflector in a satellite communication system
EP3788676C0 (en) A radar system comprising two back-to-back positioned radar antenna modules
ES2542080T3 (es) Sistema catalizador para la polimerización de olefinas
WO2016003516A3 (en) Radio frequency localization