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FR2868847A1 - Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol - Google Patents

Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol

Info

Publication number
FR2868847A1
FR2868847A1 FR0403846A FR0403846A FR2868847A1 FR 2868847 A1 FR2868847 A1 FR 2868847A1 FR 0403846 A FR0403846 A FR 0403846A FR 0403846 A FR0403846 A FR 0403846A FR 2868847 A1 FR2868847 A1 FR 2868847A1
Authority
FR
France
Prior art keywords
detectors
detection device
gain
parabolic mirror
aboard
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.)
Granted
Application number
FR0403846A
Other languages
English (en)
Other versions
FR2868847B1 (fr
Inventor
Jean Marc Goutoule
Carine Bredin
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.)
Airbus Defence and Space SAS
Original Assignee
EADS Astrium SAS
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 EADS Astrium SAS filed Critical EADS Astrium SAS
Priority to FR0403846A priority Critical patent/FR2868847B1/fr
Priority to CA002562645A priority patent/CA2562645A1/fr
Priority to US10/599,890 priority patent/US7378629B2/en
Priority to EP05753735A priority patent/EP1738196A1/fr
Priority to PCT/FR2005/000870 priority patent/WO2005103756A1/fr
Publication of FR2868847A1 publication Critical patent/FR2868847A1/fr
Application granted granted Critical
Publication of FR2868847B1 publication Critical patent/FR2868847B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G01S13/9056—Scan SAR mode

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)
  • Radiation Pyrometers (AREA)
  • Image Input (AREA)
  • Navigation (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Un dispositif de détection comprend un miroir parabolique (1) et plusieurs détecteurs de rayonnement (2-5). Les détecteurs sont positionnés dans le plan focal (O, X'-X , Y'-Y) du miroir avec des décalages respectifs selon une direction commune déterminée (Y'-Y). Le dispositif de détection comprend en outre un système de sélection relié à chacun des détecteurs (2-5), agencé pour sélectionner successivement chacun des détecteurs et pour transmettre un signal de réception issu du détecteur sélectionné. Les décalages des détecteurs (d2-d5) sont choisis de sorte qu'un diagramme de gain de réception du dispositif présente, entre deux maxima de gain successifs dans ledit diagramme et correspondant respectivement à l'un des détecteurs, un minimum de gain inférieur de moins de 3,0 dB à chacun desdits maxima de gain. Un tel dispositif de détection permet de balayer une zone selon plusieurs sous-fauchées juxtaposées à partir d'un engin de survol de ladite zone.
FR0403846A 2004-04-13 2004-04-13 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol Expired - Lifetime FR2868847B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0403846A FR2868847B1 (fr) 2004-04-13 2004-04-13 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol
CA002562645A CA2562645A1 (fr) 2004-04-13 2005-04-11 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol
US10/599,890 US7378629B2 (en) 2004-04-13 2005-04-11 Detection device comprising a parabolic mirror and use of said device in an overflight machine
EP05753735A EP1738196A1 (fr) 2004-04-13 2005-04-11 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol
PCT/FR2005/000870 WO2005103756A1 (fr) 2004-04-13 2005-04-11 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0403846A FR2868847B1 (fr) 2004-04-13 2004-04-13 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol

Publications (2)

Publication Number Publication Date
FR2868847A1 true FR2868847A1 (fr) 2005-10-14
FR2868847B1 FR2868847B1 (fr) 2008-12-26

Family

ID=34947332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0403846A Expired - Lifetime FR2868847B1 (fr) 2004-04-13 2004-04-13 Dispositif de detection comprenant un miroir parabolique, et utilisation d'un tel dispositif a bord d'un engin de survol

Country Status (5)

Country Link
US (1) US7378629B2 (fr)
EP (1) EP1738196A1 (fr)
CA (1) CA2562645A1 (fr)
FR (1) FR2868847B1 (fr)
WO (1) WO2005103756A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL196102A (en) 2008-12-22 2016-09-29 Rafael Advanced Defense Systems Ltd Laser beam consolidation
US8558734B1 (en) * 2009-07-22 2013-10-15 Gregory Hubert Piesinger Three dimensional radar antenna method and apparatus
WO2013011023A1 (fr) 2011-07-20 2013-01-24 Deutsches Zentrum für Luft- und Raumfahrt e.V. Antenne à réflecteur pour un radar à ouverture synthétique
KR20140091342A (ko) 2013-01-11 2014-07-21 삼성테크윈 주식회사 전방향 스캔 레이다 및 전방향 레이저 스캐닝 방법
US11262446B2 (en) 2019-02-22 2022-03-01 Eagle Technology, Llc Multi-channel split-swath (MCSS) synthetic aperture radar (SAR)
US11360209B2 (en) 2019-05-03 2022-06-14 Eagle Technology, Llc Multiple beam antenna for wide swath satellite based SAR
FR3119027B1 (fr) * 2021-01-19 2022-12-30 Thales Sa Radar à antenne active à couverture angulaire élargie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638956A1 (fr) * 1993-08-04 1995-02-15 Alcatel Espace Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite
US20020008669A1 (en) * 1999-11-12 2002-01-24 Muhlhauser Nicholas L. Reflective antenna system with increased focal length

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6707052B1 (en) * 1963-02-07 2004-03-16 Norman R. Wild Infrared deception countermeasure system
EP0507440A1 (fr) * 1991-02-25 1992-10-07 Gerald Alexander Bayne Antenne
US5350911A (en) * 1993-04-09 1994-09-27 Hughes Aircraft Company Wavefront error estimation derived from observation of arbitrary unknown extended scenes
US5373151A (en) * 1993-10-04 1994-12-13 Raytheon Company Optical system including focal plane array compensation technique for focusing and periodically defocusing a beam
US6295034B1 (en) * 2000-02-25 2001-09-25 Raytheon Company Common aperture reflector antenna with improved feed design
US6606066B1 (en) * 2001-10-29 2003-08-12 Northrop Grumman Corporation Tri-mode seeker
US7471255B2 (en) * 2005-06-23 2008-12-30 The Regents Of The University Of California Antenna with reduced interference

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0638956A1 (fr) * 1993-08-04 1995-02-15 Alcatel Espace Antenne active à balayage électronique en azimut et en élévation, en particulier pour l'imagerie hyperfréquence par satellite
US20020008669A1 (en) * 1999-11-12 2002-01-24 Muhlhauser Nicholas L. Reflective antenna system with increased focal length

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
MARTINS-CAMELO L ET AL: "Reflector antenna with switchable shaped beams for a space-based SAR", AP-S INTERNATIONAL SYMPOSIUM 1985: ANTENNAS AND PROPAGATION. SYMPOSIUM DIGEST (CAT. NO.85CH2128-7) IEEE NEW YORK, NY, USA, 1985, pages 145 - 148 vol.1, XP002302913 *
RANEY R K ET AL: "RADARSAT", PROCEEDINGS OF THE IEEE, IEEE. NEW YORK, US, vol. 79, no. 6, 1 June 1991 (1991-06-01), pages 839 - 849, XP000262357, ISSN: 0018-9219 *
ROTT H ET AL: "Snowsat - a Ku--band SAR mission for climate research and hydrology", IGARSS 2003. IEEE 2003 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM. PROCEEDINGS. TOULOUSE, FRANCE, JULY 21 - 25, 2003, IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, NEW YORK, NY : IEEE, US, vol. VOL 7 OF 7, 21 July 2003 (2003-07-21), pages 1901 - 1903, XP010705224, ISBN: 0-7803-7929-2 *

Also Published As

Publication number Publication date
US7378629B2 (en) 2008-05-27
WO2005103756A1 (fr) 2005-11-03
CA2562645A1 (fr) 2005-11-03
FR2868847B1 (fr) 2008-12-26
EP1738196A1 (fr) 2007-01-03
US20070194977A1 (en) 2007-08-23

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