GB2003357A - A mapping radar - Google Patents

A mapping radar

Info

Publication number
GB2003357A
GB2003357A GB7833731A GB7833731A GB2003357A GB 2003357 A GB2003357 A GB 2003357A GB 7833731 A GB7833731 A GB 7833731A GB 7833731 A GB7833731 A GB 7833731A GB 2003357 A GB2003357 A GB 2003357A
Authority
GB
United Kingdom
Prior art keywords
antenna
mapping radar
rotary movement
mapping
signal
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
GB7833731A
Other versions
GB2003357B (en
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
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB2003357A publication Critical patent/GB2003357A/en
Application granted granted Critical
Publication of GB2003357B publication Critical patent/GB2003357B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • 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
    • G01S13/9082—Rotating SAR [ROSAR]

Landscapes

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

Abstract

The invention relates to a mapping radar particularly for helicopters. A mapping radar is provided with a rotary antenna(s) subject to a circular rotary movement which is preferably arranged at the free end of one of the rotor blades of a helicopter. A transmission/reception unit (Tx/Rx) is coupled to the antenna. The reception signals are demodulated and then correlated in a correlator (50) by a synthetic signal which is obtained by means (70) for phase-modulating a signal of constant amplitude in accordance with the rotary movement of the antenna(s). <IMAGE>
GB7833731A 1977-08-19 1978-08-17 Mapping radar Expired GB2003357B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7725427A FR2400714A1 (en) 1977-08-19 1977-08-19 MAPPING RADAR

Publications (2)

Publication Number Publication Date
GB2003357A true GB2003357A (en) 1979-03-07
GB2003357B GB2003357B (en) 1982-03-10

Family

ID=9194642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833731A Expired GB2003357B (en) 1977-08-19 1978-08-17 Mapping radar

Country Status (4)

Country Link
DE (1) DE2835932C2 (en)
FR (1) FR2400714A1 (en)
GB (1) GB2003357B (en)
IT (1) IT1105766B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148649A (en) * 1983-09-29 1985-05-30 Raytheon Co Continuous wave radar with ranging capability
EP0757259A1 (en) * 1995-08-04 1997-02-05 Daimler-Benz Aerospace Aktiengesellschaft Device for movement error compensation in a radar with synthetic aperture based on rotating antennas (ROSAR) in a helicopter
CN111268094A (en) * 2020-02-27 2020-06-12 成都飞机工业（集团）有限责任公司 Four-blade circularly polarized antenna propeller

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236209A1 (en) * 1982-09-30 1984-04-05 Fried. Krupp Gmbh, 4300 Essen ACOUSTIC UNDERWATER ANTENNA WITH SYNTHETIC APERTURE
FR2624981B1 (en) * 1987-12-22 1991-01-18 Onera (Off Nat Aerospatiale) RADIONAVIGATION DEVICE AND METHOD FOR A TURNING AIRCRAFT
DE3922086C1 (en) * 1989-07-05 1990-10-18 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De
EP0582364A1 (en) * 1992-08-05 1994-02-09 International Business Machines Corporation HF antenna for a helicopter
DE4242532C2 (en) * 1992-12-16 1995-10-26 Daimler Benz Aerospace Ag Radar device with synthetic aperture based on rotating antennas
DE102006006962A1 (en) * 2006-02-14 2007-08-16 Smiths Heimann Gmbh Method and device for the high-resolution imaging of test objects by means of electromagnetic waves, in particular for checking persons for suspicious objects
DE102006037898B3 (en) * 2006-08-11 2008-03-27 Eads Deutschland Gmbh Radar device for rotary-wing aircraft i.e. helicopter, has base with outer contour optimized with respect to aerodynamic characteristics of point of rotor blades and set of antenna units, where each unit has out antenna control unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074097B (en) * 1960-01-28 Telefunken G.M.B.H., Berlin Arrangement for eliminating the polarization changes occurring in a high-frequency transmission system for circular or elliptically polarized waves
US3389393A (en) * 1966-02-18 1968-06-18 Lockheed Aircraft Corp Low profile broadband microwave antenna system
DE1289891C2 (en) * 1966-10-21 1969-10-16 Telefunken Patent Antenna arrangement via a Doppler radio beacon or a Doppler direction finder of a helicopter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148649A (en) * 1983-09-29 1985-05-30 Raytheon Co Continuous wave radar with ranging capability
EP0757259A1 (en) * 1995-08-04 1997-02-05 Daimler-Benz Aerospace Aktiengesellschaft Device for movement error compensation in a radar with synthetic aperture based on rotating antennas (ROSAR) in a helicopter
CN111268094A (en) * 2020-02-27 2020-06-12 成都飞机工业（集团）有限责任公司 Four-blade circularly polarized antenna propeller

Also Published As

Publication number Publication date
GB2003357B (en) 1982-03-10
IT7850770A0 (en) 1978-08-18
DE2835932A1 (en) 1979-02-22
DE2835932C2 (en) 1983-10-13
IT1105766B (en) 1985-11-04
FR2400714A1 (en) 1979-03-16
FR2400714B1 (en) 1982-02-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee