GB2517659B - Radar for helicopters - Google Patents

Radar for helicopters

Info

Publication number
GB2517659B
GB2517659B GB9408634.5A GB9408634A GB2517659B GB 2517659 B GB2517659 B GB 2517659B GB 9408634 A GB9408634 A GB 9408634A GB 2517659 B GB2517659 B GB 2517659B
Authority
GB
United Kingdom
Prior art keywords
helicopters
radar
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.)
Expired - Lifetime
Application number
GB9408634.5A
Other languages
English (en)
Other versions
GB2517659A (en
GB9408634D0 (en
Inventor
Bernard Dortomb
Jean-Claude Charpentier
Jean-Claude Langot
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
Dassault Electronique 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 Dassault Electronique SA filed Critical Dassault Electronique SA
Publication of GB9408634D0 publication Critical patent/GB9408634D0/en
Anticipated expiration legal-status Critical
Publication of GB2517659A publication Critical patent/GB2517659A/en
Application granted granted Critical
Publication of GB2517659B publication Critical patent/GB2517659B/en
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
    • 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
    • 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
    • G01S7/28—Details of pulse systems
    • 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
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/53—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar
    • G01S13/532—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar using a bank of range gates or a memory matrix
    • 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]
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2883—Coherent receivers using FFT processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Glass Compositions (AREA)
  • Waveguide Aerials (AREA)
GB9408634.5A 1993-06-23 1994-04-27 Radar for helicopters Expired - Lifetime GB2517659B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9307649 1993-06-23

Publications (3)

Publication Number Publication Date
GB9408634D0 GB9408634D0 (en) 2013-12-11
GB2517659A GB2517659A (en) 2015-03-04
GB2517659B true GB2517659B (en) 2015-07-22

Family

ID=49767073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9408634.5A Expired - Lifetime GB2517659B (en) 1993-06-23 1994-04-27 Radar for helicopters

Country Status (2)

Country Link
GB (1) GB2517659B (enrdf_load_stackoverflow)
IT (1) ITTO940344A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11724818B2 (en) 2020-09-21 2023-08-15 Rockwell Collins, Inc. Phased array transmission reflected off rotor blade to target

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105589072B (zh) * 2016-01-22 2017-11-17 陕西师范大学 基于双相机阵列的合成孔径目标多视角成像方法
CN106143933A (zh) * 2016-07-18 2016-11-23 漯河亚斯达科技有限公司 直升机雷达座
CN118938147A (zh) * 2024-08-06 2024-11-12 天津云遥宇航科技有限公司 一种用于sar雷达天线机载测试的固定角度工装

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017922A (en) * 1989-07-05 1991-05-21 Messerschmitt-Bolkow-Blohm Gmbh Radar system having a synthetic aperture on the basis of rotating antennae
US5107270A (en) * 1990-06-22 1992-04-21 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for increasing a radar's range with improved scan-to-scan integration of doppler filtered signals
EP0537841A1 (en) * 1991-10-16 1993-04-21 Hollandse Signaalapparaten B.V. Apparatus for the observation and identification of helicopters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017922A (en) * 1989-07-05 1991-05-21 Messerschmitt-Bolkow-Blohm Gmbh Radar system having a synthetic aperture on the basis of rotating antennae
US5107270A (en) * 1990-06-22 1992-04-21 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for increasing a radar's range with improved scan-to-scan integration of doppler filtered signals
EP0537841A1 (en) * 1991-10-16 1993-04-21 Hollandse Signaalapparaten B.V. Apparatus for the observation and identification of helicopters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11724818B2 (en) 2020-09-21 2023-08-15 Rockwell Collins, Inc. Phased array transmission reflected off rotor blade to target

Also Published As

Publication number Publication date
ITTO940344A0 (enrdf_load_stackoverflow) 1994-04-29
ITTO940344A1 (it) 1995-10-29
GB2517659A (en) 2015-03-04
GB9408634D0 (en) 2013-12-11

Similar Documents

Publication Publication Date Title
GB2283631B (en) Radar apparatus
IL110001A0 (en) Radar system
AU5191393A (en) Transponder arrangement
AU7981294A (en) Microwave-powered aircraft
AU6112690A (en) Crate
AU7031794A (en) Aircraft
AU5519494A (en) Radar apparatus
AU629895B2 (en) Wrap-around-box for containers
AU5767590A (en) Containers
AU121271S (en) Aircraft
AU645030B2 (en) Radar arrangement
AU5893394A (en) Aircraft
ZA945844B (en) Radar apparatus
GB9301855D0 (en) Helicopters
PL309780A1 (en) Radar apparatus
GB2246679A (en) Radar
AU4592293A (en) Sport-piloting aeroplane
GB2517659B (en) Radar for helicopters
GB2279529B (en) Radar
GB9315389D0 (en) Operating aircraft
GB2504252B (en) Radar
AU3831393A (en) Radar apparatus
AU5633690A (en) Aircraft
GB2277408B (en) Radar
AU7699094A (en) Set for eating

Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20140426