GB8704529D0 - Radar systems - Google Patents

Radar systems

Info

Publication number
GB8704529D0
GB8704529D0 GB878704529A GB8704529A GB8704529D0 GB 8704529 D0 GB8704529 D0 GB 8704529D0 GB 878704529 A GB878704529 A GB 878704529A GB 8704529 A GB8704529 A GB 8704529A GB 8704529 D0 GB8704529 D0 GB 8704529D0
Authority
GB
United Kingdom
Prior art keywords
radar systems
radar
systems
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
GB878704529A
Other versions
GB2203313A (en
GB2203313B (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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of GB8704529D0 publication Critical patent/GB8704529D0/en
Publication of GB2203313A publication Critical patent/GB2203313A/en
Application granted granted Critical
Publication of GB2203313B publication Critical patent/GB2203313B/en
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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/767—Responders; Transponders
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB8704529A 1987-01-03 1987-02-26 Radar surveillance of transponders Expired - Lifetime GB2203313B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878700050A GB8700050D0 (en) 1987-01-03 1987-01-03 Security systems

Publications (3)

Publication Number Publication Date
GB8704529D0 true GB8704529D0 (en) 1987-07-08
GB2203313A GB2203313A (en) 1988-10-12
GB2203313B GB2203313B (en) 1991-02-06

Family

ID=10610236

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878700050A Pending GB8700050D0 (en) 1987-01-03 1987-01-03 Security systems
GB8704529A Expired - Lifetime GB2203313B (en) 1987-01-03 1987-02-26 Radar surveillance of transponders

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878700050A Pending GB8700050D0 (en) 1987-01-03 1987-01-03 Security systems

Country Status (1)

Country Link
GB (2) GB8700050D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9013349D0 (en) * 1990-06-14 1990-10-17 Marconi Gec Ltd Transponder system
FR2669481B1 (en) * 1990-11-16 1994-04-15 Thomson Composants Microondes ELECTROMAGNETIC WAVE DATA EXCHANGE SYSTEM.
ES2070662B1 (en) * 1992-02-06 1996-11-16 Sanchez Luis Ignacio Zumarraga PERSONAL SECURITY SYSTEM FOR NAVIGATION.
JPH07509793A (en) * 1992-05-11 1995-10-26 サーブ　スカニア　コンビテック　アクティボラグ Device for detection and information transfer
EP0777890B1 (en) * 1994-08-25 2005-01-19 Geefield Pty. Ltd. Method for providing identification
DE19704328A1 (en) * 1997-02-05 1998-08-06 Bayerische Motoren Werke Ag Device for detecting the existence of vehicle parts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1213485A (en) * 1967-12-09 1970-11-25 Plessey Co Ltd Improvements in or relating to wagon identification systems
NL162494C (en) * 1973-02-28 1980-05-16 Philips Nv DEVICE FOR IDENTIFYING VEHICLES.
GB1567750A (en) * 1975-09-19 1980-05-21 Seldown Electronics Ltd Transponders
WO1980002877A1 (en) * 1979-06-14 1980-12-24 Fairfield Ind Inc Seismic gathering radio system
DK553081A (en) * 1981-12-14 1983-06-15 Data Dane As ELECTRICAL COMMUNICATION SYSTEM

Also Published As

Publication number Publication date
GB2203313A (en) 1988-10-12
GB8700050D0 (en) 1987-07-08
GB2203313B (en) 1991-02-06

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Legal Events

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

Effective date: 20040226