GB1330925A - Secondary radar system - Google Patents

Secondary radar system

Info

Publication number
GB1330925A
GB1330925A GB3237171A GB3237171A GB1330925A GB 1330925 A GB1330925 A GB 1330925A GB 3237171 A GB3237171 A GB 3237171A GB 3237171 A GB3237171 A GB 3237171A GB 1330925 A GB1330925 A GB 1330925A
Authority
GB
United Kingdom
Prior art keywords
code
gate
address
pulse
responder
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
Application number
GB3237171A
Other languages
English (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.)
Huygens Lab Nv Christiaan
Original Assignee
Huygens Lab Nv Christiaan
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 Huygens Lab Nv Christiaan filed Critical Huygens Lab Nv Christiaan
Priority to GB1349610D priority Critical patent/GB1349610A/en
Publication of GB1330925A publication Critical patent/GB1330925A/en
Expired 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
    • G01S13/78—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)
GB3237171A 1970-03-31 1971-04-19 Secondary radar system Expired GB1330925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1349610D GB1349610A (en) 1970-03-31 1971-04-19 Photoelectrophoretic imaging apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL707010623A NL145682B (nl) 1970-07-17 1970-07-17 Secundair radarstelsel.

Publications (1)

Publication Number Publication Date
GB1330925A true GB1330925A (en) 1973-09-19

Family

ID=19810609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3237171A Expired GB1330925A (en) 1970-03-31 1971-04-19 Secondary radar system

Country Status (8)

Country Link
US (1) US3772688A (enExample)
BE (1) BE770125A (enExample)
CA (1) CA961139A (enExample)
DE (1) DE2134678C2 (enExample)
FR (1) FR2099436B1 (enExample)
GB (1) GB1330925A (enExample)
NL (1) NL145682B (enExample)
SE (1) SE365616B (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916229B2 (ja) * 1972-09-26 1984-04-13 クリスチアン ハイゲン ラボラトリウム ビ− ブイ ２局間のデ−タ転送方法及びその装置
SE413350B (sv) * 1978-08-25 1980-05-19 Stiftelsen Inst Mikrovags Anordning for synkroniserad mottagning i samband med anordning for registrering av foremal
DE3009179A1 (de) * 1980-03-11 1981-09-24 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren und vorrichtung zur erzeugung des antwortsignals einer einrichtung zur automatischen indentifizierung von objekten und/oder lebewesen
AU1612383A (en) * 1982-06-29 1984-01-05 Decca Ltd. Measuring distance
NO833570L (no) * 1983-09-30 1985-04-01 Findit As Maale- og identifiseringssystem
US5382957A (en) * 1989-12-19 1995-01-17 The United States Of America As Represented By The Secretary Of The Navy System and method
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US7268700B1 (en) 1998-01-27 2007-09-11 Hoffberg Steven M Mobile communication device
US7904187B2 (en) * 1999-02-01 2011-03-08 Hoffberg Steven M Internet appliance system and method
US8364136B2 (en) 1999-02-01 2013-01-29 Steven M Hoffberg Mobile system, a method of operating mobile system and a non-transitory computer readable medium for a programmable control of a mobile system
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
FR3075398B1 (fr) * 2017-12-19 2020-01-10 Thales Procede de mesure de diagrammes d antenne d un radar secondaire et radar secondaire mettant en oeuvre un tel procede

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3312970A (en) * 1941-06-27 1967-04-04 Rca Corp Pulse echo recognition systems
US3296615A (en) * 1942-01-19 1967-01-03 Robert M Page Identification and recognition system
US2677818A (en) * 1945-10-19 1954-05-04 Us Sec War Aircraft identification system
US2929925A (en) * 1946-01-03 1960-03-22 Marcus D O'day Transponder system responsive to simultaneous identification and object locating signals
US2595141A (en) * 1946-10-10 1952-04-29 Rca Corp Radio system for aircraft identification
GB885923A (en) * 1957-06-05 1962-01-03 Telefunken Gmbh An aircraft radio navigation system
US3122737A (en) * 1960-05-17 1964-02-25 Setrin Morton Apparatus for suppressing side-lobe interrogations in transponder beacon systems
US3153232A (en) * 1960-09-26 1964-10-13 Sierra Research Corp Station-keeping radar system
GB955380A (en) * 1961-11-16 1964-04-15 Telefunken Patent Improvements in or relating to mobile radio responding stations
DE1263872B (de) * 1963-03-09 1968-03-21 Telefunken Patent Flugueberwachungssystem mit Relais-Entfernungsmessung
US3341845A (en) * 1964-11-13 1967-09-12 Thomson Houston Comp Francaise System for automatic radio transfer of digital information and for distance computation

Also Published As

Publication number Publication date
FR2099436A1 (enExample) 1972-03-17
NL7010623A (enExample) 1972-01-19
FR2099436B1 (enExample) 1975-07-11
NL145682B (nl) 1975-04-15
DE2134678C2 (de) 1982-12-09
BE770125A (fr) 1972-01-17
US3772688A (en) 1973-11-13
DE2134678A1 (de) 1972-02-24
CA961139A (en) 1975-01-14
SE365616B (enExample) 1974-03-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee