FR2389141A1 - MULTI-FREQUENCY RADAR WITH SIMULTANEOUS EMISSION AND RECEPTION - Google Patents

MULTI-FREQUENCY RADAR WITH SIMULTANEOUS EMISSION AND RECEPTION

Info

Publication number
FR2389141A1
FR2389141A1 FR7812303A FR7812303A FR2389141A1 FR 2389141 A1 FR2389141 A1 FR 2389141A1 FR 7812303 A FR7812303 A FR 7812303A FR 7812303 A FR7812303 A FR 7812303A FR 2389141 A1 FR2389141 A1 FR 2389141A1
Authority
FR
France
Prior art keywords
reception
frequency radar
simultaneous emission
radars
duplexer
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
FR7812303A
Other languages
French (fr)
Other versions
FR2389141B1 (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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of FR2389141A1 publication Critical patent/FR2389141A1/en
Application granted granted Critical
Publication of FR2389141B1 publication Critical patent/FR2389141B1/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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
    • 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
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/325—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. P.S.K. signals

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)

Abstract

L'invention concerne les radars. Un radar comprend essentiellement un émetteur 10 et un récepteur 30 associés à un duplexeur 40. L'émetteur applique au duplexeur un signal continu qui est constitué par un certain nombre de fréquences qui se succèdent de façon cyclique, et le récepteur 30 accepte toutes les fréquences sauf la fréquence particulière qui est émise à l'instant considéré. Application aux radars embarqués à bord d'aéronefs.The invention relates to radars. A radar essentially comprises a transmitter 10 and a receiver 30 associated with a duplexer 40. The transmitter applies to the duplexer a continuous signal which consists of a certain number of frequencies which follow one another in a cyclical fashion, and the receiver 30 accepts all the frequencies. except the particular frequency which is transmitted at the instant considered. Application to radars on board aircraft.

FR7812303A 1977-04-27 1978-04-26 MULTI-FREQUENCY RADAR WITH SIMULTANEOUS TRANSMISSION AND RECEPTION Expired FR2389141B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79127377A 1977-04-27 1977-04-27

Publications (2)

Publication Number Publication Date
FR2389141A1 true FR2389141A1 (en) 1978-11-24
FR2389141B1 FR2389141B1 (en) 1985-03-01

Family

ID=25153195

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812303A Expired FR2389141B1 (en) 1977-04-27 1978-04-26 MULTI-FREQUENCY RADAR WITH SIMULTANEOUS TRANSMISSION AND RECEPTION

Country Status (8)

Country Link
JP (1) JPS5848073B2 (en)
DE (1) DE2817542C2 (en)
FR (1) FR2389141B1 (en)
GB (1) GB1597329A (en)
IL (1) IL54477A (en)
IT (1) IT1102000B (en)
NL (1) NL186198C (en)
SE (1) SE439994B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5936069U (en) * 1982-08-30 1984-03-06 三菱電機株式会社 PCM disk playback device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817832A (en) * 1951-02-02 1957-12-24 Robert H Mathes Multiple sweep
NL203922A (en) * 1955-01-26
US3750172A (en) * 1971-06-02 1973-07-31 Bendix Corp Multifrequency cw radar with range cutoff

Also Published As

Publication number Publication date
IT7849028A0 (en) 1978-04-24
NL186198B (en) 1990-05-01
JPS5848073B2 (en) 1983-10-26
DE2817542A1 (en) 1978-11-02
SE439994B (en) 1985-07-08
DE2817542C2 (en) 1985-02-14
GB1597329A (en) 1981-09-03
NL7804400A (en) 1978-10-31
NL186198C (en) 1990-10-01
FR2389141B1 (en) 1985-03-01
SE7804488L (en) 1978-10-28
IL54477A (en) 1980-11-30
JPS53135295A (en) 1978-11-25
IT1102000B (en) 1985-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse