BR112013019845A2 - processo de medida de frequências de emissão por meio de um interferômetro rotativo - Google Patents

processo de medida de frequências de emissão por meio de um interferômetro rotativo

Info

Publication number
BR112013019845A2
BR112013019845A2 BR112013019845A BR112013019845A BR112013019845A2 BR 112013019845 A2 BR112013019845 A2 BR 112013019845A2 BR 112013019845 A BR112013019845 A BR 112013019845A BR 112013019845 A BR112013019845 A BR 112013019845A BR 112013019845 A2 BR112013019845 A2 BR 112013019845A2
Authority
BR
Brazil
Prior art keywords
frequency
antennas
sub
transmitter
video signal
Prior art date
Application number
BR112013019845A
Other languages
English (en)
Inventor
Daniel Jahan
Pascal Cornic
Patrick Garrec
Original Assignee
Thales 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 Thales Sa filed Critical Thales Sa
Publication of BR112013019845A2 publication Critical patent/BR112013019845A2/pt

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
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/44—Monopulse radar, i.e. simultaneous lobing
    • G01S13/4454—Monopulse radar, i.e. simultaneous lobing phase comparisons monopulse, i.e. comparing the echo signals received by an interferometric antenna arrangement
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

processo de medida de frequências de emissão por meio de um interferômetro rotativo a presente invenção refere-se a um processo de medida da frequência portadora do sinal radioelétrico emitido por um emissor distante por meio de uma antena que comporta pelo menos duas subantenas de banda larga situadas no mesmo plano e cujos centros de fase são separados de um distância d. essas subantenas são associadas de modo a formar uma base de interferometria. os sinais radioelétricos recebidos pelas duas subantenas são tratadas conjuntamente para formar um sinal vídeo, caracterizando a fase existente entre os sinais radioelétricos captados por essas subantenas. mede-se a frequência do sinal vídeo e deduz-se daí a frequência portadora do sinal radioelétrico emitido pelo emissor. a medida da frequência portadora do sinal radioelétrico emitido pelo emissor é igual, a um fator de escala aproximadamente, à medida da frequência do sinal vídeo formado.
BR112013019845A 2011-02-03 2012-01-26 processo de medida de frequências de emissão por meio de um interferômetro rotativo BR112013019845A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1100337A FR2971340B1 (fr) 2011-02-03 2011-02-03 Procede de mesure de frequences d'emission au moyen d'un interferometre rotatif
PCT/EP2012/051264 WO2012104201A1 (fr) 2011-02-03 2012-01-26 Procede de mesure de frequences d'emission au moyen d'un interferometre rotatif

Publications (1)

Publication Number Publication Date
BR112013019845A2 true BR112013019845A2 (pt) 2016-10-11

Family

ID=45560893

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013019845A BR112013019845A2 (pt) 2011-02-03 2012-01-26 processo de medida de frequências de emissão por meio de um interferômetro rotativo

Country Status (4)

Country Link
EP (1) EP2671089A1 (pt)
BR (1) BR112013019845A2 (pt)
FR (1) FR2971340B1 (pt)
WO (1) WO2012104201A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971654B1 (fr) 2011-02-10 2013-03-15 Thales Sa Dispositif de reception large bande par autotransposition et application a la detection et et a la caracterisation d'emissions radioelectriques
US9188657B2 (en) 2013-12-03 2015-11-17 The Boeing Company Systems and methods of transmitter location detection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840812A (en) * 1954-08-03 1958-06-24 Giacomo Anthony J Di Frequency measurement device
US3886555A (en) * 1973-06-04 1975-05-27 Trw Inc Radiating target direction finding system
FR2269086B1 (pt) * 1974-04-26 1980-01-04 Onera (Off Nat Aerospatiale)
FR2629213B1 (fr) * 1981-07-28 1991-10-25 Onera (Off Nat Aerospatiale) Radar a balayage de phase
US5189429A (en) * 1990-10-12 1993-02-23 Westinghouse Electric Corp. Method and apparatus for ambiguity resolution in rotating interferometer
US5373236A (en) * 1993-07-01 1994-12-13 The United States Of America As Represented By The Secretary Of The Air Force Highly accurate zero crossings for frequency determination

Also Published As

Publication number Publication date
FR2971340B1 (fr) 2014-03-07
FR2971340A1 (fr) 2012-08-10
WO2012104201A1 (fr) 2012-08-09
EP2671089A1 (fr) 2013-12-11

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements
B350 Update of information on the portal [chapter 15.35 patent gazette]