IT1177573B - Dispositivo modulatore a ferrite per impianto di inseguimento a radiofaro - Google Patents

Dispositivo modulatore a ferrite per impianto di inseguimento a radiofaro

Info

Publication number
IT1177573B
IT1177573B IT47742/84A IT4774284A IT1177573B IT 1177573 B IT1177573 B IT 1177573B IT 47742/84 A IT47742/84 A IT 47742/84A IT 4774284 A IT4774284 A IT 4774284A IT 1177573 B IT1177573 B IT 1177573B
Authority
IT
Italy
Prior art keywords
headlight
radio
tracking system
modulator device
ferrite modulator
Prior art date
Application number
IT47742/84A
Other languages
English (en)
Other versions
IT8447742A1 (it
IT8447742A0 (it
Inventor
Thomas Hudspeth
Harold A Rosen
Fritz Steinberg
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 IT8447742A0 publication Critical patent/IT8447742A0/it
Publication of IT8447742A1 publication Critical patent/IT8447742A1/it
Application granted granted Critical
Publication of IT1177573B publication Critical patent/IT1177573B/it

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
    • 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
    • G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
    • G01S3/32—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics derived from different combinations of signals from separate antennas, e.g. comparing sum with difference
    • G01S3/325—Automatic tracking systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J99/00—Subject matter not provided for in other groups of this subclass

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
IT47742/84A 1983-02-25 1984-02-23 Dispositivo modulatore a ferrite per impianto di inseguimento a radiofaro IT1177573B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/469,870 US4539681A (en) 1983-02-25 1983-02-25 Ferrite modulator assembly for beacon tracking system

Publications (3)

Publication Number Publication Date
IT8447742A0 IT8447742A0 (it) 1984-02-23
IT8447742A1 IT8447742A1 (it) 1985-08-23
IT1177573B true IT1177573B (it) 1987-08-26

Family

ID=23865368

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47742/84A IT1177573B (it) 1983-02-25 1984-02-23 Dispositivo modulatore a ferrite per impianto di inseguimento a radiofaro

Country Status (7)

Country Link
US (1) US4539681A (it)
EP (1) EP0137828B1 (it)
JP (1) JPS60500586A (it)
CA (1) CA1208713A (it)
DE (1) DE3379595D1 (it)
IT (1) IT1177573B (it)
WO (1) WO1984003360A1 (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519528A1 (de) * 1985-05-31 1986-12-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum erzeugen eines steuersignals zur polarisationsausrichtung einer antenne
DE3519529A1 (de) * 1985-05-31 1986-12-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren zum erzeugen von antennennachfuehrsignalen
GB8820097D0 (en) * 1988-08-24 1988-09-28 Racal Mesl Ltd Radio signal polarising arrangements
US5196849A (en) * 1992-01-31 1993-03-23 International Business Machines Corporation Method and apparatus for implementing PRML codes with maximum ones
DE4236886C2 (de) * 1992-10-31 1997-11-20 Klocke Verpackungs Service Behälter zur Aufnahme von aromatischen Substanzen
US6384695B2 (en) 1999-03-08 2002-05-07 Lucent Technologies Inc. High power combiner apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713155A (en) * 1958-06-23 1973-01-23 Hughes Aircraft Co Monopulse radar receiver
US2995750A (en) * 1958-09-02 1961-08-08 Hughes Aircraft Co Radar receiver system
US3368861A (en) * 1964-05-04 1968-02-13 Bell Telephone Labor Inc Faraday rotator utilizing terbium aluminum garnet and dysprosium aluminum garnet
FR1432581A (fr) * 1964-12-24 1966-03-25 Thomson Houston Comp Francaise Perfectionnements aux récepteurs radars monocanaux
FR1570251A (it) * 1967-07-12 1969-06-06
US3956699A (en) * 1974-07-22 1976-05-11 Westinghouse Electric Corporation Electromagnetic wave communication system with variable polarization
US4385378A (en) * 1980-08-25 1983-05-24 Communication Satellite Corporation High power multiplexer for dual polarized frequency reuse earth stations

Also Published As

Publication number Publication date
DE3379595D1 (en) 1989-05-18
WO1984003360A1 (en) 1984-08-30
US4539681A (en) 1985-09-03
EP0137828B1 (en) 1989-04-12
JPH0456951B2 (it) 1992-09-10
IT8447742A1 (it) 1985-08-23
EP0137828A1 (en) 1985-04-24
CA1208713A (en) 1986-07-29
IT8447742A0 (it) 1984-02-23
JPS60500586A (ja) 1985-04-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970131