DK137148B - Modulationsgenerator til et radionavigationsanlæg. - Google Patents

Modulationsgenerator til et radionavigationsanlæg.

Info

Publication number
DK137148B
DK137148B DK398074AA DK398074A DK137148B DK 137148 B DK137148 B DK 137148B DK 398074A A DK398074A A DK 398074AA DK 398074 A DK398074 A DK 398074A DK 137148 B DK137148 B DK 137148B
Authority
DK
Denmark
Prior art keywords
navigation system
radio navigation
modulation generator
modulation
generator
Prior art date
Application number
DK398074AA
Other languages
English (en)
Other versions
DK137148C (da
DK398074A (da
Inventor
James Stewart Hulett
Lowell Norman Shestag
Original Assignee
Emerson Electric 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 Emerson Electric Co filed Critical Emerson Electric Co
Publication of DK398074A publication Critical patent/DK398074A/da
Publication of DK137148B publication Critical patent/DK137148B/da
Application granted granted Critical
Publication of DK137148C publication Critical patent/DK137148C/da

Links

Classifications

    • 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
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
    • H01Q3/38—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters the phase-shifters being digital
    • H01Q3/385—Scan control logics
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
DK398074AA 1973-10-05 1974-07-24 Modulationsgenerator til et radionavigationsanlæg. DK137148B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US403997A US3925781A (en) 1973-10-05 1973-10-05 Digital modulation generator with cylindrical antenna array system

Publications (3)

Publication Number Publication Date
DK398074A DK398074A (da) 1975-06-02
DK137148B true DK137148B (da) 1978-01-23
DK137148C DK137148C (da) 1978-07-31

Family

ID=23597707

Family Applications (1)

Application Number Title Priority Date Filing Date
DK398074AA DK137148B (da) 1973-10-05 1974-07-24 Modulationsgenerator til et radionavigationsanlæg.

Country Status (7)

Country Link
US (1) US3925781A (da)
BE (1) BE817913A (da)
DE (1) DE2435873C2 (da)
DK (1) DK137148B (da)
GB (1) GB1451263A (da)
NL (1) NL7409963A (da)
NO (1) NO140804C (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050074A (en) * 1976-07-16 1977-09-20 Tull Aviation Corporation Blended step scan beam signal from fixed beam components
FR2398313A1 (fr) * 1977-07-20 1979-02-16 Aerospatiale Dispositif pour la simulation de signaux de relevement emis par une balise
US4129870A (en) * 1977-09-30 1978-12-12 Tull Aviation Corporation Apparatus for synthesis of scanning beam
EP0040088B1 (en) * 1980-05-13 1984-05-30 Secretary of State for Industry in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland Waveform synthesiser for calibrating vor equipment
FR2560447B1 (fr) * 1984-02-24 1988-04-08 Thomson Csf Antenne reseau et radar de sensibilite reduite au brouillage
US8755866B2 (en) * 2006-05-03 2014-06-17 Covidien Lp Method and apparatus for lymph node mapping
US9590603B1 (en) * 2007-08-31 2017-03-07 Louisiana Tech Research Corporation Beam steerable UWB radar

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046547A (en) * 1956-11-23 1962-07-24 Hughes Aircraft Co Two-pulse mti radar system
US3055001A (en) * 1959-06-26 1962-09-18 Percy E Ricketts Air traffic control system
US3242494A (en) * 1962-01-25 1966-03-22 Raytheon Co Position determination system
US3474446A (en) * 1968-02-26 1969-10-21 Itt Cylindrical array antenna system with electronic scanning
US3774214A (en) * 1971-01-07 1973-11-20 Tull Aviation Corp Scanning beam guidance method and system
DE2157243B2 (de) * 1971-11-18 1974-07-11 Vierling, Oskar, Prof. Dr.Phil. Habil., 8553 Ebermannstadt Schaltungsanordnung zum Erzeugen sinusförmiger Spannungen
US3772597A (en) * 1972-05-19 1973-11-13 Collins Radio Co Code transmission system

Also Published As

Publication number Publication date
DK137148C (da) 1978-07-31
BE817913A (fr) 1975-01-22
NO742689L (da) 1975-05-05
NL7409963A (nl) 1975-04-08
NO140804C (no) 1979-11-14
US3925781A (en) 1975-12-09
DE2435873C2 (de) 1986-12-18
NO140804B (no) 1979-08-06
DE2435873A1 (de) 1975-04-10
DK398074A (da) 1975-06-02
GB1451263A (en) 1976-09-29

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