AU503820B2 - Antenna system for doppler vor ground stations - Google Patents
Antenna system for doppler vor ground stationsInfo
- Publication number
- AU503820B2 AU503820B2 AU16441/76A AU1644176A AU503820B2 AU 503820 B2 AU503820 B2 AU 503820B2 AU 16441/76 A AU16441/76 A AU 16441/76A AU 1644176 A AU1644176 A AU 1644176A AU 503820 B2 AU503820 B2 AU 503820B2
- Authority
- AU
- Australia
- Prior art keywords
- antenna system
- ground stations
- doppler vor
- vor ground
- doppler
- 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
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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- 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
-
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
- G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/242—Circumferential scanning
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU16441/76A AU503820B2 (en) | 1976-07-30 | 1976-07-30 | Antenna system for doppler vor ground stations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU16441/76A AU503820B2 (en) | 1976-07-30 | 1976-07-30 | Antenna system for doppler vor ground stations |
Publications (2)
Publication Number | Publication Date |
---|---|
AU1644176A AU1644176A (en) | 1978-02-02 |
AU503820B2 true AU503820B2 (en) | 1979-09-20 |
Family
ID=3706378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU16441/76A Expired AU503820B2 (en) | 1976-07-30 | 1976-07-30 | Antenna system for doppler vor ground stations |
Country Status (1)
Country | Link |
---|---|
AU (1) | AU503820B2 (en) |
-
1976
- 1976-07-30 AU AU16441/76A patent/AU503820B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU1644176A (en) | 1978-02-02 |
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