ATE194734T1 - Verfahren und vorrichtung zur speisung, insbesondere eines doppler vor-systems, modulator für ein derartiges system und doppler vor-system - Google Patents
Verfahren und vorrichtung zur speisung, insbesondere eines doppler vor-systems, modulator für ein derartiges system und doppler vor-systemInfo
- Publication number
- ATE194734T1 ATE194734T1 AT95104345T AT95104345T ATE194734T1 AT E194734 T1 ATE194734 T1 AT E194734T1 AT 95104345 T AT95104345 T AT 95104345T AT 95104345 T AT95104345 T AT 95104345T AT E194734 T1 ATE194734 T1 AT E194734T1
- Authority
- AT
- Austria
- Prior art keywords
- function
- doppler pre
- doppler
- modulator
- powering
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000002156 mixing Methods 0.000 abstract 2
- 230000000737 periodic effect Effects 0.000 abstract 2
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
- 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
- G01S1/44—Rotating or oscillating beam beacons defining directions in the plane of rotation or oscillation
- G01S1/46—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system
- G01S1/50—Broad-beam systems producing at a receiver a substantially continuous sinusoidal envelope signal of the carrier wave of the beam, the phase angle of which is dependent upon the angle between the direction of the receiver from the beacon and a reference direction from the beacon, e.g. cardioid system wherein the phase angle of the direction-dependent envelope signal is compared with a non-direction-dependent reference signal, e.g. VOR
-
- 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
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
-
- 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
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)
- Ultra Sonic Daignosis Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI940612A IT1273392B (it) | 1994-03-31 | 1994-03-31 | Metodo e dispositivo di alimentazione, in particolare per un sistema vor doppler, modulatore adatto per gli stessi e sistema vor doppler |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE194734T1 true ATE194734T1 (de) | 2000-07-15 |
Family
ID=11368431
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT95104345T ATE194734T1 (de) | 1994-03-31 | 1995-03-24 | Verfahren und vorrichtung zur speisung, insbesondere eines doppler vor-systems, modulator für ein derartiges system und doppler vor-system |
Country Status (9)
Country | Link |
---|---|
US (1) | US5635941A (de) |
EP (1) | EP0675563B1 (de) |
JP (1) | JP3553683B2 (de) |
AT (1) | ATE194734T1 (de) |
AU (1) | AU692824B2 (de) |
CA (1) | CA2145964C (de) |
DE (1) | DE69517842T2 (de) |
ES (1) | ES2149287T3 (de) |
IT (1) | IT1273392B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2287626B1 (de) | 2006-06-13 | 2013-05-29 | Kabushiki Kaisha Toshiba | Phasenkorrekturgerät, inbesondere für Doppler-VOR Antennenarray |
JP4738384B2 (ja) * | 2006-06-13 | 2011-08-03 | 株式会社東芝 | 位相補正装置、dvor装置および位相補正方法 |
US8704712B2 (en) * | 2008-09-11 | 2014-04-22 | Indra Australia Pty Limited | System and method of generating a radio frequency signal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3896444A (en) * | 1974-01-09 | 1975-07-22 | Amalgamated Wireless Australas | Blending function and blending function generator |
US4050074A (en) * | 1976-07-16 | 1977-09-20 | Tull Aviation Corporation | Blended step scan beam signal from fixed beam components |
US4086597A (en) * | 1976-12-20 | 1978-04-25 | The Bendix Corporation | Continuous line scanning technique and means for beam port antennas |
US4129870A (en) * | 1977-09-30 | 1978-12-12 | Tull Aviation Corporation | Apparatus for synthesis of scanning beam |
FR2477722A1 (fr) * | 1980-03-05 | 1981-09-11 | Thomson Csf | Dispositif d'alimentation d'un systeme de radionavigation du type vor doppler et systeme vor doppler le comprenant |
-
1994
- 1994-03-31 IT ITMI940612A patent/IT1273392B/it active IP Right Grant
-
1995
- 1995-03-10 AU AU14731/95A patent/AU692824B2/en not_active Ceased
- 1995-03-24 EP EP95104345A patent/EP0675563B1/de not_active Expired - Lifetime
- 1995-03-24 AT AT95104345T patent/ATE194734T1/de not_active IP Right Cessation
- 1995-03-24 DE DE69517842T patent/DE69517842T2/de not_active Expired - Lifetime
- 1995-03-24 ES ES95104345T patent/ES2149287T3/es not_active Expired - Lifetime
- 1995-03-30 CA CA002145964A patent/CA2145964C/en not_active Expired - Fee Related
- 1995-03-30 US US08/413,535 patent/US5635941A/en not_active Expired - Lifetime
- 1995-03-31 JP JP07614295A patent/JP3553683B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ITMI940612A1 (it) | 1995-10-01 |
EP0675563A3 (de) | 1996-07-03 |
CA2145964C (en) | 2004-07-13 |
CA2145964A1 (en) | 1995-10-01 |
ES2149287T3 (es) | 2000-11-01 |
EP0675563A2 (de) | 1995-10-04 |
EP0675563B1 (de) | 2000-07-12 |
DE69517842D1 (de) | 2000-08-17 |
DE69517842T2 (de) | 2000-12-14 |
JP3553683B2 (ja) | 2004-08-11 |
JPH0843513A (ja) | 1996-02-16 |
AU692824B2 (en) | 1998-06-18 |
US5635941A (en) | 1997-06-03 |
AU1473195A (en) | 1995-10-12 |
ITMI940612A0 (it) | 1994-03-31 |
IT1273392B (it) | 1997-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |