IT1046706B - Radiofaro per la navigazione - Google Patents
Radiofaro per la navigazioneInfo
- Publication number
- IT1046706B IT1046706B IT30238/73A IT3023873A IT1046706B IT 1046706 B IT1046706 B IT 1046706B IT 30238/73 A IT30238/73 A IT 30238/73A IT 3023873 A IT3023873 A IT 3023873A IT 1046706 B IT1046706 B IT 1046706B
- Authority
- IT
- Italy
- Prior art keywords
- radiofaro
- navigation
- Prior art date
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5005072A GB1408026A (en) | 1970-12-29 | 1972-10-31 | Radio navigation beacon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1046706B true IT1046706B (it) | 1980-07-31 |
Family
ID=10454463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT30238/73A IT1046706B (it) | 1972-10-31 | 1973-10-18 | Radiofaro per la navigazione |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3836978A (it) |
| JP (1) | JPS4979192A (it) |
| IT (1) | IT1046706B (it) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2455291A1 (fr) * | 1979-04-26 | 1980-11-21 | Thomson Csf | Systeme interrogateur aeroporte |
| US4495502A (en) * | 1982-01-27 | 1985-01-22 | The United States Of America As Represented By The Secretary Of The Air Force | Multiple loop sidelobe canceller |
| US4912479A (en) * | 1986-03-26 | 1990-03-27 | Nec Corporation | Microwave landing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3754261A (en) * | 1972-03-27 | 1973-08-21 | Int Standard Electric Corp | Radio navigation beacon |
-
1973
- 1973-10-18 IT IT30238/73A patent/IT1046706B/it active
- 1973-10-23 US US00408460A patent/US3836978A/en not_active Expired - Lifetime
- 1973-10-29 JP JP48120872A patent/JPS4979192A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU6136573A (en) | 1975-04-17 |
| JPS4979192A (it) | 1974-07-31 |
| US3836978A (en) | 1974-09-17 |
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