IT963615B - Radiofaro per la navigazione - Google Patents
Radiofaro per la navigazioneInfo
- Publication number
- IT963615B IT963615B IT27729/72A IT2772972A IT963615B IT 963615 B IT963615 B IT 963615B IT 27729/72 A IT27729/72 A IT 27729/72A IT 2772972 A IT2772972 A IT 2772972A IT 963615 B IT963615 B IT 963615B
- Authority
- IT
- Italy
- Prior art keywords
- navigation
- radio beacon
- beacon
- radio
- 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)
- Navigation (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3915871 | 1971-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT963615B true IT963615B (it) | 1974-01-21 |
Family
ID=10407990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT27729/72A IT963615B (it) | 1971-08-20 | 1972-08-01 | Radiofaro per la navigazione |
Country Status (8)
Country | Link |
---|---|
US (1) | US3873983A (it) |
JP (1) | JPS525238B2 (it) |
CA (1) | CA1003084A (it) |
DE (1) | DE2240004A1 (it) |
ES (1) | ES405971A1 (it) |
FR (1) | FR2150366B1 (it) |
GB (1) | GB1335899A (it) |
IT (1) | IT963615B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1524571A (en) * | 1975-03-06 | 1978-09-13 | Standard Telephones Cables Ltd | Radio navigation system and scanning beam antenna |
JPS6032221A (ja) * | 1983-07-30 | 1985-02-19 | 松下電工株式会社 | 交流駆動型電磁継電器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE624593A (it) * | 1961-11-10 | |||
US3277481A (en) * | 1964-02-26 | 1966-10-04 | Hazeltine Research Inc | Antenna beam stabilizer |
GB1225190A (it) * | 1968-09-23 | 1971-03-17 | ||
GB1234541A (it) * | 1969-02-05 | 1971-06-03 |
-
1971
- 1971-08-20 GB GB3915871A patent/GB1335899A/en not_active Expired
-
1972
- 1972-08-01 IT IT27729/72A patent/IT963615B/it active
- 1972-08-14 CA CA149,381A patent/CA1003084A/en not_active Expired
- 1972-08-14 US US280152A patent/US3873983A/en not_active Expired - Lifetime
- 1972-08-14 DE DE2240004A patent/DE2240004A1/de active Pending
- 1972-08-18 FR FR7229591A patent/FR2150366B1/fr not_active Expired
- 1972-08-19 ES ES405971A patent/ES405971A1/es not_active Expired
- 1972-08-22 JP JP47083575A patent/JPS525238B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2150366B1 (it) | 1979-04-13 |
JPS4830897A (it) | 1973-04-23 |
US3873983A (en) | 1975-03-25 |
JPS525238B2 (it) | 1977-02-10 |
CA1003084A (en) | 1977-01-04 |
DE2240004A1 (de) | 1973-02-22 |
ES405971A1 (es) | 1975-09-16 |
GB1335899A (en) | 1973-10-31 |
FR2150366A1 (it) | 1973-04-06 |
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