IT944015B - RADIO BEACON FOR RADIONAVIGATION - Google Patents
RADIO BEACON FOR RADIONAVIGATIONInfo
- Publication number
- IT944015B IT944015B IT3246571A IT3246571A IT944015B IT 944015 B IT944015 B IT 944015B IT 3246571 A IT3246571 A IT 3246571A IT 3246571 A IT3246571 A IT 3246571A IT 944015 B IT944015 B IT 944015B
- Authority
- IT
- Italy
- Prior art keywords
- radionavigation
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB6159570 | 1970-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT944015B true IT944015B (en) | 1973-04-20 |
Family
ID=10487200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT3246571A IT944015B (en) | 1970-12-29 | 1971-12-16 | RADIO BEACON FOR RADIONAVIGATION |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5131198B1 (en) |
CA (1) | CA968876A (en) |
DE (1) | DE2162960A1 (en) |
FR (1) | FR2120097B1 (en) |
GB (1) | GB1317310A (en) |
IT (1) | IT944015B (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1123000B (en) * | 1958-07-16 | 1962-02-01 | Standard Elektrik Lorenz Ag | Arrangement for wireless determination of direction based on the Doppler effect |
BE625333A (en) * | 1960-09-24 | |||
FR1396305A (en) * | 1960-09-24 | 1965-04-23 | Int Standard Electric Corp | Frequency modulated radio beacon |
BE636626A (en) * | 1962-08-27 |
-
1970
- 1970-12-29 GB GB1317310D patent/GB1317310A/en not_active Expired
-
1971
- 1971-12-16 CA CA130,328A patent/CA968876A/en not_active Expired
- 1971-12-16 IT IT3246571A patent/IT944015B/en active
- 1971-12-18 DE DE19712162960 patent/DE2162960A1/en active Pending
- 1971-12-23 JP JP10423071A patent/JPS5131198B1/ja active Pending
- 1971-12-29 FR FR7147225A patent/FR2120097B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5131198B1 (en) | 1976-09-04 |
GB1317310A (en) | 1973-05-16 |
CA968876A (en) | 1975-06-03 |
FR2120097B1 (en) | 1975-08-29 |
DE2162960A1 (en) | 1972-07-20 |
FR2120097A1 (en) | 1972-08-11 |
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