IT950403B - RADIO BEACON FOR NAVIGATION - Google Patents
RADIO BEACON FOR NAVIGATIONInfo
- Publication number
- IT950403B IT950403B IT2213272A IT2213272A IT950403B IT 950403 B IT950403 B IT 950403B IT 2213272 A IT2213272 A IT 2213272A IT 2213272 A IT2213272 A IT 2213272A IT 950403 B IT950403 B IT 950403B
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB754771 | 1971-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT950403B true IT950403B (en) | 1973-06-20 |
Family
ID=9835231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2213272A IT950403B (en) | 1971-03-23 | 1972-03-21 | RADIO BEACON FOR NAVIGATION |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2213527A1 (en) |
FR (1) | FR2130525B1 (en) |
GB (1) | GB1317396A (en) |
IT (1) | IT950403B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1408026A (en) * | 1970-12-29 | 1975-10-01 | Standard Telephones Cables Ltd | Radio navigation beacon |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1232699A (en) * | 1968-12-13 | 1971-05-19 |
-
1971
- 1971-03-23 GB GB1317396D patent/GB1317396A/en not_active Expired
-
1972
- 1972-03-21 IT IT2213272A patent/IT950403B/en active
- 1972-03-21 DE DE19722213527 patent/DE2213527A1/en active Pending
- 1972-03-22 FR FR7209961A patent/FR2130525B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2130525A1 (en) | 1972-11-03 |
DE2213527A1 (en) | 1972-10-05 |
FR2130525B1 (en) | 1977-09-02 |
GB1317396A (en) | 1973-05-16 |
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