GB1538173A - Radio navigation equipment - Google Patents
Radio navigation equipmentInfo
- Publication number
- GB1538173A GB1538173A GB4582276A GB4582276A GB1538173A GB 1538173 A GB1538173 A GB 1538173A GB 4582276 A GB4582276 A GB 4582276A GB 4582276 A GB4582276 A GB 4582276A GB 1538173 A GB1538173 A GB 1538173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- navigation equipment
- radio navigation
- radio
- equipment
- navigation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4582276A GB1538173A (en) | 1976-11-03 | 1976-11-03 | Radio navigation equipment |
DE19772746777 DE2746777A1 (en) | 1976-11-03 | 1977-10-18 | GROUND STATION FOR A RADIO NAVIGATION SYSTEM, IN PARTICULAR LANDING SYSTEM |
AU30200/77A AU3020077A (en) | 1976-11-03 | 1977-10-31 | Radio navigation equipment |
IT2916477A IT1088159B (en) | 1976-11-03 | 1977-10-31 | RADIOAVIGATION EQUIPMENT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4582276A GB1538173A (en) | 1976-11-03 | 1976-11-03 | Radio navigation equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1538173A true GB1538173A (en) | 1979-01-10 |
Family
ID=10438736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4582276A Expired GB1538173A (en) | 1976-11-03 | 1976-11-03 | Radio navigation equipment |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU3020077A (en) |
DE (1) | DE2746777A1 (en) |
GB (1) | GB1538173A (en) |
IT (1) | IT1088159B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4485384A (en) * | 1981-03-05 | 1984-11-27 | Connor Frank R | Microwave system |
-
1976
- 1976-11-03 GB GB4582276A patent/GB1538173A/en not_active Expired
-
1977
- 1977-10-18 DE DE19772746777 patent/DE2746777A1/en active Pending
- 1977-10-31 IT IT2916477A patent/IT1088159B/en active
- 1977-10-31 AU AU30200/77A patent/AU3020077A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4485384A (en) * | 1981-03-05 | 1984-11-27 | Connor Frank R | Microwave system |
Also Published As
Publication number | Publication date |
---|---|
IT1088159B (en) | 1985-06-10 |
AU3020077A (en) | 1979-05-10 |
DE2746777A1 (en) | 1978-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |