DE2353587A1 - Bodenantenne fuer doppler-navigationssysteme - Google Patents
Bodenantenne fuer doppler-navigationssystemeInfo
- Publication number
- DE2353587A1 DE2353587A1 DE19732353587 DE2353587A DE2353587A1 DE 2353587 A1 DE2353587 A1 DE 2353587A1 DE 19732353587 DE19732353587 DE 19732353587 DE 2353587 A DE2353587 A DE 2353587A DE 2353587 A1 DE2353587 A1 DE 2353587A1
- Authority
- DE
- Germany
- Prior art keywords
- antenna
- radiators
- line
- distances
- switched
- 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.)
- Withdrawn
Links
- 241000251730 Chondrichthyes Species 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6159570 | 1970-12-29 | ||
| GB5005072A GB1408026A (en) | 1970-12-29 | 1972-10-31 | Radio navigation beacon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2353587A1 true DE2353587A1 (de) | 1974-05-09 |
Family
ID=26266607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732353587 Withdrawn DE2353587A1 (de) | 1970-12-29 | 1973-10-25 | Bodenantenne fuer doppler-navigationssysteme |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2353587A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2204907B2 (enrdf_load_stackoverflow) |
| GB (1) | GB1408026A (enrdf_load_stackoverflow) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1317396A (en) * | 1971-03-23 | 1973-05-16 | Standard Telephones Cables Ltd | Radio navigation beacon |
-
1972
- 1972-10-31 GB GB5005072A patent/GB1408026A/en not_active Expired
-
1973
- 1973-10-25 DE DE19732353587 patent/DE2353587A1/de not_active Withdrawn
- 1973-10-31 FR FR7338881A patent/FR2204907B2/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1408026A (en) | 1975-10-01 |
| FR2204907B2 (enrdf_load_stackoverflow) | 1977-03-11 |
| FR2204907A2 (enrdf_load_stackoverflow) | 1974-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |