DE2213527A1 - Bodenantenne für ein Doppler -Lande system - Google Patents
Bodenantenne für ein Doppler -Lande systemInfo
- Publication number
- DE2213527A1 DE2213527A1 DE19722213527 DE2213527A DE2213527A1 DE 2213527 A1 DE2213527 A1 DE 2213527A1 DE 19722213527 DE19722213527 DE 19722213527 DE 2213527 A DE2213527 A DE 2213527A DE 2213527 A1 DE2213527 A1 DE 2213527A1
- Authority
- DE
- Germany
- Prior art keywords
- doppler
- area
- antenna
- radiator
- switch
- 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.)
- Pending
Links
- 238000001228 spectrum Methods 0.000 description 7
- 230000004913 activation Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004088 simulation Methods 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
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 |
|---|---|
| DE2213527A1 true DE2213527A1 (de) | 1972-10-05 |
Family
ID=9835231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722213527 Pending DE2213527A1 (de) | 1971-03-23 | 1972-03-21 | Bodenantenne für ein Doppler -Lande system |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2213527A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2130525B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1317396A (enrdf_load_stackoverflow) |
| IT (1) | IT950403B (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2204907A2 (enrdf_load_stackoverflow) * | 1970-12-29 | 1974-05-24 | Int Standard Electric Corp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1232699A (enrdf_load_stackoverflow) * | 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/it active
- 1972-03-21 DE DE19722213527 patent/DE2213527A1/de active Pending
- 1972-03-22 FR FR7209961A patent/FR2130525B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2204907A2 (enrdf_load_stackoverflow) * | 1970-12-29 | 1974-05-24 | Int Standard Electric Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1317396A (en) | 1973-05-16 |
| IT950403B (it) | 1973-06-20 |
| FR2130525B1 (enrdf_load_stackoverflow) | 1977-09-02 |
| FR2130525A1 (enrdf_load_stackoverflow) | 1972-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |