FR2357910A1 - Perfectionnements aux system - Google Patents
Perfectionnements aux systemInfo
- Publication number
- FR2357910A1 FR2357910A1 FR7620944A FR7620944A FR2357910A1 FR 2357910 A1 FR2357910 A1 FR 2357910A1 FR 7620944 A FR7620944 A FR 7620944A FR 7620944 A FR7620944 A FR 7620944A FR 2357910 A1 FR2357910 A1 FR 2357910A1
- Authority
- FR
- France
- Prior art keywords
- receiver
- doppler effect
- aircraft landing
- radionavigation
- 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.)
- Granted
Links
- 230000000694 effects Effects 0.000 title abstract 2
- 230000003071 parasitic effect Effects 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 abstract 2
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000010349 pulsation Effects 0.000 abstract 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)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7620944A FR2357910A1 (fr) | 1976-07-08 | 1976-07-08 | Perfectionnements aux system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7620944A FR2357910A1 (fr) | 1976-07-08 | 1976-07-08 | Perfectionnements aux system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2357910A1 true FR2357910A1 (fr) | 1978-02-03 |
| FR2357910B1 FR2357910B1 (enExample) | 1980-11-21 |
Family
ID=9175433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7620944A Granted FR2357910A1 (fr) | 1976-07-08 | 1976-07-08 | Perfectionnements aux system |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2357910A1 (enExample) |
-
1976
- 1976-07-08 FR FR7620944A patent/FR2357910A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2357910B1 (enExample) | 1980-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |