FR2261538B1 - - Google Patents
Info
- Publication number
- FR2261538B1 FR2261538B1 FR7405812A FR7405812A FR2261538B1 FR 2261538 B1 FR2261538 B1 FR 2261538B1 FR 7405812 A FR7405812 A FR 7405812A FR 7405812 A FR7405812 A FR 7405812A FR 2261538 B1 FR2261538 B1 FR 2261538B1
- Authority
- FR
- France
- 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
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- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Traffic Control Systems (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7405812A FR2261538A1 (en) | 1974-02-20 | 1974-02-20 | Phase modulated aircraft navigation system - aircraft receives signals from radio beacons, along flight path |
US05/550,481 US4019184A (en) | 1974-02-20 | 1975-02-18 | Direction-finding method and system |
DE2507401A DE2507401C3 (de) | 1974-02-20 | 1975-02-18 | Verfahren zur Bestimmung der Lage eines ersten Sende- und/oder Empfangsgerätes in bezug auf ein zweites Sende- und/oder Empfangsgerät und Einrichtung zur Durchführung des Verfahrens |
CA220,364A CA1026465A (en) | 1974-02-20 | 1975-02-18 | Method and installation for data transmission |
GB7031/75A GB1503211A (en) | 1974-02-20 | 1975-02-19 | Method and installation for data transmission |
SU762355952A SU735192A3 (ru) | 1974-02-20 | 1976-05-04 | Способ и система определени координат самолетов в зоне аэродрома |
SU762353705A SU728735A3 (ru) | 1974-02-20 | 1976-05-07 | Радиотехническа система посадки самолета |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7405812A FR2261538A1 (en) | 1974-02-20 | 1974-02-20 | Phase modulated aircraft navigation system - aircraft receives signals from radio beacons, along flight path |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2261538A1 FR2261538A1 (en) | 1975-09-12 |
FR2261538B1 true FR2261538B1 (sv) | 1980-05-16 |
Family
ID=9135209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7405812A Granted FR2261538A1 (en) | 1974-02-20 | 1974-02-20 | Phase modulated aircraft navigation system - aircraft receives signals from radio beacons, along flight path |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2261538A1 (sv) |
-
1974
- 1974-02-20 FR FR7405812A patent/FR2261538A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2261538A1 (en) | 1975-09-12 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |