FR2261628B1 - - Google Patents
Info
- Publication number
- FR2261628B1 FR2261628B1 FR7405808A FR7405808A FR2261628B1 FR 2261628 B1 FR2261628 B1 FR 2261628B1 FR 7405808 A FR7405808 A FR 7405808A FR 7405808 A FR7405808 A FR 7405808A FR 2261628 B1 FR2261628 B1 FR 2261628B1
- 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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- 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
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
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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
- 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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
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 (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7405808A FR2261628A1 (en) | 1974-02-20 | 1974-02-20 | Mobile rotating radar antennae - uses two or more aerials moving relative to each other |
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 |
US05/550,481 US4019184A (en) | 1974-02-20 | 1975-02-18 | Direction-finding method and system |
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 |
---|---|---|---|
FR7405808A FR2261628A1 (en) | 1974-02-20 | 1974-02-20 | Mobile rotating radar antennae - uses two or more aerials moving relative to each other |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2261628A1 FR2261628A1 (en) | 1975-09-12 |
FR2261628B1 true FR2261628B1 (ja) | 1978-01-06 |
Family
ID=9135205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7405808A Granted FR2261628A1 (en) | 1974-02-20 | 1974-02-20 | Mobile rotating radar antennae - uses two or more aerials moving relative to each other |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2261628A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2445040A1 (fr) * | 1978-12-22 | 1980-07-18 | Thomson Csf | Antenne a balayage conique pour radar, notamment radar de poursuite |
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1974
- 1974-02-20 FR FR7405808A patent/FR2261628A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2261628A1 (en) | 1975-09-12 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |