NL293383A - - Google Patents
Info
- Publication number
- NL293383A NL293383A NL293383DA NL293383A NL 293383 A NL293383 A NL 293383A NL 293383D A NL293383D A NL 293383DA NL 293383 A NL293383 A NL 293383A
- Authority
- NL
- Netherlands
Links
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)
- Details Of Aerials (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20747/62A GB1038626A (en) | 1962-05-30 | 1962-05-30 | Improvements relating to radio beacons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL293383A true NL293383A (fr) |
Family
ID=10150983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL293383D NL293383A (fr) | 1962-05-30 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3273152A (fr) |
| BE (1) | BE633022A (fr) |
| CH (1) | CH407257A (fr) |
| GB (1) | GB1038626A (fr) |
| NL (1) | NL293383A (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3691560A (en) * | 1961-02-02 | 1972-09-12 | Calvin M Hammack | Method and apparatus for geometrical determination |
| US3435457A (en) * | 1965-12-07 | 1969-03-25 | Us Army | Underground antenna |
| US3775772A (en) * | 1966-05-11 | 1973-11-27 | Us Air Force | Ultra hard communications antenna |
| US3720949A (en) * | 1970-04-06 | 1973-03-13 | Us Navy | Variable resolution radar for tropospheric sounders |
| US3972044A (en) * | 1974-04-08 | 1976-07-27 | Andrew Alford | Antenna system for Doppler VOR ground stations |
| US5530358A (en) * | 1994-01-25 | 1996-06-25 | Baker Hughes, Incorporated | Method and apparatus for measurement-while-drilling utilizing improved antennas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1898474A (en) * | 1929-01-19 | 1933-02-21 | John A Willoughby | Aircraft landing system |
| US2665381A (en) * | 1947-10-16 | 1954-01-05 | Smith | Slotted cylindrical antenna |
| NL200083A (fr) * | 1954-11-16 | |||
| DE1123000B (de) * | 1958-07-16 | 1962-02-01 | Standard Elektrik Lorenz Ag | Anordnung zur drahtlosen Richtungsbestimmung auf Grund des Dopplereffektes |
| US3103663A (en) * | 1961-08-23 | 1963-09-10 | Louis W Parker | Three-dimensional direction finder for aircraft guidance |
-
0
- BE BE633022D patent/BE633022A/xx unknown
- NL NL293383D patent/NL293383A/xx unknown
-
1962
- 1962-05-30 GB GB20747/62A patent/GB1038626A/en not_active Expired
-
1963
- 1963-05-16 US US280834A patent/US3273152A/en not_active Expired - Lifetime
- 1963-05-27 CH CH658263A patent/CH407257A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE633022A (fr) | |
| GB1038626A (en) | 1966-08-10 |
| US3273152A (en) | 1966-09-13 |
| CH407257A (de) | 1966-02-15 |