NL7001684A - - Google Patents
Info
- Publication number
- NL7001684A NL7001684A NL7001684A NL7001684A NL7001684A NL 7001684 A NL7001684 A NL 7001684A NL 7001684 A NL7001684 A NL 7001684A NL 7001684 A NL7001684 A NL 7001684A NL 7001684 A NL7001684 A NL 7001684A
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB615769 | 1969-02-05 | ||
| GB1325069 | 1969-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7001684A true NL7001684A (de) | 1970-08-07 |
Family
ID=26240479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7001684A NL7001684A (de) | 1969-02-05 | 1970-02-05 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2033297B1 (de) |
| NL (1) | NL7001684A (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3173140A (en) * | 1959-02-20 | 1965-03-09 | Servo Corp Of America | Doppler omnirange navigational system |
| DE1276141B (de) * | 1959-02-28 | 1968-08-29 | Standard Elektrik Lorenz Ag | Doppler-Grossbasis-Funknavigationsanlage |
| FR1287274A (fr) * | 1960-04-27 | 1962-03-09 | Int Standard Electric Corp | Radiobalise modulée en fréquence |
-
1970
- 1970-02-05 NL NL7001684A patent/NL7001684A/xx not_active Application Discontinuation
- 1970-02-05 FR FR7004071A patent/FR2033297B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2033297B1 (de) | 1974-05-24 |
| DE2004811B2 (de) | 1972-10-19 |
| DE2004811A1 (de) | 1970-08-27 |
| FR2033297A1 (de) | 1970-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |