DK141829B - Fasesammenlignende radionavigationsanlæg. - Google Patents
Fasesammenlignende radionavigationsanlæg. Download PDFInfo
- Publication number
- DK141829B DK141829B DK596974AA DK596974A DK141829B DK 141829 B DK141829 B DK 141829B DK 596974A A DK596974A A DK 596974AA DK 596974 A DK596974 A DK 596974A DK 141829 B DK141829 B DK 141829B
- Authority
- DK
- Denmark
- Prior art keywords
- phase
- frequency
- signals
- signal
- discriminator
- Prior art date
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
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/30—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
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)
- Networks Using Active Elements (AREA)
- Navigation (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5322973A GB1468018A (en) | 1973-11-16 | 1973-11-16 | Phase comparison radio navigation systems |
GB5322973 | 1973-11-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK596974A DK596974A (no) | 1975-07-07 |
DK141829B true DK141829B (da) | 1980-06-23 |
DK141829C DK141829C (no) | 1980-11-17 |
Family
ID=10467071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK596974AA DK141829B (da) | 1973-11-16 | 1974-11-15 | Fasesammenlignende radionavigationsanlæg. |
Country Status (7)
Country | Link |
---|---|
US (1) | US3973261A (no) |
JP (1) | JPS5621108B2 (no) |
DE (1) | DE2454359A1 (no) |
DK (1) | DK141829B (no) |
FR (1) | FR2251827B1 (no) |
GB (1) | GB1468018A (no) |
NO (1) | NO142368C (no) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2574946B1 (fr) * | 1984-12-14 | 1987-01-30 | Thomson Csf | Procede de synchronisation radioelectrique de stations esclaves par une station maitre, notamment pour un systeme d'aide a l'atterrissage de type mls, et dispositifs de mise en oeuvre d'un tel procede |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3689925A (en) * | 1970-05-07 | 1972-09-05 | Dynell Elec | Receiver for omega navigation system |
US3761932A (en) * | 1971-11-22 | 1973-09-25 | Northrop Corp | Commutator generator for radio navigation receiver alignment |
JPS5033927B2 (no) * | 1973-07-06 | 1975-11-05 |
-
1973
- 1973-11-16 GB GB5322973A patent/GB1468018A/en not_active Expired
-
1974
- 1974-11-15 JP JP13122474A patent/JPS5621108B2/ja not_active Expired
- 1974-11-15 DK DK596974AA patent/DK141829B/da not_active IP Right Cessation
- 1974-11-15 NO NO744111A patent/NO142368C/no unknown
- 1974-11-15 US US05/524,199 patent/US3973261A/en not_active Expired - Lifetime
- 1974-11-15 DE DE19742454359 patent/DE2454359A1/de not_active Ceased
- 1974-11-15 FR FR7437674A patent/FR2251827B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2251827A1 (no) | 1975-06-13 |
DK596974A (no) | 1975-07-07 |
US3973261A (en) | 1976-08-03 |
FR2251827B1 (no) | 1980-04-11 |
NO142368C (no) | 1980-08-20 |
NO142368B (no) | 1980-04-28 |
DE2454359A1 (de) | 1975-06-12 |
JPS50114193A (no) | 1975-09-06 |
NO744111L (no) | 1975-06-16 |
DK141829C (no) | 1980-11-17 |
GB1468018A (en) | 1977-03-23 |
JPS5621108B2 (no) | 1981-05-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |