BE478971A - - Google Patents
Info
- Publication number
- BE478971A BE478971A BE478971DA BE478971A BE 478971 A BE478971 A BE 478971A BE 478971D A BE478971D A BE 478971DA BE 478971 A BE478971 A BE 478971A
- Authority
- BE
- Belgium
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
- G01S1/24—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 pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1828742A GB581602A (en) | 1942-12-23 | 1942-12-23 | Improvements in or relating to wireless signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE478971A true BE478971A (ko) |
Family
ID=10109866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE478971D BE478971A (ko) | 1942-12-23 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE478971A (ko) |
| FR (1) | FR958127A (ko) |
| GB (1) | GB581602A (ko) |
| NL (2) | NL77666C (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2689346A (en) * | 1945-06-13 | 1954-09-14 | Us Navy | Long range navigation system |
| US2578980A (en) * | 1946-03-07 | 1951-12-18 | Decca Record Co Ltd | Radio-frequency navigation system |
| US2513322A (en) * | 1948-11-27 | 1950-07-04 | Seismograph Service Corp | Radio location system |
-
0
- NL NL138127D patent/NL138127B/xx unknown
- BE BE478971D patent/BE478971A/xx unknown
- NL NL77666D patent/NL77666C/xx active
- FR FR958127D patent/FR958127A/fr not_active Expired
-
1942
- 1942-12-23 GB GB1828742A patent/GB581602A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL138127B (ko) | |
| NL77666C (ko) | |
| FR958127A (ko) | 1950-03-03 |
| GB581602A (en) | 1946-10-18 |