GB581162A - Radio distance meter - Google Patents
Radio distance meterInfo
- Publication number
- GB581162A GB581162A GB486840A GB486840A GB581162A GB 581162 A GB581162 A GB 581162A GB 486840 A GB486840 A GB 486840A GB 486840 A GB486840 A GB 486840A GB 581162 A GB581162 A GB 581162A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- circuit
- transmitter
- change
- rate
- Prior art date
- 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
- 230000035559 beat frequency Effects 0.000 abstract 5
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
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
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 (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE481265D BE481265A (enrdf_load_stackoverflow) | 1940-03-15 | ||
| GB486840A GB581162A (en) | 1940-03-15 | 1940-03-15 | Radio distance meter |
| FR939309D FR939309A (fr) | 1940-03-15 | 1946-08-29 | Systèmes radio-électriques pour la mesure des distances |
| ES0175930A ES175930A1 (es) | 1940-03-15 | 1946-11-29 | Mejoras en radio-medidores de distancia con los metodos y equipos correspondientes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB486840A GB581162A (en) | 1940-03-15 | 1940-03-15 | Radio distance meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB581162A true GB581162A (en) | 1946-10-03 |
Family
ID=9785324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB486840A Expired GB581162A (en) | 1940-03-15 | 1940-03-15 | Radio distance meter |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE481265A (enrdf_load_stackoverflow) |
| ES (1) | ES175930A1 (enrdf_load_stackoverflow) |
| FR (1) | FR939309A (enrdf_load_stackoverflow) |
| GB (1) | GB581162A (enrdf_load_stackoverflow) |
-
0
- BE BE481265D patent/BE481265A/xx unknown
-
1940
- 1940-03-15 GB GB486840A patent/GB581162A/en not_active Expired
-
1946
- 1946-08-29 FR FR939309D patent/FR939309A/fr not_active Expired
- 1946-11-29 ES ES0175930A patent/ES175930A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES175930A1 (es) | 1947-01-01 |
| BE481265A (enrdf_load_stackoverflow) | |
| FR939309A (fr) | 1948-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB541399A (en) | Radio-echo altimeters | |
| GB592577A (en) | Improvements relating to calibration arrangements for oscillographs and their application to radio obstacle detection systems | |
| GB586119A (en) | Improvements relating to arrangements for determining distance by means of electromagnetic waves | |
| GB586115A (en) | Methods of and systems for the demodulation of a wave which is repetitive at equal known time intervals | |
| GB1207565A (en) | Radio altimeters | |
| GB574965A (en) | Improvements in or relating to apparatus for determining the distance of an object by means of a reflected radio wave | |
| GB581162A (en) | Radio distance meter | |
| GB288233A (en) | Method and apparatus for the measurement of distances by the use of electromagnetic waves | |
| US3742496A (en) | Precision dme compatible with tacan | |
| GB610534A (en) | Improvements in radio distance measuring systems | |
| US2570235A (en) | Device for measurement of the distances of obstacles | |
| US2699544A (en) | Distance measuring system | |
| US2736892A (en) | Echo ranging | |
| US3305647A (en) | Signal transmission analysis system | |
| US2495722A (en) | Distance indicating system | |
| US2424854A (en) | Pulsed frequency modulated altimeter | |
| GB581982A (en) | Improvements relating to electrical apparatus for the measurement of distances by the reflection of electromagnetic waves | |
| GB1373736A (en) | Short-range transceiver | |
| US2873444A (en) | Pulse synchronizer | |
| GB601289A (en) | Improvements relating to equipment for determining the distance of bodies by means of radio waves | |
| GB915160A (en) | Improvements in or relating to radar systems | |
| GB702045A (en) | Improvements in or relating to apparatus for effecting amplitude compression and expansion of electric signals and signalling systems including such apparatus | |
| GB744535A (en) | Method of and means for measuring distance | |
| GB603440A (en) | Telemetering system | |
| GB557563A (en) | Improvements in or relating to ultra high frequency radio signalling systems |