GB630843A - Improvements in or relating to radio navigational systems - Google Patents
Improvements in or relating to radio navigational systemsInfo
- Publication number
- GB630843A GB630843A GB13585/49A GB1358549A GB630843A GB 630843 A GB630843 A GB 630843A GB 13585/49 A GB13585/49 A GB 13585/49A GB 1358549 A GB1358549 A GB 1358549A GB 630843 A GB630843 A GB 630843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequencies
- signals
- receiver
- fed
- frequency
- 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
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)
- Superheterodyne Receivers (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US612997A US2530902A (en) | 1945-08-27 | 1945-08-27 | Receiving apparatus for radiofrequency navigation systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB630843A true GB630843A (en) | 1949-10-21 |
Family
ID=24455459
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25493/46A Expired GB630435A (en) | 1945-08-27 | 1946-08-26 | Improvements in or relating to radio navigational systems |
GB13585/49A Expired GB630843A (en) | 1945-08-27 | 1946-08-26 | Improvements in or relating to radio navigational systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25493/46A Expired GB630435A (en) | 1945-08-27 | 1946-08-26 | Improvements in or relating to radio navigational systems |
Country Status (3)
Country | Link |
---|---|
US (1) | US2530902A (US20030199744A1-20031023-C00003.png) |
FR (1) | FR949080A (US20030199744A1-20031023-C00003.png) |
GB (2) | GB630435A (US20030199744A1-20031023-C00003.png) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2611127A (en) * | 1947-10-28 | 1952-09-16 | Sperry Corp | Continuous wave navigation system |
US2991011A (en) * | 1948-12-02 | 1961-07-04 | Honeywell Regulator Co | Hyperbolic navigation system and computer therefor |
US3079586A (en) * | 1957-12-27 | 1963-02-26 | Gunn Ross | Locating and guidance systems for vehicles for air, sea and land |
NL290047A (US20030199744A1-20031023-C00003.png) * | 1962-03-14 | |||
GB1079408A (en) * | 1964-02-20 | 1967-08-16 | Standard Telephones Cables Ltd | Radio navigation system |
US9285206B1 (en) | 2012-02-07 | 2016-03-15 | Pile Dynamics, Inc. | Measurement device for pile displacement and method for use of the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2144203A (en) * | 1937-09-23 | 1939-01-17 | John P Shanklin | Method for direct indication of position in a given area |
US2252699A (en) * | 1938-07-30 | 1941-08-19 | Collins Radio Co | Azimuth radio beacon system |
GB547183A (en) * | 1941-02-14 | 1942-08-17 | Marconi Wireless Telegraph Co | Improvements in oscillation generator arrangements and in frequency modulation arrangements |
US2408773A (en) * | 1942-03-31 | 1946-10-08 | Bell Telephone Labor Inc | Position determining system |
-
0
- FR FR949080D patent/FR949080A/fr not_active Expired
-
1945
- 1945-08-27 US US612997A patent/US2530902A/en not_active Expired - Lifetime
-
1946
- 1946-08-26 GB GB25493/46A patent/GB630435A/en not_active Expired
- 1946-08-26 GB GB13585/49A patent/GB630843A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB630435A (en) | 1949-10-13 |
FR949080A (US20030199744A1-20031023-C00003.png) | 1949-08-25 |
US2530902A (en) | 1950-11-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB973418A (en) | Diversity receiving system | |
US2836712A (en) | Automatic frequency control and tuning indicator | |
GB630843A (en) | Improvements in or relating to radio navigational systems | |
US2245717A (en) | Wave indicating system | |
GB620508A (en) | Improvements in or relating to multiple channel radio receivers | |
US2692332A (en) | Wide band receiver | |
US2877344A (en) | Transmitter-receiver tuning system | |
GB675698A (en) | Radio navigation system | |
US2433290A (en) | Two-way radio communication system | |
GB663775A (en) | Radio position determining system | |
US3171127A (en) | Radio navigation apparatus | |
GB714684A (en) | Improvements in devices for frequency selections | |
GB611626A (en) | Improvements in radio-telegraphy | |
US2985753A (en) | Crystal saver circuit | |
US2853705A (en) | Direction finding system | |
US1735171A (en) | Beat-frequency heterodyne receiver arrangement | |
GB602147A (en) | Improvements in calibrating system for radio receivers | |
US2626391A (en) | Receiving apparatus for radiofrequency navigation systems | |
SU369522A1 (ru) | УСТРОЙСТВО дл ПОВЕРКИ и КАЛИБРОВКИ ФАЗОМЕТРОВ | |
GB912607A (en) | Improvements in frequency stabilised radio oscillation generators | |
US1598144A (en) | Radio receiving apparatus | |
JPS5642448A (en) | Radio transmission-reception system | |
US1722789A (en) | Antiinterference radio signaling system | |
US1882166A (en) | Reduction of fading effects in radio communication | |
GB804605A (en) | Radio location system |