FR57757E - Dispositifs radiogoniométriques et analogues - Google Patents
Dispositifs radiogoniométriques et analoguesInfo
- Publication number
- FR57757E FR57757E FR57757DA FR57757E FR 57757 E FR57757 E FR 57757E FR 57757D A FR57757D A FR 57757DA FR 57757 E FR57757 E FR 57757E
- Authority
- FR
- France
- Prior art keywords
- finding
- similar devices
- similar
- devices
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
- G01S3/40—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal adjusting orientation of a single directivity characteristic to produce maximum or minimum signal, e.g. rotatable loop antenna or equivalent goniometer system
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Relating To Insulation (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440154A US2421009A (en) | 1942-04-23 | 1942-04-23 | Direction finding system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR57757E true FR57757E (fr) | 1953-09-09 |
Family
ID=23747665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR57757D Expired FR57757E (fr) | 1942-04-23 | 1947-08-05 | Dispositifs radiogoniométriques et analogues |
Country Status (3)
Country | Link |
---|---|
US (1) | US2421009A (fr) |
FR (1) | FR57757E (fr) |
GB (1) | GB591867A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3939477A (en) * | 1973-04-06 | 1976-02-17 | Southwest Research Institute | Quadrupole adcock direction finder and antenna therefor |
DE3419345A1 (de) * | 1984-05-24 | 1985-11-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Interferometerpeilanordnung |
US6239747B1 (en) | 1999-03-11 | 2001-05-29 | Lucent Technologies Inc. | Antenna system and method for direction finding |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB427674A (en) * | 1934-03-29 | 1935-04-29 | Richard Hugh Loraine Bevan | Improvements in and relating to direction finding apparatus for use in wireless telegraphy |
GB439714A (en) * | 1934-10-11 | 1935-12-12 | Richard Hugh Loraine Bevan | Improvements in and relating to direction finding apparatus for use in wireless telegraphy |
US2174016A (en) * | 1937-04-08 | 1939-09-26 | Pan American Airways Corp | Direction finder |
-
1942
- 1942-04-23 US US440154A patent/US2421009A/en not_active Expired - Lifetime
-
1944
- 1944-10-20 GB GB20399/44A patent/GB591867A/en not_active Expired
-
1947
- 1947-08-05 FR FR57757D patent/FR57757E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2421009A (en) | 1947-05-27 |
GB591867A (en) | 1947-09-01 |
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