FR871873A - Improvements to direction indicating devices of an electromagnetic wave transmitter - Google Patents
Improvements to direction indicating devices of an electromagnetic wave transmitterInfo
- Publication number
- FR871873A FR871873A FR871873DA FR871873A FR 871873 A FR871873 A FR 871873A FR 871873D A FR871873D A FR 871873DA FR 871873 A FR871873 A FR 871873A
- Authority
- FR
- France
- Prior art keywords
- electromagnetic wave
- wave transmitter
- direction indicating
- indicating devices
- 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
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE871873X | 1939-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR871873A true FR871873A (en) | 1942-05-20 |
Family
ID=6815805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR871873D Expired FR871873A (en) | 1939-12-20 | 1941-05-03 | Improvements to direction indicating devices of an electromagnetic wave transmitter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR871873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3376573A (en) * | 1967-06-30 | 1968-04-02 | Collins Radio Co | Crab angle sensing system for allweather landing system |
-
1941
- 1941-05-03 FR FR871873D patent/FR871873A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3376573A (en) * | 1967-06-30 | 1968-04-02 | Collins Radio Co | Crab angle sensing system for allweather landing system |
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