FR830133A - Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times - Google Patents
Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation timesInfo
- Publication number
- FR830133A FR830133A FR830133DA FR830133A FR 830133 A FR830133 A FR 830133A FR 830133D A FR830133D A FR 830133DA FR 830133 A FR830133 A FR 830133A
- Authority
- FR
- France
- Prior art keywords
- incidence
- comparison
- determining
- propagation times
- total propagation
- 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
-
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic waves
-
- 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
- G01S3/48—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 the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F10/00—Apparatus for measuring unknown time intervals by electric means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH198570T | 1936-12-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR830133A true FR830133A (en) | 1938-07-21 |
Family
ID=4441384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR830133D Expired FR830133A (en) | 1936-12-01 | 1937-11-29 | Method and device for determining the direction of incidence of oscillatory phenomena, by comparison of their total propagation times |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH198570A (en) |
DE (1) | DE689473C (en) |
FR (1) | FR830133A (en) |
GB (1) | GB493340A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1122881B (en) * | 1954-09-30 | 1962-01-25 | Electroacustik G M B H | Method and device for displaying the position of objects being soldered |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2496031A (en) * | 1947-12-30 | 1950-01-31 | Rca Corp | Dual microphone sound detector system |
DE943597C (en) * | 1951-04-10 | 1956-05-24 | Gasaccumulator Svenska Ab | Device for automatic gain control in receivers for radio direction finding |
US3177489A (en) * | 1960-01-11 | 1965-04-06 | Thompson Ramo Wooldridge Inc | Interference suppression systems |
DE1220291B (en) * | 1960-06-11 | 1966-06-30 | Atlas Werke Ag | Method for determining the direction of incident sound wave energy |
-
1936
- 1936-12-01 CH CH198570D patent/CH198570A/en unknown
-
1937
- 1937-11-19 DE DE1937A0084879 patent/DE689473C/en not_active Expired
- 1937-11-29 FR FR830133D patent/FR830133A/en not_active Expired
- 1937-12-01 GB GB3319237A patent/GB493340A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1122881B (en) * | 1954-09-30 | 1962-01-25 | Electroacustik G M B H | Method and device for displaying the position of objects being soldered |
Also Published As
Publication number | Publication date |
---|---|
CH198570A (en) | 1938-06-30 |
GB493340A (en) | 1938-10-06 |
DE689473C (en) | 1940-03-29 |
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