NL287672A - - Google Patents
Info
- Publication number
- NL287672A NL287672A NL287672DA NL287672A NL 287672 A NL287672 A NL 287672A NL 287672D A NL287672D A NL 287672DA NL 287672 A NL287672 A NL 287672A
- Authority
- NL
- Netherlands
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
- G01S3/80—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 ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/805—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristics of a transducer or transducer system to give a desired condition of signal derived from that transducer or transducer system, e.g. to give a maximum or minimum signal
-
- 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
- G01S3/80—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 ultrasonic, sonic or infrasonic waves
- G01S3/802—Systems for determining direction or deviation from predetermined direction
- G01S3/808—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/8083—Systems for determining direction or deviation from predetermined direction using transducers spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems determining direction of source
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR884629A FR1381217A (fr) | 1962-01-12 | 1962-01-12 | Système d'écoute à grilles |
Publications (1)
Publication Number | Publication Date |
---|---|
NL287672A true NL287672A (xx) |
Family
ID=8770334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL287672D NL287672A (xx) | 1962-01-12 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1191721B (xx) |
FR (1) | FR1381217A (xx) |
GB (1) | GB1025466A (xx) |
NL (1) | NL287672A (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2049666A5 (xx) * | 1969-06-16 | 1971-03-26 | Cit Alcatel | |
FR2050619A5 (xx) * | 1969-06-18 | 1971-04-02 | Cit Alcatel | |
CA1135826A (en) * | 1978-09-08 | 1982-11-16 | Adrian Van't Hullenaar | Digital time-delay beamformer for sonar systems |
-
0
- NL NL287672D patent/NL287672A/xx unknown
-
1962
- 1962-01-12 FR FR884629A patent/FR1381217A/fr not_active Expired
-
1963
- 1963-01-07 GB GB76763A patent/GB1025466A/en not_active Expired
- 1963-01-11 DE DEC28883A patent/DE1191721B/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1025466A (en) | 1966-04-06 |
FR1381217A (fr) | 1964-12-14 |
DE1191721B (de) | 1965-04-22 |