FR2902893B1 - Recepteur sonar a lobes lateraux reduits. - Google Patents
Recepteur sonar a lobes lateraux reduits.Info
- Publication number
- FR2902893B1 FR2902893B1 FR0101089A FR0101089A FR2902893B1 FR 2902893 B1 FR2902893 B1 FR 2902893B1 FR 0101089 A FR0101089 A FR 0101089A FR 0101089 A FR0101089 A FR 0101089A FR 2902893 B1 FR2902893 B1 FR 2902893B1
- Authority
- FR
- France
- Prior art keywords
- reduced lateral
- lateral lobes
- sonar receiver
- sonar
- receiver
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/346—Circuits therefor using phase variation
-
- 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
-
- 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
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52003—Techniques for enhancing spatial resolution of targets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Multimedia (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 |
---|---|---|---|
GB0001907A GB2414800B (en) | 2000-01-27 | 2000-01-27 | Sonar receiver with low side lobes |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2902893A1 FR2902893A1 (fr) | 2007-12-28 |
FR2902893B1 true FR2902893B1 (fr) | 2009-05-29 |
Family
ID=34224499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0101089A Expired - Fee Related FR2902893B1 (fr) | 2000-01-27 | 2001-01-26 | Recepteur sonar a lobes lateraux reduits. |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU784529B1 (fr) |
FR (1) | FR2902893B1 (fr) |
GB (1) | GB2414800B (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3076355B1 (fr) * | 2017-12-28 | 2021-03-12 | Thales Sa | Dispositif de mesure destine a etre immerge |
GB2606191A (en) * | 2021-04-29 | 2022-11-02 | Secr Defence | A method and system for directional processing of audio information |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE702103C (de) * | 1938-04-01 | 1941-01-30 | Electroacustic Gmbh | Einrichtung zum einseitig gerichteten Senden eines allseitig begrenzten Schallstrahles |
US3141148A (en) * | 1960-12-27 | 1964-07-14 | Honeywell Regulator Co | Underwater sound apparatus |
GB1605336A (en) * | 1976-11-05 | 1991-12-18 | Secr Defence | Improvements in or relating to solar beam forcing systems |
GB2023940B (en) * | 1978-06-15 | 1983-02-02 | Plessey Co Ltd | Directional arrays |
GB2042725B (en) * | 1979-02-21 | 1983-02-16 | Sperry Corp | Sonar detection system |
US5091892A (en) * | 1983-05-13 | 1992-02-25 | Allied-Signal Inc. | Expandable sonar array structure |
GB2196119B (en) * | 1985-10-07 | 1989-09-20 | Plessey Co Plc | Improvements in or relating to a method and to a system for signal detection |
US4662223A (en) * | 1985-10-31 | 1987-05-05 | General Electric Company | Method and means for steering phased array scanner in ultrasound imaging system |
FR2604530B1 (fr) * | 1986-09-26 | 1988-12-09 | Thomson Csf | Sonar cylindrique deployable |
GB2233093B (en) * | 1989-03-31 | 1993-02-10 | Plessey Co Plc | Improvements relating to acoustic sensing arrangements |
GB8917275D0 (en) * | 1989-07-28 | 2001-10-17 | Secr Defence | Reduction of low frequency vibration noise in towed arrays |
US5377166A (en) * | 1994-01-25 | 1994-12-27 | Martin Marietta Corporation | Polyhedral directional transducer array |
GB2287537B (en) * | 1994-03-16 | 1997-11-05 | Ferranti Thomson Sonar Systems | Passive sonar transducer arrangement |
US5764195A (en) * | 1996-07-24 | 1998-06-09 | Hazeltine Corporation | UHF/VHF multifunction ocean antenna system |
-
2000
- 2000-01-27 GB GB0001907A patent/GB2414800B/en not_active Expired - Fee Related
-
2001
- 2001-01-03 AU AU11086/01A patent/AU784529B1/en not_active Ceased
- 2001-01-26 FR FR0101089A patent/FR2902893B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2414800B (en) | 2006-05-31 |
GB2414800A (en) | 2005-12-07 |
GB0001907D0 (en) | 2005-02-23 |
AU784529B1 (en) | 2006-04-27 |
FR2902893A1 (fr) | 2007-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20150930 |