MY147074A - Method for finding the bearing of a sound-emitting target - Google Patents
Method for finding the bearing of a sound-emitting targetInfo
- Publication number
- MY147074A MY147074A MYPI20094660A MYPI20094660A MY147074A MY 147074 A MY147074 A MY 147074A MY PI20094660 A MYPI20094660 A MY PI20094660A MY PI20094660 A MYPI20094660 A MY PI20094660A MY 147074 A MY147074 A MY 147074A
- Authority
- MY
- Malaysia
- Prior art keywords
- acoustic
- target
- location
- ßzk
- incident angle
- Prior art date
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
- G01S3/78—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 electromagnetic waves other than radio waves
- G01S3/782—Systems for determining direction or deviation from predetermined direction
-
- 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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
THE INVENTION RELATES TO A METHOD FOR LOCATING A SOUND PROJECTING TARGET BY MEANS OF AN ELONGATED UNDERWATER ANTENNA (10) HAVING A PLURALITY OF ELECTROACOUSTIC CONVERTERS (11), WHEREIN A HORIZONTAL TARGET LOCATION (ßZK) IS DETERMINED IN THE WATER AS THE TARGET IN A DIRECTIONALLY SELECTIVE MANNER FROM THE RECEIVING SIGNALS OF THE CONVERTERS (11), INCLUDING A MEASURED VARIABLE (CMESS) OF THE ACOUSTIC VELOCITY. IN ORDER TO COMPENSATE THE SYSTEMATIC LOCATION ERROR INHERENT IN SUCH AN UNDERWATER ANTENNA, WHICH MAY LEAD TO ERRONEOUS LOCATIONS PARTICULARLY IN THE. CASE OF GREATER LOCATING ANGLES, THE ACOUSTIC RADIATION COURSE IS CALCULATED IN THE ACOUSTIC DISTRIBUTION DIRECTION SPECIFIED BY THE TARGET LOCATION (ßZK) BY MEANS OF AN ACOUSTIC DISTRIBUTION MODEL, AND A VERTICAL ACOUSTIC INCIDENT ANGLE (?K) IS DETERMINED AT THE LOCATION OF THE ANTENNA FROM THE ACOUSTIC RADIATION COURSE FOR AN ESTIMATED DISTANCE AND DEPTH OF THE TARGET. A CORRECTION FACTOR IS DEDUCED FROM THE VERTICAL ACOUSTIC INCIDENT ANGLE (?K), AND THE MEASURED VARIABLE (CMESS) OF THE ACOUSTIC VELOCITY IS CORRECTED BY MULTIPLYING THE MEASURED VARIABLE BY SAID ACOUSTIC INCIDENT ANGLE. LOCATING IN TURN IS CARRIED OUT USING THE CORRECTED VARIABLE (CEINSTELL) OF THE ACOUSTIC VELOCITY, AND AN IMPROVED TARGET LOCATION (ßZK) IS OBTAINED.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007022563A DE102007022563A1 (en) | 2007-05-14 | 2007-05-14 | Method for locating a sounding target |
Publications (1)
Publication Number | Publication Date |
---|---|
MY147074A true MY147074A (en) | 2012-10-31 |
Family
ID=39496047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI20094660A MY147074A (en) | 2007-05-14 | 2008-04-03 | Method for finding the bearing of a sound-emitting target |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP2145203B1 (en) |
JP (1) | JP4922450B2 (en) |
KR (1) | KR20100017807A (en) |
AT (1) | ATE516509T1 (en) |
AU (1) | AU2008250691B2 (en) |
CA (1) | CA2684930A1 (en) |
DE (1) | DE102007022563A1 (en) |
ES (1) | ES2369593T3 (en) |
IL (1) | IL201876A (en) |
MY (1) | MY147074A (en) |
WO (1) | WO2008138433A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009047940B3 (en) * | 2009-10-01 | 2011-03-24 | Atlas Hydrographic Gmbh | Method for determining sound velocity in region of acoustic receiver attached at e.g. research ship during measuring surface profile of waterbody base, involves comparing profiles and determining value for sound velocity based on results |
JP5704327B2 (en) * | 2011-03-28 | 2015-04-22 | 日本電気株式会社 | Horizontal distance calculation system and horizontal distance calculation method for calculating horizontal distance to underwater object |
KR101285692B1 (en) | 2012-07-04 | 2013-07-12 | 국방과학연구소 | Apparatus and method for correcting direction finding data |
KR101467822B1 (en) * | 2013-12-18 | 2014-12-03 | 한국해양과학기술원 | Signal processing method for transforming and reproducing stereo underwater acoustic signals in the air and signal processing appratus using thereof |
DE102019201174A1 (en) | 2019-01-30 | 2020-07-30 | Atlas Elektronik Gmbh | Method and receiving system for determining a distance to an underwater sound source |
CN111580079B (en) * | 2020-05-11 | 2022-11-29 | 山东省科学院海洋仪器仪表研究所 | Underwater moving target nearest distance estimation method based on single-vector hydrophone |
CN113176533B (en) * | 2021-04-28 | 2023-11-24 | 中国电子科技集团公司第三十六研究所 | Direction finding method and device for underwater acoustic communication signals and electronic equipment |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57162575A (en) * | 1981-03-31 | 1982-10-06 | Fujitsu Ltd | Vertical deflecting circuit |
FR2614427B1 (en) | 1987-04-24 | 1989-06-09 | Thomson Csf | PASSIVE SOUND TELEMETRY PROCESS |
JPS641995A (en) * | 1987-06-24 | 1989-01-06 | Nec Corp | Active sonar apparatus |
FR2647224B1 (en) * | 1989-05-22 | 1992-04-30 | Thomson Csf | METHOD FOR DETERMINING THE MOVEMENT OF A TARGET IN UNDERWATER ACOUSTICS |
DE4207716A1 (en) | 1992-03-11 | 1993-09-16 | Atlas Elektronik Gmbh | METHOD FOR DETERMINING DEPTH VALUES OF A WATERBOTTOM PROFILE |
JP2723813B2 (en) * | 1995-02-16 | 1998-03-09 | 防衛庁技術研究本部長 | Horizontal distance calculation method for the target within the convergence zone |
US6388948B1 (en) * | 2000-10-12 | 2002-05-14 | The United States Of America As Represented By The Secretary Of The Navy | Method and system for determining underwater effective sound velocity |
DE10129726C2 (en) | 2001-06-20 | 2003-08-28 | Stn Atlas Elektronik Gmbh | Method for determining target data |
DE10130297C2 (en) * | 2001-06-22 | 2003-12-24 | Stn Atlas Elektronik Gmbh | Method for determining the target position of a sound-emitting target |
DE10153443C1 (en) | 2001-10-30 | 2003-05-22 | Stn Atlas Elektronik Gmbh | Procedure for the passive location of sound-emitting targets |
-
2007
- 2007-05-14 DE DE102007022563A patent/DE102007022563A1/en not_active Withdrawn
-
2008
- 2008-04-03 AT AT08734981T patent/ATE516509T1/en active
- 2008-04-03 MY MYPI20094660A patent/MY147074A/en unknown
- 2008-04-03 CA CA002684930A patent/CA2684930A1/en not_active Abandoned
- 2008-04-03 JP JP2010507808A patent/JP4922450B2/en not_active Expired - Fee Related
- 2008-04-03 KR KR1020097026091A patent/KR20100017807A/en active IP Right Grant
- 2008-04-03 AU AU2008250691A patent/AU2008250691B2/en not_active Ceased
- 2008-04-03 WO PCT/EP2008/002640 patent/WO2008138433A1/en active Application Filing
- 2008-04-03 EP EP08734981A patent/EP2145203B1/en active Active
- 2008-04-03 ES ES08734981T patent/ES2369593T3/en active Active
-
2009
- 2009-11-01 IL IL201876A patent/IL201876A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2008138433A1 (en) | 2008-11-20 |
EP2145203A1 (en) | 2010-01-20 |
JP4922450B2 (en) | 2012-04-25 |
IL201876A (en) | 2013-03-24 |
ATE516509T1 (en) | 2011-07-15 |
IL201876A0 (en) | 2010-06-16 |
KR20100017807A (en) | 2010-02-16 |
DE102007022563A1 (en) | 2008-11-27 |
AU2008250691A1 (en) | 2008-11-20 |
AU2008250691B2 (en) | 2011-02-03 |
JP2010527012A (en) | 2010-08-05 |
EP2145203B1 (en) | 2011-07-13 |
CA2684930A1 (en) | 2008-11-20 |
ES2369593T3 (en) | 2011-12-02 |
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