NO901971L - Fremgangsmaate for bestemmelse av vannhastigheter i forhold til et fartoey. - Google Patents
Fremgangsmaate for bestemmelse av vannhastigheter i forhold til et fartoey.Info
- Publication number
- NO901971L NO901971L NO90901971A NO901971A NO901971L NO 901971 L NO901971 L NO 901971L NO 90901971 A NO90901971 A NO 90901971A NO 901971 A NO901971 A NO 901971A NO 901971 L NO901971 L NO 901971L
- Authority
- NO
- Norway
- Prior art keywords
- vessel
- pulses
- relation
- frequency
- reflected signals
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S15/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Fremgangsmåte for å bestemme kurslinje og kryss-linjekomponenten til vannhastigheten i forhold til et fartøy med kurs langs en valgt linje, hvor frem-gangsmåten innbefatter følgende trinn: (a) generering av elektroniske pulser og videre-føring av disse til en Doppler - Sonar-transduser innrettet langskips i forhold til fartøyets kjøl, (b) utstråling av pulser fra Doppler - Sonar-transduseren i et antall retninger ved en vinkel 6 i forhold til horisontalen til et vannsjikt under, men nær fartøyets overflate, og samtidig (c) utstråling av pulser fra Doppler - Sonar-transduseren i et antall retninger ved en vinkel a i forhold til horisontalplanet og større enn 6 i forhold til sjøbunnen, (d) detektering av reflekterte signaler fra pulser ved trinn (b), sammenligning av frekvensen til de reflekterte signalene med frekvensen til de sendte signalene og beregning av vannhastigheten i forhold til fartøyet, og samtidig (e) detektering av reflekterte signaler fra pulsene ved trinn (c), sammenligning av de reflekterte signalers frekvens med de sendte signalers frekvens og beregning av hastigheten til fartøyet i forhold til sjøbunnen, og (f) beregning av vannhastigheten i forhold til den valgte kurslinjen og ved rette vinkler i forhold til denne kursen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB898910184A GB8910184D0 (en) | 1989-05-04 | 1989-05-04 | Marine current determination |
Publications (2)
Publication Number | Publication Date |
---|---|
NO901971D0 NO901971D0 (no) | 1990-05-03 |
NO901971L true NO901971L (no) | 1990-11-05 |
Family
ID=10656167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO90901971A NO901971L (no) | 1989-05-04 | 1990-05-03 | Fremgangsmaate for bestemmelse av vannhastigheter i forhold til et fartoey. |
Country Status (3)
Country | Link |
---|---|
US (1) | US5050133A (no) |
GB (2) | GB8910184D0 (no) |
NO (1) | NO901971L (no) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6671223B2 (en) | 1996-12-20 | 2003-12-30 | Westerngeco, L.L.C. | Control devices for controlling the position of a marine seismic streamer |
US6229761B1 (en) * | 1999-09-17 | 2001-05-08 | The United States Of America As Represented By The Secretary Of The Navy | Estimating ship velocity through the water and over the ground |
US7504413B2 (en) * | 2004-05-06 | 2009-03-17 | Cytokinetics, Inc. | N-(4-(imidazo[1,2A]pyridin-YL)phenethyl)benzamide inhibitors of the mitotic kinesin CENP-E for treating certain cellular proliferation diseases |
US20060256653A1 (en) * | 2005-05-05 | 2006-11-16 | Rune Toennessen | Forward looking systems and methods for positioning marine seismic equipment |
AU2006202146B2 (en) * | 2006-05-19 | 2008-08-07 | Westerngeco Seismic Holdings Limited | Forward looking systems and methods for positioning marine seismic equipment |
GB2472341B (en) * | 2006-05-26 | 2011-07-13 | Westerngeco Seismic Holdings | Forward looking systems and methods for positioning marine seismic equipment |
FR2902529B1 (fr) * | 2006-06-20 | 2008-12-05 | Westerngeco Seismic Holdings | Systemes et procedes d'orientation avant pour positionner un equipement sismique marin |
US7420875B1 (en) | 2007-06-25 | 2008-09-02 | The United States Of America As Represented By The Secretary Of The Navy | Methods and systems for use of an acoustic doppler current profiler for measurement of compact jets |
US7539083B2 (en) * | 2007-06-25 | 2009-05-26 | The United States Of America As Represented By The Secretary Of The Navy | Remote voice detection system |
WO2009066057A2 (en) * | 2007-11-19 | 2009-05-28 | Geco Technology B.V. | Seismic data processing method for surface related multiple attenuation |
US8792297B2 (en) | 2010-07-02 | 2014-07-29 | Pgs Geophysical As | Methods for gathering marine geophysical data |
CN102519440A (zh) * | 2011-12-14 | 2012-06-27 | 中国人民解放军92859部队 | 海洋测绘水下目标三维可视化处理系统 |
CN102749622B (zh) * | 2012-07-03 | 2013-10-09 | 杭州边界电子技术有限公司 | 基于多波束测深的声速剖面及海底地形的联合反演方法 |
US9423519B2 (en) | 2013-03-14 | 2016-08-23 | Pgs Geophysical As | Automated lateral control of seismic streamers |
US10234578B2 (en) * | 2014-08-14 | 2019-03-19 | Pgs Geophysical As | Methods and systems to operate marine sources to avoid air in water effects |
US9886938B2 (en) | 2015-02-10 | 2018-02-06 | Navico Holding As | Transducer array having a transceiver |
US10114119B2 (en) * | 2015-05-20 | 2018-10-30 | Navico Holding As | Sonar systems and methods using interferometry and/or beamforming for 3D imaging |
US10024957B2 (en) | 2015-09-17 | 2018-07-17 | Navico Holding As | Adaptive beamformer for sonar imaging |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1798276B1 (de) * | 1968-09-19 | 1972-04-27 | Krupp Gmbh | Vorrichtung zur bestimmung der geschwindigkeit und/oder des weges von fahrzeugen durch messung des dopplereffektes |
FR2316602A1 (fr) * | 1975-07-01 | 1977-01-28 | Thomson Csf | Systeme de mesure de la vitesse et de la direction de courants d'une masse fluide |
US4138657A (en) * | 1977-10-25 | 1979-02-06 | Western Geophysical Co. Of America | Shipboard apparatus for measuring ocean currents |
FR2431137A2 (fr) * | 1977-12-20 | 1980-02-08 | Inst Francais Du Petrole | Sonar pour obtenir une representation topographique d'une surface immergee et des couches sous-jacentes |
FR2441180A1 (fr) * | 1978-11-10 | 1980-06-06 | Thomson Csf | Courantometre doppler pour grands fonds |
DE2901293C2 (de) * | 1979-01-13 | 1986-04-17 | Fried. Krupp Gmbh, 4300 Essen | Dopplerlog |
DE3514363A1 (de) * | 1985-04-20 | 1986-10-23 | Fried. Krupp Gmbh, 4300 Essen | Verfahren zur bestimmung der geschwindigkeit eines wasserfahrzeugs |
-
1989
- 1989-05-04 GB GB898910184A patent/GB8910184D0/en active Pending
-
1990
- 1990-04-26 GB GB9009428A patent/GB2232488B/en not_active Expired - Fee Related
- 1990-05-03 NO NO90901971A patent/NO901971L/no unknown
-
1991
- 1991-02-12 US US07/655,239 patent/US5050133A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB8910184D0 (en) | 1989-06-21 |
GB2232488B (en) | 1993-02-03 |
US5050133A (en) | 1991-09-17 |
GB9009428D0 (en) | 1990-06-20 |
NO901971D0 (no) | 1990-05-03 |
GB2232488A (en) | 1990-12-12 |
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