NO341058B1 - Fremgangsmåte og system for å hindre svømmere. - Google Patents

Fremgangsmåte og system for å hindre svømmere. Download PDF

Info

Publication number
NO341058B1
NO341058B1 NO20065072A NO20065072A NO341058B1 NO 341058 B1 NO341058 B1 NO 341058B1 NO 20065072 A NO20065072 A NO 20065072A NO 20065072 A NO20065072 A NO 20065072A NO 341058 B1 NO341058 B1 NO 341058B1
Authority
NO
Norway
Prior art keywords
location
acoustic
signal
sound
impulse
Prior art date
Application number
NO20065072A
Other languages
English (en)
Norwegian (no)
Other versions
NO20065072L (no
Inventor
Frederick R Dinapoli
Original Assignee
Raytheon Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Raytheon Co filed Critical Raytheon Co
Publication of NO20065072L publication Critical patent/NO20065072L/no
Publication of NO341058B1 publication Critical patent/NO341058B1/no

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
    • 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
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
    • G08B21/082—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water by monitoring electrical characteristics of the water
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Burglar Alarm Systems (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Quinoline Compounds (AREA)
NO20065072A 2004-04-16 2006-11-03 Fremgangsmåte og system for å hindre svømmere. NO341058B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56285904P 2004-04-16 2004-04-16
PCT/US2005/010644 WO2005106842A2 (en) 2004-04-16 2005-03-31 Method and system for swimmer denial

Publications (2)

Publication Number Publication Date
NO20065072L NO20065072L (no) 2006-11-15
NO341058B1 true NO341058B1 (no) 2017-08-14

Family

ID=34967777

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20065072A NO341058B1 (no) 2004-04-16 2006-11-03 Fremgangsmåte og system for å hindre svømmere.

Country Status (8)

Country Link
US (1) US7254092B2 (https=)
EP (1) EP1738352B1 (https=)
JP (1) JP4629727B2 (https=)
KR (1) KR101216141B1 (https=)
AU (1) AU2005239296B2 (https=)
IL (1) IL178312A (https=)
NO (1) NO341058B1 (https=)
WO (1) WO2005106842A2 (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7254092B2 (en) * 2004-04-16 2007-08-07 Raytheon Company Method and system for swimmer denial
GB0707640D0 (en) * 2007-04-20 2007-05-30 Strathclyde Acoustic deterrence
JP5317177B2 (ja) * 2008-11-07 2013-10-16 日本電気株式会社 目標物探知装置及び目標物探知制御プログラム、目標物探知方法
US8374055B2 (en) * 2009-06-19 2013-02-12 The United States Of America, As Represented By The Secretary Of The Navy Acoustic communication and locating devices for underground mines
US8403106B2 (en) * 2010-03-25 2013-03-26 Raytheon Company Man-portable non-lethal pressure shield
US20110235465A1 (en) * 2010-03-25 2011-09-29 Raytheon Company Pressure and frequency modulated non-lethal acoustic weapon
WO2013126054A1 (en) * 2012-02-22 2013-08-29 Halliburton Energy Services, Inc. Downhole telemetry systems and methods with time-reversal pre-equalization
FR3060762B1 (fr) * 2016-12-20 2020-06-12 Thales Systeme reparti modulaire de detection acoustique des menaces sous-marines sur une zone sensible
CN108089155B (zh) * 2017-12-28 2021-04-02 西北工业大学 一种深海环境下单水听器声源被动定位方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL112696A0 (en) * 1995-02-19 1995-05-26 Scient Technologies Coordinato Method and apparatus for temporal focusing
US6005827A (en) * 1995-03-02 1999-12-21 Acuson Corporation Ultrasonic harmonic imaging system and method
EP0842508B1 (fr) * 1995-07-13 2000-01-12 Societe Pour Les Applications Du Retournement Temporel Procede et dispositif de focalisation d'ondes acoustiques
US7254092B2 (en) * 2004-04-16 2007-08-07 Raytheon Company Method and system for swimmer denial

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUPERMAN W ET AL: "Phase conjugation in the Ocean: Experimental demonstration of an Acoustic time-reversal Mirror", Journal of the Acoustic Society of America, American Institute of Physics, New York, US, vol. 103, no. 1, Jan. 1998, pp. 25-40., Dated: 01.01.0001 *

Also Published As

Publication number Publication date
JP2007535032A (ja) 2007-11-29
KR20070009649A (ko) 2007-01-18
NO20065072L (no) 2006-11-15
EP1738352A2 (en) 2007-01-03
KR101216141B1 (ko) 2012-12-27
US7254092B2 (en) 2007-08-07
AU2005239296A1 (en) 2005-11-10
WO2005106842A2 (en) 2005-11-10
EP1738352B1 (en) 2016-11-16
US20050232084A1 (en) 2005-10-20
JP4629727B2 (ja) 2011-02-09
IL178312A0 (en) 2007-02-11
IL178312A (en) 2010-12-30
AU2005239296A2 (en) 2005-11-10
AU2005239296B2 (en) 2010-09-16
WO2005106842A3 (en) 2006-02-16

Similar Documents

Publication Publication Date Title
Kuperman et al. Shallow-water acoustics
Kim et al. Echo-to-reverberation enhancement using a time reversal mirror
Ainslie Principles of sonar performance modelling
NO341058B1 (no) Fremgangsmåte og system for å hindre svømmere.
Kuperman et al. Ocean acoustics, matched-field processing and phase conjugation
CN114662280B (zh) 一种运动平台下宽带信号海底空时混响建模和仿真方法
Shimura A study on the focusing property of time reversal waves in shallow water
Porter et al. Fundamentals of ocean acoustics
Kuperman Underwater acoustics
Jiang et al. Sound field fluctuations in shallow water due to nonlinear internal waves and determination of their parameters
Real et al. Narval2019: Ocean acoustic measurements in the barents sea polar front
Nielsen et al. Observation and interpretation of ocean waveguide impact on long-range, underwater acoustic propagation of recorded hydrophone signals
Zhang Directionality and coherence of underwater noise and their impact on sonar array performance
Dosso et al. Seismo-acoustic propagation in an ice-covered arctic ocean environment
Dol et al. Acoustic channel characterization in the Baltic Sea and in the North Sea
Kim et al. A method for robust time-reversal focusing in a fluctuating ocean
Duncan et al. Using offshore seismic surveys as acoustic sources of opportunity for geoacoustic inversion
Akal Effects of environmental variability on acoustic propagation loss in shallow water
Tang et al. Temporal coherence and stability of bottom interacting sound pulses
RU31455U1 (ru) Устройство для обнаружения гидролокационных сигналов и маскировки их отражения от морского подвижного объекта
Nam et al. Dereverberation of shallow‐water, high‐frequency signals
Jaffe High‐frequency sound variation in a coastal environment
Smedsrud et al. Characterization of long-range time-varying underwater acoustic communication channels
Buckingham et al. Spatial coherence of high‐frequency (67‐kHz) acoustic fluctuations in fully developed turbulence
de Moustier et al. Temporal model of high‐frequency seafloor acoustic backscatter

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees