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WO2008105932A3 - System and method for forward looking sonar - Google Patents

System and method for forward looking sonar Download PDF

Info

Publication number
WO2008105932A3
WO2008105932A3 PCT/US2007/078577 US2007078577W WO2008105932A3 WO 2008105932 A3 WO2008105932 A3 WO 2008105932A3 US 2007078577 W US2007078577 W US 2007078577W WO 2008105932 A3 WO2008105932 A3 WO 2008105932A3
Authority
WO
WIPO (PCT)
Prior art keywords
region
complex samples
forward looking
image data
pulse
Prior art date
Application number
PCT/US2007/078577
Other languages
French (fr)
Other versions
WO2008105932A2 (en
Inventor
Paul Kraeutner
Wen Xu
Original Assignee
Teledyne Rd Instr Inc
Paul Kraeutner
Wen Xu
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 Teledyne Rd Instr Inc, Paul Kraeutner, Wen Xu filed Critical Teledyne Rd Instr Inc
Publication of WO2008105932A2 publication Critical patent/WO2008105932A2/en
Publication of WO2008105932A3 publication Critical patent/WO2008105932A3/en

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
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

Embodiments of a system and method for a forward looking sonar, for example, configured for use in an underwater vehicle, are disclosed. One embodiment includes a method of imaging a region. The method includes transmitting at least one acoustic pulse from a transducer and receiving a portion of the pulse scattered from a region. The method further includes generating a multi-channel signal based on the received portion of the pulse scattered from the region, sampling the scattering signal to generate a plurality of complex samples, and forming a plurality of beams in a horizontal plane based on the complex samples. The plurality of complex samples may be processed to obtain image data comprising angles of arrival from scattering components in a vertical plane for each horizontal beam. An image may be generated based on the image data. Other embodiments may include apparatuses such as sonar systems.
PCT/US2007/078577 2006-09-15 2007-09-14 System and method for forward looking sonar WO2008105932A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84509406P 2006-09-15 2006-09-15
US60/845,094 2006-09-15

Publications (2)

Publication Number Publication Date
WO2008105932A2 WO2008105932A2 (en) 2008-09-04
WO2008105932A3 true WO2008105932A3 (en) 2008-10-30

Family

ID=39712366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/078577 WO2008105932A2 (en) 2006-09-15 2007-09-14 System and method for forward looking sonar

Country Status (1)

Country Link
WO (1) WO2008105932A2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8300499B2 (en) 2009-07-14 2012-10-30 Navico, Inc. Linear and circular downscan imaging sonar
US8305840B2 (en) 2009-07-14 2012-11-06 Navico, Inc. Downscan imaging sonar
US9142206B2 (en) 2011-07-14 2015-09-22 Navico Holding As System for interchangeable mounting options for a sonar transducer
US9182486B2 (en) 2011-12-07 2015-11-10 Navico Holding As Sonar rendering systems and associated methods
US9268020B2 (en) 2012-02-10 2016-02-23 Navico Holding As Sonar assembly for reduced interference
US9354312B2 (en) 2012-07-06 2016-05-31 Navico Holding As Sonar system using frequency bursts
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
US10151829B2 (en) 2016-02-23 2018-12-11 Navico Holding As Systems and associated methods for producing sonar image overlay
JP2020510833A (en) * 2017-03-03 2020-04-09 ビ−エイイ− システムズ パブリック リミテッド カンパニ−ＢＡＥ ＳＹＳＴＥＭＳ ｐｌｃ Transceiver
EP3370081A1 (en) * 2017-03-03 2018-09-05 BAE SYSTEMS plc A digital transceiver
US11367425B2 (en) 2017-09-21 2022-06-21 Navico Holding As Sonar transducer with multiple mounting options
US11143758B2 (en) 2017-10-13 2021-10-12 Navico Holding As Sonar transducer performance optimization
US11724787B2 (en) 2019-08-07 2023-08-15 Raytheon Company Methods and systems for determining a depth of an object
CN111487628B (en) * 2020-05-19 2022-05-03 中国科学院声学研究所 A "Zero Degree" Interference Suppression Method for Down-Looking Multi-beam Synthetic Aperture Imaging Sonar
CN116380079B (en) * 2023-04-12 2025-03-25 东南大学 An underwater SLAM method integrating forward-looking sonar and ORB-SLAM3
CN116908822B (en) * 2023-06-20 2024-11-19 哈尔滨工程大学 Test signal acquisition device and circuit test and real-time analysis system of multichannel sonar transmitter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200931A (en) * 1991-06-18 1993-04-06 Alliant Techsystems Inc. Volumetric and terrain imaging sonar
US5808967A (en) * 1996-10-07 1998-09-15 Rowe-Deines Instruments Incorporated Two-dimensional array transducer and beamformer
US5812494A (en) * 1997-06-02 1998-09-22 The United States Of America As Represented By The Secretary Of The Navy Wide-angle, forward-looking bathymetric mapping
US6130641A (en) * 1998-09-04 2000-10-10 Simon Fraser University Imaging methods and apparatus using model-based array signal processing
GB2417081A (en) * 2004-08-10 2006-02-15 Furuno Electric Co Forward looking sonar having first and second receiving beams

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200931A (en) * 1991-06-18 1993-04-06 Alliant Techsystems Inc. Volumetric and terrain imaging sonar
US5808967A (en) * 1996-10-07 1998-09-15 Rowe-Deines Instruments Incorporated Two-dimensional array transducer and beamformer
US5812494A (en) * 1997-06-02 1998-09-22 The United States Of America As Represented By The Secretary Of The Navy Wide-angle, forward-looking bathymetric mapping
US6130641A (en) * 1998-09-04 2000-10-10 Simon Fraser University Imaging methods and apparatus using model-based array signal processing
GB2417081A (en) * 2004-08-10 2006-02-15 Furuno Electric Co Forward looking sonar having first and second receiving beams

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KRAEUTNER P ET AL: "Rethinking Forward-Looking Sonar for AUV's: Combining Horizontal Beamforming with Vertical Angle-of-Arrival Estimation", OCEANS 2007, IEEE, PISCATAWAY, NJ, USA, 29 September 2007 (2007-09-29), pages 1 - 7, XP031229254 *

Also Published As

Publication number Publication date
WO2008105932A2 (en) 2008-09-04

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