Ongoing Developments in Side Scan Sonar The pursuit of better Range, Resolution and Speed
|
|
- Britney Jody Garrett
- 6 years ago
- Views:
Transcription
1 Ongoing Developments in Side Scan Sonar The pursuit of better Range, Resolution and Speed Nick Lawrence EdgeTech Advances in Seafloor-mapping Sonar Conference 30 th November 2009
2 Company Profile EdgeTech (formerly EG&G Marine Instruments) Started in 1966 by Doc Edgerton Offices in Massachusetts and Florida Sister division to ORE Offshore 3 main product lines: Side Scan Sonars (SSS) Sub-Bottom Profilers (SBP) Combined SSS/SBP Sonar Systems
3 Ongoing Developments? Technologies that have been around long enough that we just accept them as normal. Technologies that are currently available Not all of which are widely adopted Where next?
4 Range Definition of maximum Range? See an echo from a target (and how large?) Delineate shadows behind the target, so as to aid identification. Either way, it s a matter of signal strength and noise.
5 What affects the Range? Signal Strength Absorption (depends on frequency, water temperature and salinity). Altitude (grazing angle reflected energy) Noise Water Depth (surface noise /backscatter) Ambient Noise System Noise
6 Absorption Regional Differences
7 Absorption
8 Improving Signal Strength Wideband, Low amplitude, linear FM chirp pulses Provide high energy signals, with superior resolution CW: Tx power typ. 1kW, Pulse length ~ 50us Energy = 1e3 * 50e-6 = 0.05 Joules Resolution = 3.75cm (depends on pulse length) CHIRP: Tx 200W, pulse length ~3ms, BW = 40Khz Energy = 200*3e-3 = 0.6 Joules Resolution = 1.8cm (depends on bandwidth)
9 Reducing Noise Digital Towfish no cable noise Linear FM chirp pulses (again!) Implementation of matched filter processing out of band rejection > 70dB Wideband front end analog electronics excellent linearity and no phase distortion
10 More Signal Less Noise. Better Range
11 Resolution Across Track Resolution is really not the issue Frequency dependant Typically side scan sonars have plenty of across track resolution Along Track Resolution is the real issue!
12 Resolution Along Track: The simplified case Beam width is determined by length of the sonar array Longer arrays with narrower beams provide finer spatial resolution Definition of beamwidth See App note on
13 Resolution Along Track: A better model
14 Resolution Along Track: Even that is not everything!
15 The classic dilemma: Near Field vrs Far Field Best resolution is limited by the length of the array But remember what happens with a short array!
16 Resolution: Multi-beam SSS Use highest possible frequency Receive Beams Transmit beam Longest possible arrays d Beam forming techniques
17 Resolution: Synthetic Aperture SAS overcomes the array length limitation by synthesizing an extremely long array Coherently combines data from many successive pings Resolution is no longer a function of physical array length Because array length is no longer an issue, neither is frequency Can use lower frequencies to increase range Physical Aperture Sub-Element Synthetic Aperture
18 The EdgeTech solution: Dynamic Focussing What if we segment the array and stay in the near field as long as possible... so we will get the best resolution possible at a given range
19 The EdgeTech solution: Dynamic Focussing
20 Take Advantage of this Multi- Element Array in Another Way What if we curve the segmented the array? Why do we want to do this? Because sound does not come back to the array in a flat plane it s curved slightly!
21
22
23
24 Application of Dynamic Focusing Various configurations have been built Different Frequencies Different number of segments Variable length segments Not necessarily symmetrical
25 300Khz, 8 Elements Non Focused
26 Focused
27 Speed Why do we care? Better imaging with more hits on a target Specifications IHO Manual on Hydrography M-13 Ch 4 the minimum number of returns to make a discernible mark on the trace is taken as five NOAA The hydrographer shall tow the side scan sonar at a speed such that an object 1 m on a side on the sea floor would be independently ensonified a minimum of three times per pass. The general rule is 3 hits on a 1m target per pass
28 Speed Conventional Sonar Conventional side scan sonar tow speeds typically limited to 4-5 knots or less... Low probability of target detection or recognition even at moderate (4 knot) speeds T = (2*Rmax) C Range Scale = Rmax T x Rx Period T x
29 Speed Conventional Sonar Aim is for 3 hits on a 1m target Based on travelling a distance d between pings Typical: d = 0.33 m, Range R = 125 m V 1p <= 2 m/s (3.9 knots) At longer ranges, you have to go even slower.
30 Multipulse Transmit Sequence
31 Multipulse Timing T = (2*Rmax)/C Range Scale = Rmax T x A Rx A Period T x A tp T x B Rx B Period T x B tp T x C Rx C Period T x C tp T x D Rx D Period T x D tp
32 Speed Multipulse Aim is for 3 hits on a 1m target Based on travelling a distance d between pings Typical: d = 0.33 m, Range R = 125 m V 1p <= 2 m/s (3.9 knots) V 2p <= 4 m/s (7.8 knots) V 3p <= 6 m/s (11.7 knots) V 4p <= 8 m/s (15.6 knots) Or more hits on the same target size, at the same speed.
33 Multipulse Technical Issues The sonar system must be able to: Process receive data whilst transmitting Handle returns from all ranges simultaneously (so no analogue TVG can be applied) Provide separate output data streams for each transmit pulse Once again it is coded pulses and matched filter processing that is required (Chirp!)
34 Receive while Transmitting
35 Pulse Separation
36 Receive data Processing The receiver uses digital (DSP) replica correlation techniques to reject out of band echo energy. correlation processing provides high resolution, pulse compressed, high signal to noise, output data. provides an output data stream for each pulse.
37 Pulse Separation Processing
38 Multipulse Data Examples
39 Results Comparison 1 Image of a shipwreck, Conventional sonar Across Track Range (meters) Fwd
40 Results Comparison 1 Multipulse Image of a shipwreck, 3 Pulses
41 Image of a 2m x 2m target, 1 Pulse Fwd
42 Multipulse image of a 2m x 2m target, 4 Pulses
43 3 pulse versus 1 pulse
44 Four pulse image of sand waves and rocks
45 Four pulse image of sand waves and rocks Zoomed
46 One pulse image of sand waves and rocks Zoomed
47 4700 Data Examples
48 4700, 600Khz, 1 pulse, Speed 3.7 knots
49 4700, 600Khz, 1 pulse, Speed 7.5 knots
50 4700HF, 2 pulses, same area as 1 pulse, speed 7.0kts
51 4700, HF 3 pulses, same area as 1 pulse, speed 7.3 kts, first screen,
52 4700HF, 3 pulses, same area as 1 pulse, second screen, 7.3 kts
53 Products technology table Chirp Dynamic Focusing Multipulse 4125 CW SP 4125 SP 4200-SP SP 4200-MP DFX 3 AUV / ROV Systems Option Up to 3
54 4200 Series
55 4200 Series 4200-SP (Single Pulse) Digital dual simultaneous frequency side scan sonar system 4200-MP (Multi-Pulse) Digital dual simultaneous frequency side scan sonar system with added High Speed Mode allowing tow speeds of up to 10 knots while meeting 3 hits on a 1 m target. 100/400, 300/600 or 300/900 khz Choice of rack mount, portable or 3rd party interface for topside processor Choice of stainless steel (2000m rated) or lightweight aluminum (500m rated) towfish Pressure, temperature, magnetometer, acoustic responder, depressor and custom sensors available as options
56 4200 Series
57 What next?
SYSTEM 5900 SIDE SCAN SONAR
SYSTEM 5900 SIDE SCAN SONAR HIGH-RESOLUTION, DYNAMICALLY FOCUSED, MULTI-BEAM SIDE SCAN SONAR Klein Marine System s 5900 sonar is the flagship in our exclusive family of multi-beam technology-based side
More informationSide-Scan Sonar Presentation STS
Training Module Side-Scan Sonar Presentation STS SIDE-SCAN SONAR SAFETY Training Module Content: This module includes information on: Types of Side-Scan Benefits and Disadvantages System Configuration
More informationSonar advancements for coastal and maritime surveys
ConférenceMéditerranéenneCôtièreetMaritime EDITION1,HAMMAMET,TUNISIE(2009) CoastalandMaritimeMediterraneanConference Disponibleenligne http://www.paralia.fr Availableonline Sonar advancements for coastal
More informationHIGH RESOLUTION MULTI-BEAM SIDE LOOKING SONAR ANDRZEJ ELMINOWICZ, LEONARD ZAJĄCZKOWSKI
HIGH RESOLUTION MULTI-BEAM SIDE LOOKING SONAR ANDRZEJ ELMINOWICZ, LEONARD ZAJĄCZKOWSKI R&D Marine Technology Centre Dickmana 62, 81-109 Gdynia, POLAND email: andrzeje@ctm.gdynia.pl The conventional side
More informationTeledyne Marine Acoustic Imagining
RESON SeaBat high performance sonars for long range object detection and MCM applications Navigation, object avoidance & up close inspection with BlueView Greg Probst Sales Manager, Defense Teledyne Marine
More informationThe Potential of Synthetic Aperture Sonar in seafloor imaging
The Potential of Synthetic Aperture Sonar in seafloor imaging CM 2000/T:12 Ron McHugh Heriot-Watt University, Department of Computing and Electrical Engineering, Edinburgh, EH14 4AS, Scotland, U.K. Tel:
More informationKONGSBERG seafloor-mapping echosounders
KONGSBERG seafloor-mapping echosounders Berit Horvei WORLD CLASS through people, technology and dedication AGENDA Historical overview EM series Multibeam echosounder and Subbottom profiler Topside software.
More informationUSER S MANUAL. Revision: 2.0 / February Web:
DISCOVER 4200-MP SIDE SCAN PROCESSOR SOFTWARE USER S MANUAL Revision: 2.0 / February 2008 Email: sales@edgetech.com Web: http://www.edgetech.com 4 Little Brook Road West Wareham, MA 02576 Tel: (508) 291-0057
More informationThree-dimensional investigation of buried structures with multi-transducer parametric sub-bottom profiler as part of hydrographical applications
Three-dimensional investigation of buried structures with multi-transducer parametric sub-bottom profiler as part Jens LOWAG, Germany, Dr. Jens WUNDERLICH, Germany, Peter HUEMBS, Germany Key words: parametric,
More informationBroadband Temporal Coherence Results From the June 2003 Panama City Coherence Experiments
Broadband Temporal Coherence Results From the June 2003 Panama City Coherence Experiments H. Chandler*, E. Kennedy*, R. Meredith*, R. Goodman**, S. Stanic* *Code 7184, Naval Research Laboratory Stennis
More informationPRINCIPLE OF SEISMIC SURVEY
PRINCIPLE OF SEISMIC SURVEY MARINE INSTITUTE Galway, Ireland 29th April 2016 Laurent MATTIO Contents 2 Principle of seismic survey Objective of seismic survey Acquisition chain Wave propagation Different
More informationExperiences with Hydrographic Data Budgets Using a Low-logistics AUV Platform. Thomas Hiller Teledyne Marine Systems
Experiences with Hydrographic Data Budgets Using a Low-logistics AUV Platform Thomas Hiller Teledyne Marine Systems 1 Teledyne Marine Systems Strategic Business Units 2 What is the Gavia? The Gavia is
More informationSemi-buried seabed object detection: Sonar vs. Geophysical methods
Semi-buried seabed object detection: Sonar vs. Geophysical methods Dino DRAGUN, Croatia, Lieselot NOPPE, Belgium, Pierre SERPE, Belgium, Emeline CARON, France, Astrid ROBERT, France Key words: Site Investigation,
More informationModeling of underwater sonar barriers
Acoustics 8 Paris Modeling of underwater sonar barriers A. Elminowicz and L. Zajaczkowski R&D Marine Technology Centre, Ul. Dickmana 62, 81-19 Gdynia, Poland andrzeje@ctm.gdynia.pl 3429 Acoustics 8 Paris
More informationDP Operator Course Training Manual HPR
- Hydroacoustic Position Reference System consists of transducer(s) onboard a vessel communicating with transponder(s) placed on the seabed. The transducers are lowered beneath the hull, and when a transponder
More informationTritech International Vehicle Sonar Developments
Tritech International Vehicle Sonar Developments Mike Broadbent Business Development Manager Oceanology 2012 - UUVS Overview About Tritech Mechanical Scanning Sonar - Improving the performance High Speed
More informationRemote Sediment Property From Chirp Data Collected During ASIAEX
Remote Sediment Property From Chirp Data Collected During ASIAEX Steven G. Schock Department of Ocean Engineering Florida Atlantic University Boca Raton, Fl. 33431-0991 phone: 561-297-3442 fax: 561-297-3885
More informationSIS-1624 Dual Frequency Side Scan
The Teledyne Benthos SIS-1624 Series Side Scan Sonar is a fully integrated system that uses advanced Chirp and Continuous Wave (CW) technologies, dual frequency and an advanced highspeed communication
More informationSynthetic Aperture Radar
Synthetic Aperture Radar Picture 1: Radar silhouette of a ship, produced with the ISAR-Processor of the Ocean Master A Synthetic Aperture Radar (SAR), or SAR, is a coherent mostly airborne or spaceborne
More informationSWAMSI: Bistatic CSAS and Target Echo Studies
SWAMSI: Bistatic CSAS and Target Echo Studies Kent Scarbrough Advanced Technology Laboratory Applied Research Laboratories The University of Texas at Austin P.O. Box 8029 Austin, TX 78713-8029 phone: (512)
More informationFundamental Concepts of Radar
Fundamental Concepts of Radar Dr Clive Alabaster & Dr Evan Hughes White Horse Radar Limited Contents Basic concepts of radar Detection Performance Target parameters measurable by a radar Primary/secondary
More informationSonar Detection and Classification of Buried or Partially Buried Objects in Cluttered Environments Using UUVs
Sonar Detection and Classification of Buried or Partially Buried Objects in Cluttered Environments Using UUVs Steven G. Schock Department of Ocean Engineering Florida Atlantic University Boca Raton, Fl.
More informationNow add true dual channel side scan and Sub Bottom profile to your hydrographic surveys.
New ROSS 4900 Series Side Scan Sonar and Sub Bottom profiler. Now add true dual channel side scan and Sub Bottom profile to your hydrographic surveys. Laboratories, well known for its line of multi channel
More informationUltrasound Beamforming and Image Formation. Jeremy J. Dahl
Ultrasound Beamforming and Image Formation Jeremy J. Dahl Overview Ultrasound Concepts Beamforming Image Formation Absorption and TGC Advanced Beamforming Techniques Synthetic Receive Aperture Parallel
More informationUnder Water Systems. Sidescan SAS image mapping for Automatic Detection and Classification
0 Sidescan SAS image mapping for Automatic Detection and Classification Plan Sidescan SAS image mapping for ADC Sidescan Synthetic Aperture Sonar Images Interest of SAS for automatic detection and classification
More information27/11/2013' OCEANOGRAPHIC APPLICATIONS. Acoustic Current Meters
egm502 seafloor mapping lecture 17 water column applications OCEANOGRAPHIC APPLICATIONS Acoustic Current Meters An acoustic current meter is a set of transducers fixed in a frame. Acoustic current meters
More informationPerformance assessment of the MUSCLE synthetic aperture sonar
SCIENCE AND TECHNOLOGY ORGANIZATION CENTRE FOR MARITIME RESEARCH AND EXPERIMENTATION Reprint Series Performance assessment of the MUSCLE synthetic aperture sonar Michel Couillard, Johannes Groen, Warren
More informationKongsberg Maritime Product overview
Kongsberg Maritime Product overview / 1 / 1-Nov-12 Frequency Range Coverage 125,250,500kHz 0.5-200m 12xD 200-400kHz 0.5-500m 5.5xD / 140-200 deg 300 khz 0.5-270m 4-10xD / 130-200 deg 70-100 khz 3-2000m
More informationLecture 9. Radar Equation. Dr. Aamer Iqbal. Radar Signal Processing Dr. Aamer Iqbal Bhatti
Lecture 9 Radar Equation Dr. Aamer Iqbal 1 ystem Losses: Losses within the radar system itself are from many sources. everal are described below. L PL =the plumbing loss. L PO =the polarization loss. L
More informationSurvey Sensors. 18/04/2018 Danny Wake Group Surveyor i-tech Services
Survey Sensors 18/04/2018 Danny Wake Group Surveyor i-tech Services What do we need sensors for? For pure hydrographic surveying: Depth measurements Hazard identification Seabed composition Tides & currents
More informationBurial Depth Determination of Cables Using Acoustics Requirements, Issues and Strategies
Burial Depth Determination of Cables Using Acoustics Requirements, Issues and Strategies Jens WUNDERLICH 1, Jan Arvid INGULFSEN 2, Sabine MÜLLER 1 Cable + Survey Requirements Cable Acoustics Survey Strategies
More informationAcoustics Digital, Spread Spectrum, DSP, Wideband What does this mean for Real World DP Operations? Jonathan Davis Sonardyne Inc
Subsea Positioning & Communications Acoustics Digital, Spread Spectrum, DSP, Wideband What does this mean for Real World DP Operations? Jonathan Davis Sonardyne Inc Outline Introduction Signal Processing
More informationDigital Sounder: HF Diagnostics Module:Ionosonde Dual Channel ( ) Eight Channel ( )
CENTER FOR REMOTE SE NSING, INC. Digital Sounder: HF Diagnostics Module:Ionosonde Dual Channel (001-2000) Eight Channel (004-2006) 2010 Center for Remote Sensing, Inc. All specifications subject to change
More informationUsing Frequency Diversity to Improve Measurement Speed Roger Dygert MI Technologies, 1125 Satellite Blvd., Suite 100 Suwanee, GA 30024
Using Frequency Diversity to Improve Measurement Speed Roger Dygert MI Technologies, 1125 Satellite Blvd., Suite 1 Suwanee, GA 324 ABSTRACT Conventional antenna measurement systems use a multiplexer or
More informationSYSTEM ARCHITECTURE OF RADAR NETWORK FOR MONITORING OF HAZARDOUD WEATHER
SYSTEM ARCHITECTURE OF RADAR NETWORK FOR MONITORING OF HAZARDOUD WEATHER 2008. 11. 21 HOON LEE Gwangju Institute of Science and Technology &. CONTENTS 1. Backgrounds 2. Pulse Compression 3. Radar Network
More informationAntenna Measurements using Modulated Signals
Antenna Measurements using Modulated Signals Roger Dygert MI Technologies, 1125 Satellite Boulevard, Suite 100 Suwanee, GA 30024-4629 Abstract Antenna test engineers are faced with testing increasingly
More informationPhased Array Velocity Sensor Operational Advantages and Data Analysis
Phased Array Velocity Sensor Operational Advantages and Data Analysis Matt Burdyny, Omer Poroy and Dr. Peter Spain Abstract - In recent years the underwater navigation industry has expanded into more diverse
More informationEchosounders TECHNOLOGY FOR SUSTAINABLE FISHERIES
Echosounders TECHNOLOGY FOR SUSTAINABLE FISHERIES ES80 ECHOSOUNDER SIMRAD has manufactured fishfinders for more than 70 years and has 25 years of experience using Split beam technology. The first Split
More informationThe limits of spatial resolution achievable using a 30kHz multibeam sonar: model predictions and field results.
The limits of spatial resolution achievable using a 30kHz multibeam sonar: model predictions and field results. John E. Hughes Clarke (1), James V. Gardner (2), Mike Torresan (2), and Larry Mayer (1) (1)
More informationRobots at Work The growing role of robotic systems in the Oceans and Subsea Engineering. David Brookes Senior Advisor, Upstream Engineering, BP
Robots at Work The growing role of robotic systems in the Oceans and Subsea Engineering David Brookes Senior Advisor, Upstream Engineering, BP Synopsis ROV s History Current Capabilities and Examples AUV
More informationRECOMMENDATION ITU-R SA.1628
Rec. ITU-R SA.628 RECOMMENDATION ITU-R SA.628 Feasibility of sharing in the band 35.5-36 GHZ between the Earth exploration-satellite service (active) and space research service (active), and other services
More informationShallow Water Array Performance (SWAP): Array Element Localization and Performance Characterization
Shallow Water Array Performance (SWAP): Array Element Localization and Performance Characterization Kent Scarbrough Advanced Technology Laboratory Applied Research Laboratories The University of Texas
More informationUltrasound Bioinstrumentation. Topic 2 (lecture 3) Beamforming
Ultrasound Bioinstrumentation Topic 2 (lecture 3) Beamforming Angular Spectrum 2D Fourier transform of aperture Angular spectrum Propagation of Angular Spectrum Propagation as a Linear Spatial Filter Free
More informationSimrad SX90 Long range high definition sonar system
Simrad SX90 Long range high definition sonar system 360 omnidirectional sonar 90 vertical tip mode 20 to 30 KHz operational frequency Narrow beams Selectable beam width Hyperbolic FM Large dynamic range
More informationA Hybrid Indoor Tracking System for First Responders
A Hybrid Indoor Tracking System for First Responders Precision Indoor Personnel Location and Tracking for Emergency Responders Technology Workshop August 4, 2009 Marc Harlacher Director, Location Solutions
More informationCORE B265LH (Low & High-Frequency)
CHIRP Upgrade Your Sounder to a Serious Fishfinding Machine! Only possible with the use of an AIRMAR broadband transducer. CHIRP TECHNOLOGY 5 to 10 times greater detail and resolution 10 to 1,000 times
More informationELEC RADAR FRONT-END SUMMARY
ELEC Radar Front-End is designed for FMCW (including CW) radar application. The output frequency of each RX provides range, speed, and amplitude information to DSP. It will detect target azimuth angle
More informationModern radio techniques
Modern radio techniques for probing the ionosphere Receiver, radar, advanced ionospheric sounder, and related techniques Cesidio Bianchi INGV - Roma Italy Ionospheric properties related to radio waves
More informationDetection of Targets in Noise and Pulse Compression Techniques
Introduction to Radar Systems Detection of Targets in Noise and Pulse Compression Techniques Radar Course_1.ppt ODonnell 6-18-2 Disclaimer of Endorsement and Liability The video courseware and accompanying
More informationBRINGING CLARITY TO THE WORLD BELOW THE COMPLETE UNDERWATER MAPPING PRODUCT RANGE
BRINGING CLARITY TO THE WORLD BELOW THE COMPLETE UNDERWATER MAPPING PRODUCT RANGE BRINGING CLARITY TO THE WORLD BELOW OUR MISSION We shall earn the respect and recognition for our dedication to provide
More informationMid-Frequency Reverberation Measurements with Full Companion Environmental Support
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Mid-Frequency Reverberation Measurements with Full Companion Environmental Support Dajun (DJ) Tang Applied Physics Laboratory,
More informationIncreased Safety and Efficiency using 3D Real-Time Sonar for Subsea Construction
Increased Safety and Efficiency using 3D Real-Time Sonar for Subsea Construction Chief Technology Officer CodaOctopus Products, Ltd. Booth A33a 2D, 3D and Real-Time 3D (4D) Sonars? 2D Imaging 3D Multibeam
More informationScalable Front-End Digital Signal Processing for a Phased Array Radar Demonstrator. International Radar Symposium 2012 Warsaw, 24 May 2012
Scalable Front-End Digital Signal Processing for a Phased Array Radar Demonstrator F. Winterstein, G. Sessler, M. Montagna, M. Mendijur, G. Dauron, PM. Besso International Radar Symposium 2012 Warsaw,
More informationOutline. Introduction to Sonar. Outline. History. Introduction Basic Physics Underwater sound INF-GEO4310. Position Estimation Signal processing
Outline Outline Introduction to Sonar INF-GEO4310 Roy Edgar Hansen Department of Informatics, University of Oslo October 2010 1 Basics Introduction Basic Physics 2 Sonar Sonar types Position Estimation
More informationEffects of snaking for a towed sonar array on an AUV
Lorentzen, Ole J., Effects of snaking for a towed sonar array on an AUV, Proceedings of the 38 th Scandinavian Symposium on Physical Acoustics, Geilo February 1-4, 2015. Editor: Rolf J. Korneliussen, ISBN
More informationTable of Contents. About SAGE Millimeter, Inc...1 Radar basics and related SAGE Millimeter microwave sensor technologies... 2
A. INTRODUCTION About SAGE Millimeter, Inc.....1 Radar basics and related SAGE Millimeter microwave sensor technologies... 2 B. OSOCILLATORS (SOL Series) K band mechanically tuned Gunn oscillators......5
More informationSONARMITE v4.0 MTX sweep version - PORTABLE BLUETOOTH ECHO SOUNDER
SONARMITE v4.0 MTX sweep version - PORTABLE BLUETOOTH ECHO SOUNDER Introduction The SonarMite Echo Sounder was the result of nearly two years research and development to further extend the boundaries of
More informationTHE UTILITY OF SYNTHETIC APERTURE SONAR IN SEAFLOOR IMAGING MARCIN SZCZEGIELNIAK
THE UTILITY OF SYNTHETIC APERTURE SONAR IN SEAFLOOR IMAGING MARCIN SZCZEGIELNIAK University of Technology and Agriculture in Bydgoszcz 7 Kalisky Ave, 85-79 Bydgoszcz, Poland e-mail: marcinszczegielniak@poczta.onet.pl
More informationTime Reversal Ocean Acoustic Experiments At 3.5 khz: Applications To Active Sonar And Undersea Communications
Time Reversal Ocean Acoustic Experiments At 3.5 khz: Applications To Active Sonar And Undersea Communications Heechun Song, P. Roux, T. Akal, G. Edelmann, W. Higley, W.S. Hodgkiss, W.A. Kuperman, K. Raghukumar,
More informationInverse Synthetic Aperture Imaging using a 40 khz Ultrasonic Laboratory Sonar
Inverse Synthetic Aperture Imaging using a 40 Ultrasonic Laboratory Sonar A. J. Wilkinson, P. K. Mukhopadhyay, N. Lewitton and M. R. Inggs Radar Remote Sensing Group Department of Electrical Engineering
More informationCLEARER. DEEPER. BROADER. Pocket / Keel-Mount GAME CHANGING TECHNOLOGY.
CHIRP Upgrade Your Sounder to a Serious Fishfinding Machine! Only possible with the use of an AIRMAR broadband transducer. CHIRP TECHNOLOGY 5 to 10 times greater detail and resolution 10 to 1,000 times
More informationDIGITAL BEAM-FORMING ANTENNA OPTIMIZATION FOR REFLECTOR BASED SPACE DEBRIS RADAR SYSTEM
DIGITAL BEAM-FORMING ANTENNA OPTIMIZATION FOR REFLECTOR BASED SPACE DEBRIS RADAR SYSTEM A. Patyuchenko, M. Younis, G. Krieger German Aerospace Center (DLR), Microwaves and Radar Institute, Muenchner Strasse
More informationA 3D, FORWARD-LOOKING, PHASED ARRAY, OBSTACLE AVOIDANCE SONAR FOR AUTONOMOUS UNDERWATER VEHICLES
A 3D, FORWARD-LOOKING, PHASED ARRAY, OBSTACLE AVOIDANCE SONAR FOR AUTONOMOUS UNDERWATER VEHICLES Matthew J. Zimmerman Vice President of Engineering FarSounder, Inc. 95 Hathaway Center, Providence, RI 02907
More informationMRI & NMR spectrometer
AMOS MRI & NMR spectrometer The AMOS Spectrometer is a highly modular and flexible unit that provides the ability to customize synchronized configurations for preclinical and clinical MR applications.
More informationSurvey Operations Pipeline Inspection
Survey Operations Pipeline Inspection HydroFest 16 th April 20 Kevin Donald Agenda Why Inspect? Definition of a Pipeline Types of Survey Positioning Data Processing The Future Conclusions Page 2 Why Inspect?
More informationMULTIPATH EFFECT ON DPCA MICRONAVIGATION OF A SYNTHETIC APERTURE SONAR
MULTIPATH EFFECT ON DPCA MICRONAVIGATION OF A SYNTHETIC APERTURE SONAR L. WANG, G. DAVIES, A. BELLETTINI AND M. PINTO SACLANT Undersea Research Centre, Viale San Bartolomeo 400, 19138 La Spezia, Italy
More informationExercise 2-1. Beamwidth Measurement EXERCISE OBJECTIVE
Exercise 2-1 Beamwidth Measurement EXERCISE OBJECTIVE When you have completed this exercise, you will be able to evaluate the -3 db beamwidth of the Phased Array Antenna. You will use a reference cylindrical
More informationTunable Wideband & Ultra-Wideband Multi- Antenna Transceivers with Integrated Recording, Playback & Processing
2016 Multi-Antenna Transceiver Systems Tunable Wideband & Ultra-Wideband Multi- Antenna Transceivers with Integrated Recording, Playback & Processing --- For ES, DF, COMS & EA 1 Multi-Antenna Systems D-TA
More informationAcknowledgment. Process of Atmospheric Radiation. Atmospheric Transmittance. Microwaves used by Radar GMAT Principles of Remote Sensing
GMAT 9600 Principles of Remote Sensing Week 4 Radar Background & Surface Interactions Acknowledgment Mike Chang Natural Resources Canada Process of Atmospheric Radiation Dr. Linlin Ge and Prof Bruce Forster
More informationBURIED OBJECT SCANNING SONAR (BOSS)
BURIED OBJECT SCANNING SONAR (BOSS) The BOSS-SAS (Buried Object Scanning Sonar-Synthetic Aperture Sonar) system is a bottom looking sonar used for the detection and imaging of bottom and buried targets.
More informationRadio Receivers. Al Penney VO1NO
Radio Receivers Al Penney VO1NO Role of the Receiver The Antenna must capture the radio wave. The desired frequency must be selected from all the EM waves captured by the antenna. The selected signal is
More informationCompany Profile. Facilities
Company Profile R2Sonic was founded in February 2006 by three veteran underwater acoustical engineers; Jens R. Steenstrup, Mark Chun and Kirk Hobart; with the mission to utilize their experience to bring
More informationThe physics of ultrasound. Dr Graeme Taylor Guy s & St Thomas NHS Trust
The physics of ultrasound Dr Graeme Taylor Guy s & St Thomas NHS Trust Physics & Instrumentation Modern ultrasound equipment is continually evolving This talk will cover the basics What will be covered?
More informationPipeline Inspection and Environmental Monitoring Using AUVs
Pipeline Inspection and Environmental Monitoring Using AUVs Bjørn Jalving, Bjørn Gjelstad, Kongsberg Maritime AUV Workshop, IRIS Biomiljø, 7 8 September 2011 WORLD CLASS through people, technology and
More informationResonance classification of swimbladder-bearing fish using broadband acoustics: 1-6 khz
Resonance classification of swimbladder-bearing fish using broadband acoustics: 1-6 khz Tim Stanton The team: WHOI Dezhang Chu Josh Eaton Brian Guest Cindy Sellers Tim Stanton NOAA/NEFSC Mike Jech Francene
More informationAcoustic Blind Deconvolution in Uncertain Shallow Ocean Environments
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Acoustic Blind Deconvolution in Uncertain Shallow Ocean Environments David R. Dowling Department of Mechanical Engineering
More informationD-TA SYSTEMS INC. Spectrum Processing for Total Dominance
D-TA SYSTEMS INC Spectrum Processing for Total Dominance Mission Statement As threats become more agile, deceptive and diverse, our mandate becomes more focussed on delivering mission critical EW sensor
More informationFundamentals of Arbitrary. Waveform Generation
Fundamentals of Arbitrary Waveform Generation History Applications Key Specifications Optimization Signal fidelity and dynamic range Embedding and de-embedding Waveform generation and automation software
More informationCORE B265LH (Low & High-Frequency)
CHIRP Upgrade Your Sounder to a Serious Fishfinding Machine! Only possible with the use of an AIRMAR broadband transducer. CHIRP TECHNOLOGY 5 to 10 times greater detail and resolution 10 to 1,000 times
More informationUnraveling Zero Crossing and Full Spectrum What does it all mean?
Unraveling Zero Crossing and Full Spectrum What does it all mean? Ian Agranat Wildlife Acoustics, Inc. 2 nd Symposium on Bat Echolocation Research, Tucson AZ March 29, 2017 Let s start with a sound wave
More informationUSBL positioning and communication systems. Applications
USBL positioning and communication systems Offering a powerful USBL transceiver functionality with full benefits of an S2C technology communication link Applications Positioning of offshore equipment >
More informationBasic Radar Definitions Introduction p. 1 Basic relations p. 1 The radar equation p. 4 Transmitter power p. 9 Other forms of radar equation p.
Basic Radar Definitions Basic relations p. 1 The radar equation p. 4 Transmitter power p. 9 Other forms of radar equation p. 11 Decibel representation of the radar equation p. 13 Radar frequencies p. 15
More informationDATASONICS CAP-6600 Chirp II Acoustic Profiling System
DATASONICS CAP-6600 Chirp II Acoustic Profiling System System Manual September 1999 Datasonics, Inc. 1400 Route 28A Cataumet, MA 02534 U.S.A. Tel: (01) 508-563-5511 Fax: (01) 508-563-9312 ii DATASONICS
More informationComprehensive Ultrasound Research Platform
Comprehensive Ultrasound Research Platform Functional Requirements List and Performance Specifications Emma Muir Sam Muir Jacob Sandlund David Smith Advisor: Dr. José Sánchez Date: November 9, 2010 Introduction
More informationCLEARER. DEEPER. BROADER. In-Hull GAME CHANGING TECHNOLOGY.
CHIRP Upgrade Your Sounder to a Serious Fishfinding Machine! Only possible with the use of an AIRMAR broadband transducer. CHIRP TECHNOLOGY 5 to 10 times greater detail and resolution 10 to 1,000 times
More informationUltrasound Physics. History: Ultrasound 2/13/2019. Ultrasound
Ultrasound Physics History: Ultrasound Ultrasound 1942: Dr. Karl Theodore Dussik transmission ultrasound investigation of the brain 1949-51: Holmes and Howry subject submerged in water tank to achieve
More informationActive Sonar Wrap-up Exercise (Everyone should attempt to do the following problems and we will go over them in class.)
Active Sonar Wrap-up Exercise (Everyone should attempt to do the following problems and we will go over them in class.) Name: 1. You are on a new Seawolf class submarine with the sonar system and the environment
More informationApplications of iusbl Technology overview
Applications of iusbl Technology overview Tom Bennetts Project Manager Summary 1. What is iusbl and its target applications 2. Advantages of iusbl and sample data 3. Technical hurdles and Calibration methods
More informationUnderstanding How Frequency, Beam Patterns of Transducers, and Reflection Characteristics of Targets Affect the Performance of Ultrasonic Sensors
Characteristics of Targets Affect the Performance of Ultrasonic Sensors By Donald P. Massa, President and CTO of Massa Products Corporation Overview of How an Ultrasonic Sensor Functions Ultrasonic sensors
More informationSeaCat SwapHead Field-Exchangeable Sensor Technology. Product Description (Part 2 of 3)
SeaCat SwapHead Field-Exchangeable Sensor Technology Product Description (Part 2 of 3) SeaCat SwapHead Introduction SeaCat is the Swiss army knife of underwater survey and inspection operations. It can
More informationTHE NASA/JPL AIRBORNE SYNTHETIC APERTURE RADAR SYSTEM. Yunling Lou, Yunjin Kim, and Jakob van Zyl
THE NASA/JPL AIRBORNE SYNTHETIC APERTURE RADAR SYSTEM Yunling Lou, Yunjin Kim, and Jakob van Zyl Jet Propulsion Laboratory California Institute of Technology 4800 Oak Grove Drive, MS 300-243 Pasadena,
More informationTilted Element Chirp Transducers
TILTED ELEMENT B175HW screenshot courtesy of Humminbird Tilted Element Chirp Transducers As Chirp technology remains at the forefront of echo sounder development, AIRMAR continues to add transducers for
More informationIntroduction to sonar
Introduction to sonar Roy Edgar Hansen Course materiel to INF-GEO4310, University of Oslo, Autumn 2013 (Dated: September 23, 2013) This paper gives a short introduction to underwater sound and the principle
More informationModel 845-M Low Noise Synthesizer
Model 845-M Low Noise Synthesizer Features Low phase noise Fast switching down to 20 µs FM, Chirps, Pulse Internal OCXO, external variable reference Single DC supply Applications ATE LO for frequency converters
More informationSynthesis of acoustic images of underwater targets
FACULDADE DE ENGENHARIA DA UNIVERSIDADE DO PORTO Synthesis of acoustic images of underwater targets Duarte Nuno Reimão Borges Lopes Silva PREPARATION FOR THE MSC DISSERTATION Master in Electrical and Computers
More informationGeneric Bathymetry Data - Interface Control Document
Generic Bathymetry Data - Interface Control Document For WASSP Prepared by: Keith Fletcher Electronic Navigation Ltd October 15, 2013 Version 2.2 2013 by WASSP Ltd No part of this document should be reproduced
More informationApplication Note: Sidescan Sonar Beamwidth.
Application Note: Sidescan Sonar Beamwidth. The Beamwidth of a sidescanning sonar is often defined or stated in terms of a beam angle. However the beam shape of a sidescanning sonar is not, a) a simple
More informationAppendix E-4 BIWF Marine Geophysical Landfall Survey
Appendix E-4 BIWF Marine Geophysical Landfall Survey 25 July 2012 AECOM 10 Orms Street, Suite 405 Providence, RI 02904 Attn: Mark Gardella SUBJECT: MARINE GEOPHYSICAL SITE INVESTIGATIONS (REPORT NO. 12ES048-WF)
More information08/10/2013. Marine Positioning Systems Surface and Underwater Positioning. egm502 seafloor mapping
egm502 seafloor mapping lecture 8 navigation and positioning Marine Positioning Systems Surface and Underwater Positioning All observations at sea need to be related to a geographical position. To precisely
More informationON WAVEFORM SELECTION IN A TIME VARYING SONAR ENVIRONMENT
ON WAVEFORM SELECTION IN A TIME VARYING SONAR ENVIRONMENT Ashley I. Larsson 1* and Chris Gillard 1 (1) Maritime Operations Division, Defence Science and Technology Organisation, Edinburgh, Australia Abstract
More information