08/10/2013. Marine Positioning Systems Surface and Underwater Positioning. egm502 seafloor mapping
|
|
- Mitchell O’Neal’
- 5 years ago
- Views:
Transcription
1 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 locate the position of features imaged on the seabed, we need to know (a) where the survey vessel is located (on the sea-surface), (b) where the sonar platform is located (below the sea-surface) and (c) which area of the seafloor is insonified. This precise positional data is given by a combination of position fixing (latitude, longitude and altitude above a reference datum), heading, speed and attitude (heave, roll, pitch, yaw) information. The remainder of this lecture will detail the techniques used for measuring the position of the survey vessel at the sea-surface, the position of the sonar platform (if not attached to the vessel) and their relative variations in attitude. (a) Surface (Ship) Positioning Since the GPS revolution in the early 1990s, ship positioning techniques have changed in ease and accuracy. Majority of offshore navigation systems superseded by the GPS system commercially released in 1993 (see MAR101 lecture notes for details). Global Positioning System comprises a constellation of 24 satellites in synchronous orbits, associated ground stations and user equipment. 1
2 The resolution of GPS can be enhanced with Differential GPS (DGPS). In DGPS, a high-precision GPS reference station receiver is surveyed-in with centimetric accuracy and its position is programmed to memory. satellite constellation The reference station calculates its position using the same satellites as the ship. As the reference station knows its exact position (pre-programmed), it can identify errors in the satellite signal time measurement, compute a correction and transmit the correction to the roving receiver (survey vessel). Corrections update regularly (typically every second) and broadcast to the survey vessel. This technique works because the satellite signal time distortion is almost identical for any 2 points on the Earth which are less than 500km apart. error corrections reference station (fixed receiver, known position) remote station (roving receiver) Differential corrections can be obtained from several sources: (a) your own base station, (b) the worldwide network of DGPS radio-beacons, or (c) a satellite differential service provider. The network of DGPS radio-beacons throughout the world is rapidly expanding and the signals that most radio-beacons transmit are free. There are also a number of satellite differential service provider options including subscription services you pay for, and now the Wide Area Augmentation System (WAAS) or EGNOS satellite systems for the US and Europe respectively that will improve integrity, accuracy and availability of GPS for users. For very high precision surveys, sub-metre DGPS accuracy is not enough. That's where centimetre-level solutions using Real-Time Kinematic (RTK) can provide even greater accuracy. 2
3 (b) Sub-surface (Towfish) Positioning In many applications, the sonar platform (towfish) is towed by the ship, sometimes only a few metres above the seafloor. The towfish may be positioned two ways: (i) by manually calculating how far it lies behind and below the ship, or (ii) by using acoustic techniques. Klein Associates Inc., 2005 (i) Manual Positioning The Towfish Layback is the distance the towfish is being towed behind the vessel. It is important to remember that the sonar image data is not being generated at the tow vessel but at the towfish. Also remember that the GPS fix being generated is where the GPS antenna is located on the tow vessel not where the towfish is. The lay back correction can be calculated fairly accurately by using the Pythagorean theorem. The information you need is as follows: (1) The amount of cable that has been deployed (the hypotenuse). (2) Establishing the depth of the towfish (one leg of the right triangle). This can be obtained by subtracting the height of the towfish off the bottom (a measurement made on the sonar record) from the total depth of the water (ships depth sounder). Layback = Cable Deployed 2 Towfish Depth 2 (ii) Acoustic Positioning Acoustic positioning systems are base don two types of configuration: short baseline (SBL) and long baseline (LBL): LBL (Long BaseLine) An LBL system has two parts or segments: The first segment comprises a number of acoustic Transponder Beacons moored in fixed locations on the seabed. The positions of the Beacons are described in a co-ordinate frame fixed to the seabed. The distances between them form the "baselines" used by the system. The second segment comprises an acoustic transducer on a Transceiver which is normally temporarily installed on the vessel - or on a Tow Fish. USBL (Ultra Short BaseLine) USBL principles are very similar to SBL principles (in which an array of acoustic transducers is deployed on the surface vessel) except that the transducers are all built into a single transceiver assembly - or the array of transducers is replaced by an array of transducer elements in a single transceiver assembly. The distances or ranges are measured as they are in an SBL system but the time differences are now much less. Systems using sinusoidal signals measure the "time-phase" of the signal in each element with respect to a reference in the receiver. The "time-phase differences" between transducer elements are computed by subtraction and then the system is equivalent to an SBL system. 3
4 Ormen Lange field located in the Norwegian Sea, 100 km north-west of the coast of Mid-Norway. Historic wrecks in 170m water depth. Søreide and Jasinski, in press Søreide and Jasinski, in press Case Study Fredrik Søreide and Marek E. Jasinski - Ormen Lange DeepWater Shipwreck Excavation (IJNA, in press) 4
5 (c) Attitude Information The final issue of which portion of the seafloor is being insonified is addressed by measuring the attitude of the ship or sonar platform. J.E. Hughes Clarke, OMG/UNB Søreide and Jasinski, in press Four types of movement are recognised: heave, roll, pitch and yaw. EXAMPLE SYSTEM Inertial Measurement Unit (IMU) or Motion Referencing Unit (MRU) An Inertial Measurement Unit is a closed system that is used to detect altitude, location, and motion. Typically installed on survey vessels, it normally uses a combination of accelerometers and angular rate sensors (gyroscopes) to track how the vessel is moving. Typically, an IMU detects the current acceleration and rate of change in attitude (i.e. pitch, roll and yaw rates) and then sums them to find the total change from the initial position. These corrections are then applied to the geophysical data to correct for the effects of pitch, roll and yaw. An IMU stands in contrast to the GPS system, which uses external satellites to detect the current position. 5
6 WITHOUT COMPENSATION WITH COMPENSATION 6
Hydroacoustic Aided Inertial Navigation System - HAIN A New Reference for DP
Return to Session Directory Return to Session Directory Doug Phillips Failure is an Option DYNAMIC POSITIONING CONFERENCE October 9-10, 2007 Sensors Hydroacoustic Aided Inertial Navigation System - HAIN
More informationSubsea Positioning In deep water
Subsea Positioning In deep water PETRONAS - PETRAD - INTSOK CCOP DEEPWATER SUBSEA TIE-BACK Damai Puri Resort & Spa, Kuching, Sarawak, MALAYSIA 24TH - 26TH January, 2011 Supplier to the oil & gas industry
More informationINS for life of field
INS for life of field Mark Carter Business Development Manager : Inertial Oceanology 2012 Positioning Requirements Drilling Construction Pipe Lay IRM Decommissioning Rig DP (Dual Redundant) Site Survey
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 informationDP MAINTENANCE INTRODUC INTR TION T TION O SENS T OR O SENS S OR
DP MAINTENANCE INTRODUCTION TO SENSORS Sensors Wind Sensors PMEs Workstations Gyrocompasses Network Switchbox Network Switchbox Controller Cabinets Dual Ethernet Motion Sensors (VRU) Field Stations Thrusters
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 informationPHINS, An All-In-One Sensor for DP Applications
DYNAMIC POSITIONING CONFERENCE September 28-30, 2004 Sensors PHINS, An All-In-One Sensor for DP Applications Yves PATUREL IXSea (Marly le Roi, France) ABSTRACT DP positioning sensors are mainly GPS receivers
More informationAcoustic INS aiding NASNet & PHINS
NAUTRONIX MARINE TECHNOLOGY SOLUTIONS Acoustic INS aiding NASNet & PHINS Sam Hanton Aberdeen Houston Rio Positioning Options Satellites GPS, GLONASS, COMPASS Acoustics LBL, SBL, USBL Relative sensors Laser
More informationNASNet DPR: NASNet as a Deepwater Acoustic DP Position Reference
NAUTRONIX MARINE TECHNOLOGY SOLUTIONS NASNet DPR: NASNet as a Deepwater Acoustic DP Position Reference Aberdeen Houston Rio Overview Offshore positioning introduction Considerations of acoustic positioning
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 informationglobal acoustic positioning system GAPS usbl acoustic with integrated INS positioning system Ixsea Oceano GAPS page 1
global acoustic positioning system usbl acoustic positioning system with integrated INS positioning system page 1 THE MERGER OF INERTIAL AND UNDERWATER ACOUSTIC TECHNOLOGIES is a unique Global Acoustic
More informationConstruction Survey Positioning Systems Wideband Fusion LBL and USBL
cc Construction Survey Positioning Systems Wideband Fusion LBL and USBL Contents Introduction 01 Fusion USBL 02 Fusion USBL System Specifications 05 Fusion LBL 06 Fusion LBL System Specifications 09 Precise,
More informationInertial Systems. Ekinox Series TACTICAL GRADE MEMS. Motion Sensing & Navigation IMU AHRS MRU INS VG
Ekinox Series TACTICAL GRADE MEMS Inertial Systems IMU AHRS MRU INS VG ITAR Free 0.05 RMS Motion Sensing & Navigation AEROSPACE GROUND MARINE EKINOX SERIES R&D specialists usually compromise between high
More informationMARKSMAN DP-INS DYNAMIC POSITIONING INERTIAL REFERENCE SYSTEM
cc MARKSMAN DP-INS DYNAMIC POSITIONING INERTIAL REFERENCE SYSTEM Sonardyne s Marksman DP-INS is an advanced navigation-based Position Measuring Equipment (PME) source for dynamically positioned (DP) rigs.
More informationInertial Navigation System
Apogee Marine Series ULTIMATE ACCURACY MEMS Inertial Navigation System INS MRU AHRS ITAR Free 0.005 RMS Navigation, Motion & Heave Sensing APOGEE SERIES makes high accuracy affordable for all surveying
More informationCODEVINTEC. Miniature and accurate IMU, AHRS, INS/GNSS Attitude and Heading Reference Systems
45 27 39.384 N 9 07 30.145 E Miniature and accurate IMU, AHRS, INS/GNSS Attitude and Heading Reference Systems Aerospace Land/Automotive Marine Subsea Miniature inertial sensors 0.1 Ellipse Series New
More informationSubsea positioning through the ages
Subsea positioning through the ages Jonathan Martin Navigation Systems Engineer Sonardyne International What is sound and how can we make use of it in navigation? Applied Voltage Induced Voltage The dawn
More informationInertial Navigation System
Apogee Series ULTIMATE ACCURACY MEMS Inertial Navigation System INS MRU AHRS ITAR Free 0.005 RMS Motion Sensing & Georeferencing APOGEE SERIES makes high accuracy affordable for all surveying companies.
More informationKongsberg Seatex AS Pirsenteret N-7462 Trondheim Norway POSITION 303 VELOCITY 900 HEADING 910 ATTITUDE 413 HEAVE 888
WinFrog Device Group: Device Name/Model: Device Manufacturer: Device Data String(s) Output to WinFrog: WinFrog Data String(s) Output to Device: WinFrog Data Item(s) and their RAW record: GPS SEAPATH Kongsberg
More informationFieldGenius Technical Notes GPS Terminology
FieldGenius Technical Notes GPS Terminology Almanac A set of Keplerian orbital parameters which allow the satellite positions to be predicted into the future. Ambiguity An integer value of the number of
More informationApplanix Products and Solutions for Hydrographic Survey & Marine Applications Maximize Your Productivity!
Applanix Products and Solutions for Hydrographic Survey & Marine Applications Maximize Your Productivity! Applanix technology and support gives you the advantage: lower costs of deployment, faster times
More informationWORLD CLASS through people, technology and dedication WORLD CLASS through people, technology and dedication
WORLD CLASS through people, technology and dedication WORLD CLASS through people, technology and dedication 1 2 Acoustic Positioning Systems Hydrofest Aberdeen University Wednesday 31 st March Ian Florence
More informationGPS and Recent Alternatives for Localisation. Dr. Thierry Peynot Australian Centre for Field Robotics The University of Sydney
GPS and Recent Alternatives for Localisation Dr. Thierry Peynot Australian Centre for Field Robotics The University of Sydney Global Positioning System (GPS) All-weather and continuous signal system designed
More informationUSBL positioning and communication SyStEmS. product information GUidE
USBL positioning and communication SyStEmS product information GUidE evologics s2c R usbl - series underwater positioning and communication systems EvoLogics S2CR USBL is a series of combined positioning
More informationRanger USBL Acoustic Positioning System for DP Reference and Survey
Acoustic Positioning System for DP Reference and Survey cc 545000m N 544990m 544980m 544970m 6027910m 6027900m W 6027890m 6027880m S Contents Introduction 01 Ranger USBL System Overview 02 Ranger USBL
More informationUNITED NATIONS UNIVERSITY Institute for Environment & Human Security (UNU-EHS) Bonn, Germany
UNITED NATIONS UNIVERSITY Institute for Environment & Human Security (UNU-EHS) Bonn, Germany Introduction to GPS technology Prof. Dr. Jörg Szarzynski Education Programme Director Head of Section EduSphere
More informationWORLD CLASS through people, technology and dedication
WORLD CLASS through people, technology and dedication WORLD CLASS through people, technology and dedication 1 2 Acoustic Positioning Systems Hydrofest Robert Gordon University Scott Sutherland Building
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 informationCENG 5931 HW 5 Mobile Robotics Due March 5. Sensors for Mobile Robots
CENG 5931 HW 5 Mobile Robotics Due March 5 Sensors for Mobile Robots Dr. T. L. Harman: 281 283-3774 Office D104 For reports: Read HomeworkEssayRequirements on the web site and follow instructions which
More informationExperiences with Fugro's Real Time GPS/GLONASS Orbit/Clock Decimeter Level Precise Positioning System
Return to Session Directory DYNAMIC POSITIONING CONFERENCE October 13-14, 2009 Sensors Experiences with Fugro's Real Time GPS/GLONASS Orbit/Clock Decimeter Level Precise Positioning System Ole Ørpen and
More informationMETIS Second Master Training & Seminar. Augmentation Systems Available in Egypt
METIS Second Master Training & Seminar Augmentation Systems Available in Egypt By Eng. Ramadan Salem M. Sc. Surveying and Geodesy Email: ramadan_salem@link.net Page 1 Augmentation Systems Available in
More informationGPS: The Basics. Darrell R. Dean, Jr. Civil and Environmental Engineering West Virginia University. Expected Learning Outcomes for GPS
GPS: The Basics Darrell R. Dean, Jr. Civil and Environmental Engineering West Virginia University Expected Learning Outcomes for GPS Explain the acronym GPS Name 3 important tdt dates in history of GPS
More informationMotion Reference Units
Motion Reference Units MRU Datasheet Rev. 1.3 IP-67 sealed 5% / 5 cm Heave accuracy 0.03 m/sec Velocity accuracy 0.05 deg Pitch and Roll accuracy 0.005 m/sec2 Acceleration accuracy 0.0002 deg/sec Angular
More information1 Introduction integrated 3D sonar system for underwater inspection applications
1 Introduction The Underwater Inspection System (UIS TM ) is an integrated 3D sonar system for underwater inspection applications, specifically port and harbor construction, maintenance, port expansion,
More informationThe Global Positioning System
The Global Positioning System 5-1 US GPS Facts of Note DoD navigation system First launch on 22 Feb 1978, fully operational in 1994 ~$15 billion (?) invested to date 24 (+/-) Earth-orbiting satellites
More informationAN AIDED NAVIGATION POST PROCESSING FILTER FOR DETAILED SEABED MAPPING UUVS
MODELING, IDENTIFICATION AND CONTROL, 1999, VOL. 20, NO. 3, 165-175 doi: 10.4173/mic.1999.3.2 AN AIDED NAVIGATION POST PROCESSING FILTER FOR DETAILED SEABED MAPPING UUVS Kenneth Gade and Bjørn Jalving
More informationNavigation Sensor Technology Aids Marine Seismic Survey
Page 1 of 5 Navigation Sensor Technology Aids Marine Seismic Survey Al Hise, NCS SubSea; John Thorson, Sparton Navigation and Exploration; Craig Lippus, Geometrics April 1, 2012 A new digital compass provides
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 informationGPS Milestones, cont. GPS Milestones. The Global Positioning Sytem, Part 1 10/10/2017. M. Helper, GEO 327G/386G, UT Austin 1. US GPS Facts of Note
The Global Positioning System US GPS Facts of Note DoD navigation system First launch on 22 Feb 1978, fully operational in 1994 ~$15 billion (?) invested to date 24 (+/-) Earth-orbiting satellites (SVs)
More informationLine and polygon features can be created via on-screen digitizing.
This module explains how GPS works, sources of error, and error correction using real time or post processing differential correction. Cost and accuracy of different grades of GPS units are also part of
More informationLBL POSITIONING AND COMMUNICATION SYSTEMS PRODUCT INFORMATION GUIDE
LBL POSITIONING AND COMMUNICATION SYSTEMS PRODUCT INFORMATION GUIDE EvoLogics S2C LBL Underwater Positioning and Communication Systems EvoLogics LBL systems bring the benefi ts of long baseline (LBL) acoustic
More informationModule 2: Lecture 4 Flight Control System
26 Guidance of Missiles/NPTEL/2012/D.Ghose Module 2: Lecture 4 Flight Control System eywords. Roll, Pitch, Yaw, Lateral Autopilot, Roll Autopilot, Gain Scheduling 3.2 Flight Control System The flight control
More informationTightly Integrated Second Generation Acoustic-Inertial Position Reference Systems
Return to Session Menu DYNAMIC POSITIONING CONFERENCE October 15-16, 2013 SENSORS SESSION II Tightly Integrated Second Generation Acoustic-Inertial Position Reference Systems Mark Carter Sonardyne International
More informationGPS Accuracies in the Field
GPS Accuracies in the Field A short and informative talk by A. Richard Vannozzi, PLS Assistant Professor of Civil Technology/Surveying and Mapping Thompson School of Applied Science University of New Hampshire
More informationGlobal Positioning Systems (GPS) Trails: the achilles heel of mapping from the air / satellites
Global Positioning Systems (GPS) Trails: the achilles heel of mapping from the air / satellites Google maps updated regularly by local users using GPS Also: http://openstreetmaps.org GPS applications
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 informationInertial Sensors. Ellipse 2 Series MINIATURE HIGH PERFORMANCE. Navigation, Motion & Heave Sensing IMU AHRS MRU INS VG
Ellipse 2 Series MINIATURE HIGH PERFORMANCE Inertial Sensors IMU AHRS MRU INS VG ITAR Free 0.1 RMS Navigation, Motion & Heave Sensing ELLIPSE SERIES sets up new standard for miniature and cost-effective
More informationDEVICE CONFIGURATION INSTRUCTIONS
WinFrog Device Group: Device Name/Model: Device Manufacturer: Device Data String(s) Output to WinFrog: WinFrog Data String(s) Output to Device: WinFrog Data Item(s) and their RAW record: GPS POS/MV (NMEA)
More informationInertial Sensors. Ellipse 2 Series MINIATURE HIGH PERFORMANCE. Navigation, Motion & Heave Sensing IMU AHRS MRU INS VG
Ellipse 2 Series MINIATURE HIGH PERFORMANCE Inertial Sensors IMU AHRS MRU INS VG ITAR Free 0.1 RMS Navigation, Motion & Heave Sensing ELLIPSE SERIES sets up new standard for miniature and cost-effective
More informationDynamically Positioned and Thruster Assisted Position Moored Vessels
Dynamically Positioned and Thruster Assisted Position Moored Vessels Professor Asgeir J. Sørensen, Department of Marine Technology, Norwegian University of Science and Technology, Otto Nielsens Vei 10,
More informationUnderwater Acoustic Communication and Positioning State of the Art and New Uses
Underwater Acoustic Communication and Positioning State of the Art and New Uses Radio signals Work only on very short distances Salty water particularly problematic No underwater GPS Cables Too heavy,
More informationSperry Marine Northrop Grumman
Sperry Marine 2005 Northrop Grumman Table of Contents CHAPTER 1: CHAPTER 2: CHAPTER 3: CHAPTER 4: CHAPTER 5: CHAPTER 6: WHERE ARE YOU GOING? TRANSMITTING HEADING DEVICES DETERMINING HEADING BY SATELLITE
More informationRESOLUTION MSC.112(73) (adopted on 1 December 2000) ADOPTION OF THE REVISED PERFORMANCE STANDARDS FOR SHIPBORNE GLOBAL POSITIONING SYSTEM (GPS)
MSC 73/21/Add.3 RESOLUTION MSC.112(73) FOR SHIPBORNE GLOBAL POSITIONING SYSTEM THE MARITIME SAFETY COMMITTEE, RECALLING Article (28(b) of the Convention on the International Maritime Organization concerning
More informationInertial Sensors. Ellipse Series MINIATURE HIGH PERFORMANCE. Navigation, Motion & Heave Sensing IMU AHRS MRU INS VG
Ellipse Series MINIATURE HIGH PERFORMANCE Inertial Sensors IMU AHRS MRU INS VG ITAR Free 0.1 RMS Navigation, Motion & Heave Sensing ELLIPSE SERIES sets up new standard for miniature and cost-effective
More informationIntroduction to Geographic Information Science. Last Lecture. Today s Outline. Geography 4103 / GNSS/GPS Technology
Geography 4103 / 5103 Introduction to Geographic Information Science GNSS/GPS Technology Last Lecture Geoids Ellipsoid Datum Projection Basics Today s Outline GNSS technology How satellite based navigation
More informationEIS - Electronics Instrumentation Systems for Marine Applications
Coordinating unit: Teaching unit: Academic year: Degree: ECTS credits: 2015 230 - ETSETB - Barcelona School of Telecommunications Engineering 710 - EEL - Department of Electronic Engineering MASTER'S DEGREE
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 informationThe topic we are going to see in this unit, the global positioning system, is not directly related with the computer networks we use everyday, but it
The topic we are going to see in this unit, the global positioning system, is not directly related with the computer networks we use everyday, but it is indeed a kind of computer network, as the specialised
More informationAN AUSTRALIAN PILOT PROJECT FOR A REAL TIME KINEMATIC GPS NETWORK USING THE VIRTUAL REFERENCE STATION CONCEPT
AN AUSTRALIAN PILOT PROJECT FOR A REAL TIME KINEMATIC GPS NETWORK USING THE VIRTUAL REFERENCE STATION CONCEPT Matthew B HIGGINS, Australia Key words: GPS, Surveying, Real Time Kinematic, Virtual Reference
More informationMINE SEARCH MISSION PLANNING FOR HIGH DEFINITION SONAR SYSTEM - SELECTION OF SPACE IMAGING EQUIPMENT FOR A SMALL AUV DOROTA ŁUKASZEWICZ, LECH ROWIŃSKI
MINE SEARCH MISSION PLANNING FOR HIGH DEFINITION SONAR SYSTEM - SELECTION OF SPACE IMAGING EQUIPMENT FOR A SMALL AUV DOROTA ŁUKASZEWICZ, LECH ROWIŃSKI Gdansk University of Technology Faculty of Ocean Engineering
More informationNR402 GIS Applications in Natural Resources
NR402 GIS Applications in Natural Resources Lesson 5 GPS/GIS integration Global Positioning System (GPS)..a global navigation system that everyone can use What is GPS? How does it work? How accurate is
More informationNew developments in offshore precise GNSS positioning
New developments in offshore precise GNSS positioning Kees de Jong Fugro Intersite B.V. November 2013 Contents Profile Mission is to be the world s leading service-provider in the collection and interpretation
More informationReceiver Technology CRESCENT OEM WHITE PAPER AMY DEWIS JENNIFER COLPITTS
CRESCENT OEM WHITE PAPER AMY DEWIS JENNIFER COLPITTS With offices in Kansas City, Hiawatha, Calgary and Scottsdale, Hemisphere GPS is a global leader in designing and manufacturing innovative, costeffective,
More informationAutonomous Underwater Vehicle Navigation.
Autonomous Underwater Vehicle Navigation. We are aware that electromagnetic energy cannot propagate appreciable distances in the ocean except at very low frequencies. As a result, GPS-based and other such
More informationPOSITION & ORIENTATION SYSTEMS FOR MARINE VESSELS
POSITION & ORIENTATION SYSTEMS FOR MARINE VESSELS Applanix POS MV is the marine-survey industry s most accurate, robust, and reliable position and orientation solution available today. Representing the
More informationPRINCIPLES AND FUNCTIONING OF GPS/ DGPS /ETS ER A. K. ATABUDHI, ORSAC
PRINCIPLES AND FUNCTIONING OF GPS/ DGPS /ETS ER A. K. ATABUDHI, ORSAC GPS GPS, which stands for Global Positioning System, is the only system today able to show you your exact position on the Earth anytime,
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 informationDeep. Navigating the. High Accuracy Positioning Support for Deep Water Construction. Copyright Journal of Ocean Technology 2017
Navigating the Deep High Accuracy Positioning Support for Deep Water Construction by Will Primavesi, Tamir Frydenrych, and Drew Nicholson ISTOCKPHOTO.COM/CHERT61 The Journal of Ocean Technology, Vol. 12,
More informationPositioning Small AUVs for Deeper Water Surveys Using Inverted USBL
Positioning Small AUVs for Deeper Water Surveys Using Inverted USBL Presented at Hydro12, Rotterdam, November 2012 Dr. T.M. Hiller, thiller@teledyne.com Overview Introduction to Gavia AUV Gavia Acoustic
More informationHigh Precision Acoustic Positioning HiPAP
High Precision Acoustic Positioning HiPAP www.kongsberg.com The HiPAP Family: HiPAP 501 HiPAP 451 HiPAP 351 HiPAP 351P series HiPAP 101 Maximizing performance by providing The Full Picture Our mission
More informationMarine Construction Support & Dimensional Control
Page 1 of 5 Marine Construction Support & Dimensional Control Key Specifications Surface and Subsurface Positioning IRM Support Lay Support Trench Suport Installation Support Metrology As-Built Heavy Lift
More informationPOS MV Position and Attitude sensors. Applications. > > High reliability in all dynamic conditions. > > Immunity to GNSS outages
45 27 39.384 N 9 07 30.145 E POS MV Position and Attitude sensors Applanix technology and support gives you the advantage: lower costs of deployment, faster times to completion, and improved quality of
More informationOne Source for Positioning Success
novatel.com One Source for Positioning Success RTK, PPP, SBAS OR DGNSS. NOVATEL CORRECT OPTIMIZES ALL CORRECTION SOURCES, PUTTING MORE POWER, FLEXIBILITY AND CONTROL IN YOUR HANDS. NovAtel CORRECT is the
More informationSYSTEM 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 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 informationPOS MV Position and Attitude sensors. Applications. > > High reliability in all dynamic conditions. > > Immunity to GNSS outages
45 27 39.384 N 9 07 30.145 E POS MV Position and Attitude sensors Applanix technology and support gives you the advantage: lower costs of deployment, faster times to completion, and improved quality of
More informationCombined USBL and Inertial Navigation
SENSORS Combined USBL and Inertial Navigation Mikael Bliksted Larsen Sonardyne International October 13-14, 2009 Return to Session Directory Combined USBL and Inertial Navigation - an alternative and improved
More informationANNEX 12. RESOLUTION MSC.74(69) (adopted on 12 May 1998) ADOPTION OF NEW AND AMENDED PERFORMANCE STANDARDS
RESOLUTION MSC.74(69) (adopted on 12 May 1998) ADOPTION OF NEW AND AMENDED PERFORMANCE STANDARDS THE MARITIME SAFETY COMMITTEE, RECALLING Article 28(b) of the Convention on the International Maritime Organization
More informationGNSS & Coordinate Systems
GNSS & Coordinate Systems Matthew McAdam, Marcelo Santos University of New Brunswick, Department of Geodesy and Geomatics Engineering, Fredericton, NB May 29, 2012 Santos, 2004 msantos@unb.ca 1 GNSS GNSS
More informationInertial Systems. Ekinox 2 Series TACTICAL GRADE MEMS. Motion Sensing & Navigation IMU AHRS MRU INS VG
Ekinox 2 Series TACTICAL GRADE MEMS Inertial Systems IMU AHRS MRU INS VG ITAR Free 0.02 RMS Motion Sensing & Navigation AEROSPACE GROUND MARINE EKINOX 2 SERIES R&D specialists usually compromise between
More informationInertial Systems. Ekinox 2 Series TACTICAL GRADE MEMS. Motion Sensing & Navigation IMU AHRS MRU INS VG
Ekinox 2 Series TACTICAL GRADE MEMS Inertial Systems IMU AHRS MRU INS VG ITAR Free 0.02 RMS Motion Sensing & Navigation AEROSPACE GROUND MARINE EKINOX 2 SERIES R&D specialists usually compromise between
More informationWhat is a GPS How does GPS work? GPS Segments GPS P osition Position Position Accuracy Accuracy Accuracy GPS A pplications Applications Applications
What is GPS? What is a GPS How does GPS work? GPS Segments GPS Position Accuracy GPS Applications What is GPS? The Global Positioning System (GPS) is a precise worldwide radio-navigation system, and consists
More informationAuthor s Name Name of the Paper Session. PDynamic. Positioning Committee. Marine Technology Society
Author s Name Name of the Paper Session PDynamic Positioning Committee Marine Technology Society DYNAMIC POSITIONING CONFERENCE September 17-18, 2002 Acoustic Positioning Flexible Acoustic Positioning
More informationInertial Sensors. Ellipse Series MINIATURE HIGH PERFORMANCE. Navigation, Motion & Heave Sensing IMU AHRS MRU INS VG
Ellipse Series MINIATURE HIGH PERFORMANCE Inertial Sensors IMU AHRS MRU INS VG ITAR Free 0.2 RMS Navigation, Motion & Heave Sensing ELLIPSE SERIES sets up new standard for miniature and cost-effective
More informationGPS-Aided INS Datasheet Rev. 3.0
1 GPS-Aided INS The Inertial Labs Single and Dual Antenna GPS-Aided Inertial Navigation System INS is new generation of fully-integrated, combined GPS, GLONASS, GALILEO, QZSS, BEIDOU and L-Band navigation
More informationORBITAL NAVIGATION SYSTEMS PRESENT AND FUTURE TENDS
ORBITAL NAVIGATION SYSTEMS PRESENT AND FUTURE TENDS CONTENT WHAT IS COVERED A BRIEF HISTORY OF SYSTEMS PRESENT SYSTEMS IN USE PROBLEMS WITH SATELLITE SYSTEMS PLANNED IMPROVEMENTS CONCLUSION CONTENT WHAT
More informationGPS Errors. Figure 1. Four satellites are required to determine a GPS position.
Expl ai ni nggps:thegl obalposi t i oni ngsyst em since a minimum of four satellites is required to calculate a position (Fig 1). However, many newer GPS receivers are equipped to receive up to 12 satellite
More informationPrimer on GPS Operations
MP Rugged Wireless Modem Primer on GPS Operations 2130313 Rev 1.0 Cover illustration by Emma Jantz-Lee (age 11). An Introduction to GPS This primer is intended to provide the foundation for understanding
More informationGNSS 101 Bringing It Down To Earth
GNSS 101 Bringing It Down To Earth Steve Richter Frontier Precision, Inc. UTM County Coordinates NGVD 29 State Plane Datums Scale Factors Projections Session Agenda GNSS History & Basic Theory Coordinate
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 informationhydro8 Precise Point Positioning, the new DGPS: The C-Nav Experience Edwin Danson FRICS FInstCES FRAS Business strategy consultant
hydro8 Precise Point Positioning, the new DGPS: The C-Nav Experience Edwin Danson FRICS FInstCES FRAS Business strategy consultant C-Nav Worldwide Precise Point Positioning with In-built Autonomy for Assurance
More informationBASELINE SURVEY, VISUAL - STANDARD
BASELINE SURVEY, VISUAL - STANDARD Introduction As stated in SEPA s policy and in the Fish Farm Manual (1998), scientific data are required by SEPA in order to assess the existing condition on the site
More informationRemote Sensing of Deepwater Shipwrecks
Abigail Casavant December 16, 2014 Final Project NRS 509 Remote Sensing of Deepwater Shipwrecks Underwater archaeology is still a relatively new field in terms of age and technological advances. With the
More informationAuthor s Name Name of the Paper Session. DYNAMIC POSITIONING CONFERENCE October 10-11, 2017 SENSORS SESSION. Sensing Autonomy.
Author s Name Name of the Paper Session DYNAMIC POSITIONING CONFERENCE October 10-11, 2017 SENSORS SESSION Sensing Autonomy By Arne Rinnan Kongsberg Seatex AS Abstract A certain level of autonomy is already
More informationPerformance Evaluation of Differential Global Navigation Satellite System with RTK Corrections
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 2, Ver. VI (Mar - Apr. 2014), PP 43-47 Performance Evaluation of Differential
More informationSeapath 320. User Manual
Seapath 320 User Manual Seapath 320 About this document Rev Date Written by Checked by Approved by Rev. 1 2010-02-22 FOS FOS First issue of this manual Rev. 2 2010-06-25 FOS FOS Description of serial port
More informationGEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11
GEO 428: DEMs from GPS, Imagery, & Lidar Tuesday, September 11 Global Positioning Systems GPS is a technology that provides Location coordinates Elevation For any location with a decent view of the sky
More informationRECOMMENDATION ITU-R M *
Rec. ITU-R M.823-3 1 RECOMMENDATION ITU-R M.823-3 * Technical characteristics of differential transmissions for global navigation satellite systems from maritime radio beacons in the frequency band 283.5-315
More informationGPS-Aided INS Datasheet Rev. 2.6
GPS-Aided INS 1 GPS-Aided INS The Inertial Labs Single and Dual Antenna GPS-Aided Inertial Navigation System INS is new generation of fully-integrated, combined GPS, GLONASS, GALILEO and BEIDOU navigation
More informationDeep Sea Salvage Operations
Deep Sea Salvage Operations Dr. Alok K. Verma & Ameya Erande Lean Institute - ODU 1 Deep Sea Salvage - Description of Module Shipwrecks are salvaged world wide for accident investigation, antique exploration
More information