Edgetech Discover Bathymetric Owner's manual

Brand: Edgetech

Model: Discover Bathymetric

Type: Owner's manual

EdgeTech

4 Little Brook Road

West Wareham, MA 02576

Tel: (508) 291-0057

Fax: (508) 291-2491

www.EdgeTech.com

DISCOVER BATHYMETRIC

USER SOFTWARE MANUAL

0014878_REV_H 11/9/2022

Discover Bathymetric 0014878_REV_H

The information, figures, and specifications in this manual are proprietary and are issued in strict confidence on

the condition that they not be copied, reprinted, or disclosed to a third party, either wholly or in part, without

the prior written consent of EdgeTech. Any reproduction of EdgeTech-supplied software or file sharing is strictly

prohibited.

Microsoft® and Windows® are registered trademarks of Microsoft Corporation.

HYPACK® and HYSWEEP® are registered trademarks of Hypack, Inc.

SonarWiz® is a registered trademark of Chesapeake Technologies Inc.

CARIS® is a registered trademark of Teledyne Caris.

EIVA NaviSuite® is a registered trademark of Eiva.

QINSY® is a registered trademark of QPS.

Applanix POSMV® is a registered trademark of Applanix.

Ekinox® and Apogee® are registered trademarks of SBG Corporation.

BEAMWORX® is a registered trademark of BeamworX B.V

iii

ABOUT THIS DOCUMENT

We, the employees at EdgeTech, would like to thank you for purchasing Discover Bathymetric Software. At

EdgeTech, our policy is to provide high-quality, cost-effective products and support services that meet or exceed

your requirements. We also strive to deliver them on time and continuously look for ways to improve them. We

take pride in the products we manufacture and want you to be entirely satisfied with your equipment.

Purpose of this Manual

The purpose of this manual is to provide the user with information on the setup and use of EdgeTech’s

Bathymetric Software. This manual encompasses the latest operational features of the product but may be

periodically upgraded. Therefore, the information in this manual is subject to change and should be used for

reference only.

License Statement

The Discover Bathymetric manual is not covered by any license. It is being provided to you to facilitate using the

Discover Bathymetric Software. This document is the property of EdgeTech and is being provided with limited

rights to its use.

Liability

This content is protected under copyright law, furnished for informational use only, is subject to change without

notice, and should not be construed as a commitment by EdgeTech. EdgeTech assumes no responsibility or

liability for any errors or inaccuracies that may appear in this manual.

Distribution

EdgeTech does not grant the right to give away, sell, license, re-package, or otherwise distribute any portion of

this document without the written permission of EdgeTech, Inc.

Revision History

REV

DESCRIPTION

DATE

APPROVAL

A Release to production 05/2014 HS

Added Calibration Procedure

08/2014

Updated software to include GPS

12/2015

Updated Install Shield

03/2016

Addressed Display Size setting

09/2016

Software Update

12/20/2018

Software and 6205s2 Update

03/23/2022

HS/QH

Bottom Tracking Updates

12/06/2022

Discover Bathymetric 0014878_REV_H

Warnings, Cautions, and Notes

Where applicable, warnings, cautions, and notes are provided in this manual as follows:

WARNING! Identifies a potential hazard that could cause personal injury or

death to yourself or others.

CAUTION! Identifies a potential hazard that could damage equipment or result

in data loss.

NOTE: Recommendations or general information that is particular to the

presented material. It may also refer to another part of this manual or another

manual.

SOFTWARE SERVICE OVERVIEW

EdgeTech provides software services free of charge. The Software Service Agreement (SSA) does not address

customer-specified modifications or enhancements. These services may be ordered separately. Furthermore,

EdgeTech software upgrades are meant for the sole use of EdgeTech customers. Any reproduction of EdgeTech

supplied software or file sharing is strictly prohibited.

Software Updates and Enhancements

EdgeTech customers can download new software releases with all modifications and enhancements, along with

the latest user manuals from the EDGETECH WEBSITE. Should major software issues occur, they will be reported

directly to the customer. New software releases consist of the following:

• Software enhancements that are not on the price list

• Software fixes and changes

• Product integration

• Documentation updates to online help

• Tests for compatibility with other modules

Software patches consist of software that has undergone the following:

• Minor software enhancements

• Software fixes and changes

The SSA entitles EdgeTech customers to contact EdgeTech Customer Service by telephone, fax, or e-mail to

report a difficulty, discuss a problem, or receive advice on the best way to perform a task. When contacted,

EdgeTech Customer Service will do the following:

• Respond within 24 hours via telephone, fax, and E-mail support

• Immediately attend to serious problems affecting operations

• Attempt to find an immediate work-around

Discover Bathymetric 0014878_REV_H

CUSTOMER SERVICE

Customer service personnel at EdgeTech are always eager to hear from users of our products. Your feedback is

welcome and a valuable source of information that we use to improve these products continually. We

encourage you to contact EdgeTech Customer Service to offer any suggestions or to request technical support:

NOTE: Please have your system Serial Number available when contacting

Customer Service.

E-mail: service@edgetech.com

Mail: 4 Little Brook Road

West Wareham, MA 02576

Telephone: (508) 291-0057

Fax: (508) 291-2491

24-Hour Emergency

Technical Support Line: (508) 942-8043

For more information, please go to WWW.EDGETECH.COM.

vii

COMPANY BACKGROUND

EdgeTech (formerly EG&G Marine Instruments) traces its history in underwater data acquisition and processing

back to 1966. EdgeTech has designed, developed, and manufactured products, instruments, and systems — for

the acquisition of underwater data, including marine, estuarine, and coastal applications — for over 50 years.

EdgeTech responds to the needs of the scientific, naval, and offshore communities by providing industry-leading

equipment — such as sub-bottom profilers, side scan sonar, acoustic releases, USBL positioning systems, and

bathymetric systems — that have become standards in the industry.

EdgeTech consistently anticipates and responds to future needs with an active research and development

program. Current efforts are focused on adapting new cutting-edge acoustic technology.

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TABLE OF CONTENTS

ABOUT THIS DOCUMENT ................................................................................................................... iii

Purpose of this Manual ....................................................................................................................... iii

License Statement ............................................................................................................................... iii

Liability ................................................................................................................................................ iii

Distribution .......................................................................................................................................... iii

Revision History ................................................................................................................................... iii

Warnings, Cautions, and Notes ........................................................................................................... iv

SOFTWARE SERVICE OVERVIEW .......................................................................................................... v

Software Updates and Enhancements ................................................................................................. v

CUSTOMER SERVICE .......................................................................................................................... vi

COMPANY BACKGROUND ................................................................................................................ vii

TABLE OF CONTENTS ....................................................................................................................... viii

LIST OF FIGURES ............................................................................................................................... xii

1 OVERVIEW ........................................................................................................................... 1-17

1.1 Key Features ............................................................................................................................ 1-17

1.1.1 High and Low-Frequency Side Scan Sonar .......................................................................... 1-17

1.1.2 Swath Bathymetry .............................................................................................................. 1-18

1.1.3 Motion Tolerant Display ..................................................................................................... 1-18

1.1.4 Data Recording and Playback ............................................................................................. 1-19

1.1.4.1 Binned JSF Bathymetry Data Files .............................................................................. 1-19

1.1.4.2 Staved JSF Diagnostic Data File .................................................................................. 1-19

1.1.4.3 XTF Files ...................................................................................................................... 1-20

1.1.4.4 Record during Playback .............................................................................................. 1-20

1.1.5 Third-Party Interfacing ........................................................................................................ 1-20

1.1.5.1 HYPACK ....................................................................................................................... 1-21

1.1.5.2 SonarWiz ..................................................................................................................... 1-21

1.1.5.3 Qinsy ........................................................................................................................... 1-21

1.1.5.4 CARIS ........................................................................................................................... 1-21

1.1.5.5 EIVA NaviSuite ............................................................................................................ 1-21

1.1.5.6 BEAMWORX Suite ....................................................................................................... 1-22

1.2 Modules ................................................................................................................................... 1-22

1.2.1 Target Logger ...................................................................................................................... 1-22

1.2.2 . Coverage Mapper ............................................................................................................. 1-22

2 DISCOVER BATHYMETRIC USER INTERFACE ........................................................................... 2-23

2.1 Discover-Bathymetric Window ................................................................................................ 2-23

2.1.1 Waterfall Displays ............................................................................................................... 2-27

2.1.1.1 Waterfall Display Components and Tools .................................................................. 2-28

2.1.1.2 Waterfall A-Scan Pane ................................................................................................ 2-29

2.1.2 Shortcut Toolbar ................................................................................................................. 2-29

2.1.2.1 Shortcut Toolbar Components and Controls .............................................................. 2-31

2.1.2.2 Gain Normalization Using Waterfall Display, A-Scan Pane, and Shortcut Toolbar .... 2-32

2.1.3 Discover Bathymetric Window Drop Down Menus ............................................................ 2-34

2.1.3.1 File Menu .................................................................................................................... 2-35

2.1.3.2 View Menu .................................................................................................................. 2-36

2.1.3.3 Configuration Menu ................................................................................................... 2-38

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2.1.3.4 Control Menu .............................................................................................................. 2-53

2.1.3.5 Bathymetry Menu ....................................................................................................... 2-55

2.1.3.6 Help Menu .................................................................................................................. 2-79

2.1.4 Lower Control Panel ........................................................................................................... 2-80

2.1.4.1 Main Status Line Display ............................................................................................. 2-80

2.1.4.2 Radio Indicator Tabs ................................................................................................... 2-81

2.1.4.3 Control Tabs ................................................................................................................ 2-82

2.2 Bathymetric Processor ........................................................................................................... 2-105

2.2.1 File ..................................................................................................................................... 2-106

2.2.1.1 Exit ............................................................................................................................ 2-106

2.2.2 View .................................................................................................................................. 2-106

2.2.2.1 Reset Dialog .............................................................................................................. 2-106

2.2.2.2 Connection Status ..................................................................................................... 2-106

2.2.2.3 Auxiliary Sensors ....................................................................................................... 2-107

2.2.2.4 Engineering Displays ................................................................................................. 2-107

2.2.2.5 Processing Parameters ............................................................................................. 2-107

2.2.2.6 Processing Details ..................................................................................................... 2-107

2.2.3 Control Menu .................................................................................................................... 2-107

2.2.3.1 Processing ................................................................................................................. 2-108

2.3 Motion Tolerant Display Window .......................................................................................... 2-109

2.4 Coverage Mapper Window .................................................................................................... 2-111

3 TROUBLESHOOTING ........................................................................................................... 3-112

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LIST OF FIGURES

Figure 1-1: High and Low-Frequency Side Scan Imagery ......................................................................... 1-18

Figure 2-1: Discover Bathymetric Desktop .............................................................................................. 2-23

Figure 2-2: Labeled Discover – Bathymetric Window .............................................................................. 2-24

Figure 2-3: Discover – Bathymetric Window With Data .......................................................................... 2-24

Figure 2-4: Bathymetric Results Window ................................................................................................ 2-25

Figure 2-5: Bathymetric Binning Window ................................................................................................ 2-25

Figure 2-6: Bathymetric Seafloor Window ............................................................................................... 2-26

Figure 2-7: Bathymetric Processor Window ............................................................................................ 2-26

Figure 2-8: High-Frequency Waterfall Display ......................................................................................... 2-27

Figure 2-9: A-Scan Pane ........................................................................................................................... 2-29

Figure 2-10: Shortcut Toolbar (Sonar Off) ............................................................................................... 2-29

Figure 2-11: Shortcut Toolbar (Sonar On) ................................................................................................ 2-29

Figure 2-12: Left-Side Low-Frequency Shortcut Toolbar Controls ........................................................... 2-29

Figure 2-13: Shortcut Toolbar Recorder Buttons (Sonar On) .................................................................. 2-30

Figure 2-14: Shortcut Toolbar Recorder Buttons (Sonar Off) .................................................................. 2-30

Figure 2-15: Right Side High-Frequency Shortcut Toolbar Control .......................................................... 2-30

Figure 2-16: Shortcut Toolbar Controls ................................................................................................... 2-31

Figure 2-17: Discover Waterfall without Normalized Gain and TVG ....................................................... 2-32

Figure 2-18: A-Scan Pane With Very High Return Amplitudes ................................................................ 2-32

Figure 2-19: Discover Waterfall Imagery with Normalized Gain and TVG. .............................................. 2-33

Figure 2-20: Cropped High-Frequency A-Scan with More Normalized Gain and TVG ............................. 2-33

Figure 2-21: High-Frequency Shortcut Toolbar with Auto Normalization and TVG Turned On .............. 2-33

Figure 2-22: Configure Display Window- Frequency Auto Normalize (Gain) and TVG Turned On .......... 2-34

Figure 2-23: The Discover Bathymetric Main Menu Options .................................................................. 2-34

Figure 2-24: File Menu ............................................................................................................................. 2-35

Figure 2-25: View Menu ........................................................................................................................... 2-36

Figure 2-26: Altitude Display Dialog Box .................................................................................................. 2-37

Figure 2-27: Depth Display Dialog Box ..................................................................................................... 2-37

Figure 2-28: Pitch/Roll Display Dialog Box ............................................................................................... 2-37

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Figure 2-29: Water Depth Display Dialog Box .......................................................................................... 2-38

Figure 2-30: Configuration Drop Down Menu ......................................................................................... 2-38

Figure 2-31: Configuration Drop Down Menu Image Capture Drop Down Menu ................................... 2-39

Figure 2-32: Configuration Drop Down Menu Sonar Drop Down Menu ................................................. 2-39

Figure 2-33: Display Configuration .......................................................................................................... 2-40

Figure 2-34: Shortcut Toolbar Normalization and Auto TVG Selections ................................................. 2-41

Figure 2-35: Record Configuration ........................................................................................................... 2-42

Figure 2-36: Image Capture Sub-Menu .................................................................................................... 2-43

Figure 2-37: Image Capture Configuration for SSH .................................................................................. 2-44

Figure 2-38: Image Capture for Configuration for SSL ............................................................................. 2-44

Figure 2-39: NMEA Navigation Output Configuration Window ............................................................... 2-45

Figure 2-40: The Baud Rate Selection Drop Down ................................................................................... 2-46

Figure 2-41: External Features ................................................................................................................. 2-46

Figure 2-42: Sonar Sub-Menu .................................................................................................................. 2-46

Figure 2-43: Sonar Port Settings .............................................................................................................. 2-47

Figure 2-44: Sonar Heave Setting ............................................................................................................. 2-48

Figure 2-45: Sonar One PPS Input ............................................................................................................ 2-48

Figure 2-46: System Time Set Configuration Window ............................................................................. 2-49

Figure 2-47: Network Configuration ........................................................................................................ 2-49

Figure 2-48: Select Installed Array Window ............................................................................................. 2-50

Figure 2-49: Configure Sonar Arrays Window: Change Confirmation ..................................................... 2-50

Figure 2-50: Trigger Configuration Window ............................................................................................ 2-51

Figure 2-51: Alert Configuration .............................................................................................................. 2-51

Figure 2-52: Alerts Configuration Results ................................................................................................ 2-52

Figure 2-53: Auxiliary Sensor Messages ................................................................................................... 2-53

Figure 2-54: Control Menu ....................................................................................................................... 2-53

Figure 2-55: Advanced Sonar Controls .................................................................................................... 2-54

Figure 2-56: Connection Info ................................................................................................................... 2-54

Figure 2-57: Diagnostic Window .............................................................................................................. 2-55

Figure 2-58: Bathymetry Menu ................................................................................................................ 2-55

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Figure 2-59: Bathymetric Results Display Window .................................................................................. 2-56

Figure 2-60: Bathymetric Results View Drop Down Menu ...................................................................... 2-58

Figure 2-61: Bathymetric Results Window-Marked Gates and Points .................................................... 2-58

Figure 2-62: Binning Display (Distance) ................................................................................................... 2-60

Figure 2-63: Bathymetric Seafloor Display .............................................................................................. 2-60

Figure 2-64: Bathymetric Seafloor Display View Menu ........................................................................... 2-61

Figure 2-65: Basic Bathymetric Controls Window ................................................................................... 2-62

Figure 2-66: Bathymetric Results Display Window .................................................................................. 2-62

Figure 2-67: Binning Section of Basic Bathymetric Controls Window ..................................................... 2-63

Figure 2-68: Limit Section of Basic Bathymetric Control Windows ......................................................... 2-64

Figure 2-69: Boat Echoes in Display ......................................................................................................... 2-64

Figure 2-70: Swath to Depth Ratio Filter ................................................................................................. 2-65

Figure 2-71: Advanced Bathymetric Controls Window ........................................................................... 2-66

Figure 2-72: Bathymetric Results Display Window .................................................................................. 2-67

Figure 2-73: Binning Settings of Advanced Bathymetric Controls Window ............................................ 2-67

Figure 2-74: Limit Section of the Advanced Bathymetric Controls Window ........................................... 2-68

Figure 2-75: Sidescan Imagery with Boat Echo ........................................................................................ 2-69

Figure 2-76: Swath to Depth Ratio Filter ................................................................................................. 2-70

Figure 2-77: Filter Section of Advanced Bathymetry Controls Window .................................................. 2-71

Figure 2-78: Manual Echo Strength Filter Setting .................................................................................... 2-72

Figure 2-79: Water Column Filtering Range............................................................................................. 2-72

Figure 2-80: Motion Tolerant Data Dialog Window ................................................................................. 2-73

Figure 2-81: Motion Tolerance Side Scan Window .................................................................................. 2-74

Figure 2-82: Engineering Controls............................................................................................................ 2-75

Figure 2-83: Auto Detect Altitude Disabled ............................................................................................. 2-75

Figure 2-84: Example Extreme Circumstance - Surveying Next to a Reef Bank....................................... 2-76

Figure 2-85: Example Extreme Circumstance - Input Approximate Depth .............................................. 2-76

Figure 2-86: Advanced Processing Refinements ...................................................................................... 2-77

Figure 2-87: Processing Refinements - Advanced Controls ..................................................................... 2-78

Figure 2-88: Shortcut Toolbar for Low Frequency (left) and High Frequency (right) .............................. 2-78

Figure 2-89: Inputting a Manual TVG ....................................................................................................... 2-79

Figure 2-90: Help Menu ........................................................................................................................... 2-79

Figure 2-91: The Lower Control Panel ..................................................................................................... 2-80

Figure 2-92: The Main Status Line Display Section of the Lower Control Panel ...................................... 2-80

Figure 2-93: The Radio Indicator Tabs Section of the Lower Control Panel ............................................ 2-81

Figure 2-94: The Top of the Control Tabs ................................................................................................ 2-82

Figure 2-95: Sonar Control Tab ................................................................................................................ 2-82

Figure 2-96: Video Gains Tab ................................................................................................................... 2-83

Figure 2-97: Display Tab ........................................................................................................................... 2-84

Figure 2-98: Display Palettes .................................................................................................................... 2-85

Figure 2-99: Motion Tolerant Tab ............................................................................................................ 2-85

Figure 2-100: Display Palettes .................................................................................................................. 2-86

Figure 2-101: Disk Tab .............................................................................................................................. 2-87

Figure 2-102: Configuration Drop Down Record Configuration Location ................................................ 2-89

Figure 2-103: Configure Recording Window ............................................................................................ 2-89

Figure 2-104: Discover UI Disk Tab and Recorder Browse Button Locations .......................................... 2-90

Figure 2-105: Select Folder Window ........................................................................................................ 2-90

Figure 2-106: Cropped Lower Control Panel Record Setting Check ........................................................ 2-91

Figure 2-107: Discover UI-Locations of Record Buttons .......................................................................... 2-91

Figure 2-108: Discover UI- Recording Verification ................................................................................... 2-92

Figure 2-109: Discover UI-Stop Recording Button Locations ................................................................... 2-92

Figure 2-110: Saved .jsf Files .................................................................................................................... 2-93

Figure 2-111: Discover UI- Disk Tab Displayed ........................................................................................ 2-93

Figure 2-112: Disk Tab Browse Button Select File Window ..................................................................... 2-94

Figure 2-113: Populated High-Frequency Waterfall ............................................................................... 2-94

Figure 2-114: Discover UI File Playback ................................................................................................... 2-95

Figure 2-115: Shortcut Toolbar Normalize Gain and Autoset TVG Buttons ............................................ 2-95

Figure 2-116: Waterfall Display Shortcut Toolbar Gain and TVG adjustment ......................................... 2-95

Figure 2-117: Disk Control Tab- Record Browse Button .......................................................................... 2-96

Figure 2-118: Disk Control Tab- Playback File Browse Button ................................................................. 2-96

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Figure 2-119: Select Any Discover Data File Dialog ................................................................................. 2-97

Figure 2-120: Disk Control Tab File Playback Confirmation ..................................................................... 2-97

Figure 2-121: Bathymetric Drop Down- Basic and Advanced Controls ................................................... 2-98

Figure 2-122: Basic Bathymetric Controls Window ................................................................................. 2-98

Figure 2-123: Advanced Bathymetric Controls Window ......................................................................... 2-99

Figure 2-124: Disk Control Tab Bathymetric File Process Status ............................................................. 2-99

Figure 2-125: Processed Binned File Located In Recording Directory ................................................... 2-100

Figure 2-126: Bottom Track Tab ............................................................................................................ 2-100

Figure 2-127: High-Frequency Display With Active Bottom Tracking On (Red Lines) ........................... 2-101

Figure 2-128: Grids Tab .......................................................................................................................... 2-102

Figure 2-129: Grids setup to Display Vertical Mark every 10 M ............................................................ 2-103

Figure 2-130: Image Capture Tab ........................................................................................................... 2-104

Figure 2-131: Status Tab ........................................................................................................................ 2-104

Figure 2-132: Bathymetric Processor Module ....................................................................................... 2-105

Figure 2-133: The Bathymetric Processor File Menu ............................................................................. 2-106

Figure 2-134: The Bathymetric Processor View Menu .......................................................................... 2-106

Figure 2-135: The Bathymetric Processor View, Engineering Sub-Menu .............................................. 2-107

Figure 2-136: The Bathymetric Processor Control Menu ...................................................................... 2-107

Figure 2-137: Bathymetric Processor Processing Selection ................................................................... 2-108

Figure 2-138: Processing Dialog and Bathymetric Processing Dialog Comparison ................................ 2-108

Figure 2-139: Motion Tolerant Display Window .................................................................................... 2-109

Figure 2-140: Motion Tolerant Control Tab ........................................................................................... 2-109

Figure 2-141: Motion Tolerance Correction .......................................................................................... 2-110

Figure 2-142: Discover Coverage Mapper Window ............................................................................... 2-111

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1 OVERVIEW

Discover Bathymetric is EdgeTech’s survey software provided with many EdgeTech Bathymetric systems

to monitor and control systems and process, observe, and record side-scan and bathymetric surveys. The

software is designed to be run on a topside Windows® computer that is connected to an EdgeTech sonar

system and compatible navigation system. Discover provides the controls and real-time monitoring to

operate these systems and provides attractive waterfall displays to observe and record data in replayable

JSF bathymetry files. The option to record XTF files is available as well. A Motion Tolerant Display provides

clear imagery in more adverse survey conditions. A Bathymetric Processor module provides control and

monitoring of bathymetric processes. EdgeTech’s Coverage Mapper and Target Logger Modules provide

for saving surveys, target, and chart information. Discover Bathymetric interfaces with numerous third-

party products providing for numerous customer survey requirements.

Discover works by signaling the hardware to send out a linear CHIRP pulse and then interpreting the

received echoes. The echo signals are amplified and band-limited to encompass useable array bandwidth

and then digitized. The pulse compression and echo separation are achieved through CHIRP Matched

Filtering (MF). For each transmitted pulse, MF is implemented in digital signal processing (DSP), where the

echo data is digitally correlated with a replica of the transmit signal. The CHIRP waveform processing

provides both signal gain during pulse compression and out-of-band noise rejection. The result is high-

quality seafloor images that can be viewed in real-time using the program’s waterfall display and recorded

as a JSF file for later playback.

1.1 Key Features

Key Discover Bathymetric features include:

• High and Low-Frequency Side Scan Sonar

• EdgeTech Swath Bathymetry

• Motion Tolerant Display

• Data recording and playback

• Third-Party Interfacing

• Target Logger and Coverage Mapper

1.1.1 High and Low-Frequency Side Scan Sonar

Discover can control, display, and record two frequencies at one time. The high and low frequencies

available depend on the system type purchased, and both are displayed in DISCOVER’S BATHYMETRIC

WINDOW. The systems and displays can be independently activated and controlled using Discover

Bathymetric’s WATERFALL DISPLAY WINDOWS, SHORTCUT TOOLBARS, DROP DOWN MENUS, and LOWER CONTROL

PANEL.

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Discover Bathymetric 0014878_REV_H

NOTE: Specific technical specifications and details on your system can be

found in the HARDWARE MANUAL shipped with your system.

Figure 1-1: High and Low-Frequency Side Scan Imagery

1.1.2 Swath Bathymetry

Discover Bathymetry controls and displays real-time, high-resolution, three-dimensional (3D) seafloor

maps while providing co-registered simultaneous dual-frequency side-scan imagery. Bathymetry can be

activated, controlled, and displayed from selections in the BATHYMETRY DROP DOWN MENU. A separate

BATHYMETRIC PROCESSOR MODULE provides further controls and monitoring. BASIC and ADVANCED controls

allow for adjustments to filter settings, data collection gates, quality factors, and binning parameters. The

BATHYMETRY, BINNED, and SEAFLOOR displays allow for quality checks during acquisition and visualization of

the filter and gating functionality. Discover Bathymetry does allow for saving raw staved JSF files.

1.1.3 Motion Tolerant Display

A MOTION TOLERANT DISPLAY WINDOW is provided for capable systems to display clear side-scan imagery in

rougher conditions by correcting the yaw artifacts found in the side scan mosaic. Controls for this feature

are located in the BATHYMETRIC DROP DOWN MENU. Controls for display are provided in the MOTION

TOLERANT WATERFALL DISPLAY, SHORTCUT TOOLBAR, and MOTION TOLERANT TAB and are operated similarly to

its side scan counterparts.

1-19

1.1.4 Data Recording and Playback

Discover Bathymetric provides for recording data in EdgeTech JSF file format. Recording configuration is

done in the RECORD CONFIGURATION WINDOW with options to record XTF and Staved JSF files. Recording and

playback controls are found in the SHORTCUT TOOLBARS and the DISK CONTROL TAB. Display parameters can

be controlled and modified during recording and playback. An image capture feature is also provided that

records marked-up JPEG image files. Image capture configuration and control are done in the IMAGE

CAPTURE WINDOW and IMAGE CAPTURE TAB.

NOTE: All file types include all the supporting information necessary to

correct the Bathymetry (Time, Position, Heading, Attitude, Sound

Velocity, and, if available, GPS status and Geoid Height).

1.1.4.1 Binned JSF Bathymetry Data Files

Discover records data using EdgeTech’s native binned JSF file format, which has the advantage of not

reflecting run-time display settings, such as screen gain and software TVG settings. A binned JSF data file

contains bathymetry (range and angle data) in which the multiphase echo sounder (MPES) data has been

binned based on a user-defined number of beams (or bins) and total swath. This format closely resembles

the output format of a traditional dual-headed multibeam. A binned JSF file can be identified by the

keyword “_Binned” and is the standard output format of Discover Bathymetric. This keyword is appended

to the end of every sonar data file. An example file name used to designate a sonar data file is

20130829150420_Binned.jsf.

1.1.4.2 Staved JSF Diagnostic Data File

A diagnostic data file contains all of the unprocessed stave or individual receiver data used to compute

the solutions of the seafloor. This file type does not contain bathymetry and is designated by the keyword

“_Stave.” This keyword is appended to the end of every diagnostic file. An example file name used to

designate a stave file is 20130829150420_Stave.jsf.

NOTE: For legacy systems, a diagnostic file may be designated by the

word “Stave” without the underscore.

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Discover Bathymetric 0014878_REV_H

NOTE: In AUV cases in which Discover Bathymetry or Discover AUV can’t

be run for real-time data collection, all files produced are stave files.

These must be processed with Discover Bathymetric to generate

“Binned” files before third-party software processing. This occurs for any

AUV System that is not using Discover AUV. Discover AUV is a simplified

version of Discover Bathymetric, made specifically for AUV systems.

These stave files can be identified if the filename doesn’t contain the

words “Stave” or “Binned.”

1.1.4.3 XTF Files

Discover allows the user to record XTF files along with JSF files. This is done by turning the feature on in

the CONFIGURE RECORDING WINDOW. This can be done during acquisition or later by playing a JSF file back

and recording it with the XTF file option turned on. XTF files cannot be played back in Discover.

XTF lacks some of the flexibility offered by JSF format. Data recorded directly to XTF loses valuable system

setting information that may prove useful for later error diagnosis.

For these reasons, EdgeTech recommends acquiring and archiving data in the native JSF format. JSF files

can then be converted to XTF later if needed. Discover records automatically in the JSF format by default.

NOTE: Please refer to the xtf standard documentation found at the ECA

GROUP WEBSITE for interfacing with xtf files. Sample data is stored as a

signed short integer.

1.1.4.4 Record during Playback

Discover’s playback and record options work independently, allowing useful options such as:

• Playback files or parts of playback files can be recorded.

• The data file source can be changed during playback or recording.

• The features above allow the user to concatenate several input files into one output file and "snip"

a section out of an input file to make a shorter output file

• This feature can be used to PROCESS STAVED JSF INTO BINNED JSF FILES.

1.1.5 Third-Party Interfacing

Currently, there are several third-party software packages that EdgeTech has approved to use with

Bathymetry systems, and work continues to expand this approved software group. A brief description is

listed below. For the latest list of third-party software packages, contact EDGETECH CUSTOMER SERVICE.

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Edgetech Discover Bathymetric Owner's manual

Edgetech Discover Bathymetric Owner's manual

Edgetech Discover Bathymetric Owner's manual

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