March 2005GeoDAS Overview GeoDAS: Geophysical Data Acquisition System.

March 2005GeoDAS Overview

GeoDAS:Geophysical Data Acquisition

System

March 2005GeoDAS GUI Overview

What is GeoDAS?

Geophysical Data Acquisition System

Not the sonar…

But rather the survey system


GeoDAS Development

• Begun in 1994

• Purpose-built software for quantitative seafloor mapping

• Designed for new breed of digital sonars: Edgetech DF-1000, Ultra, etc.

• POSIX-compliant, UNIX OS, C/C++

• Adapted by USN in 1995

• Ported to Windows in 1998


GeoDAS:Geophysical Data Acquisition System

Data Input OIC Software Output

Navigation

Sidescan

Sub-Bottom

Bathymetry

Magnetometry

Media

Printers

Final Maps

Data goes in, pictures come out


GeoDAS Design Philosophy

• Never lose data – 24/7/365 logging

• Always log RAW data

• Process data in real-time

• Time-stamp to 1 ms

• Geo-code (mosaic) in real-time

• Built-in measurement, targeting, database, reporting, mission utilities


What can GeoDAS do for you?

• Interface to sensor(s)

• Log Raw Data & NAV

• Enhance Imagery

• Suppress Artifacts

• Calculate altitude

• Mark Targets

• Show Coverage

• Display Charts

• Archive Data

• Print Data


What ELSE can GeoDAS do for you?

Real-time integration ofSensor navigation & attitude

with

Real-time processed sonar data

Means:

Real-time mosaicking


Supports Data Acquisition & Real-Time Processing from a Wide Range of Sensors:

SidescanAll Benthos/Datasonics

All Edgetech

All Klein

Tritech

C-Max

Imagenix

Edo

SeaScan (Korea)

All MSTL

Any analog 2/4 channel



Sidescan

Multi-beamAll RESON SeaBat

All SIMRAD EM series

Odom Echoscan

Seabeam/Elac

Atlas Hydrosweep



Sidescan

Multi-beam

InterferrometricAll SeaMARC Series

All Ultra Deepscan

RDI BSSS

TAMU-TAMU

Submetrix

AMS 50/60/120

Benthos C3D (soon)



Sidescan

Multi-beam

Interferrometric

Optical Raytheon Laser Linescan



Sidescan

Multi-beam

Interferrometric


Electronic Still Cameras



Sidescan

Multi-beam

Interferrometric


Electronic Still Cameras

“Streak LIDAR”

laser imaging plus

bathymetry!


Additional Processing Options:SAS

GeoDAS for Synthetic Aperture Sonar, with DTI & Ultra (UK)

Before SASAfter SAS


GeoDAS comes in a variety of packages:

Rack-Mount:Dual processor; removable 36 GB HDD, MO or tape drive; 1280x1024 graphics, 1 GB RAM, Gigabit Ethernic; 18.1” screen; Windows 2000; Options: Quad processors, media drives, HDD, multi-port Ethernet, up to 2GB RAM

Lunch-Box:Single processor, 18GB HDD; CD-RW; 1280x1040 graphics; 256MB RAM; 17.1” screen; removable keyboard; 10/100 Ethernic; Windows 2000 or NT; Option: second HDD or MO

Laptop:Single processor; 60GB HDD; 768MB RAM; 6 serial ports; 10/100 Ethernic; 1024x768 graphics; Windows 98, 2000 or NT


New GeoDAS Features:Electronics Charts: DNC, S-57, BSB, ARCS


New GeoDAS Features:Survey / way-point Layout (2-D)


New GeoDAS Features:SmartSonar

Issues:• Sensor complexity overwhelms operators

– Too much to adjust: range, gain,pulse-width, etc

• Operators may not be present (AUV)– how do we tune for unknown terrain?

• Better raw data would give better input to ATAR– And give better raw data for survey

• SAS makes ATAR mandatory– If we can detect in raw element data, may note even need SAS

Status:• CEROS (Centers of Excellence for Research in Ocean

Sciences) (DARPA $$) funded development of automatic sonar tuning, and target recognition

• Scheduled for release Fall of 2005


New GeoDAS Features: ROVer’s Eye Seabed visualization for Mission Planning / Exectuion

ROVer’s Eye GUI, showing Klein5500 data over Reson 8101 bathymetry

March 2005GeoDAS Overview

An example of Survey Planning and Execution with GeoDAS and

ROVer’s Eye


Mission Planning & Execution: Step 1: Select your region of interest

Point and Click on a location on one of several user selectable base maps


Mission Planning & ExecutionStep 2: Zoom in

Zoom in to map limits to refine selection


Mission Planning & ExecutionStep 3: Refine selection from chart

Charts, if available, are auto-loaded to help define area(DNC, S-57, BSB, etc.)


Mission Planning & ExecutionStep 4: Name/Define Project

Supply a project name, description, sampling/logging requirements, and refine position/ROI


Step 5: Backgroud bathymetry loaded in ROVer’s Eye:

Digital Bathymetric DataBase, Variable res. (DBDBV) included with GeoDAS, along with World Vector Shoreline data


Step 5 Option: User-supplied DataOptionally, user supplies their own hi-res bathy data


Step 6: Add a vehicle and point of View

Optionally adjust “bird’s” height


Step 7: Add Look-ahead ProfileLook-ahead view, w/adjustable range, min/maxZ, & warnings


Step 8: Add HUD Display graphics for heading, Pitch, Roll & Position


Start Your Survey!Update model on the fly with real-time data from vehicle


GeoDAS Summary:

GeoDAS available now, 100+ installationsSidescanSub-bottomMultibeamLaser LinescanSynthetic Aperture Sonar

24/7/365 Raw data loggingCapable of handling up to 18MB/secRealtime processing:

Artifact removal, shading correctionsFull nav. support, user selectable co-ords.Full attutide & geocoding at 30 HzRealtime and Post-processed mosaics

Options: Desktop, ROVer’s Eye, OICclass, OICpipetrack, OICcleansweep

March 2005GeoDAS Overview GeoDAS: Geophysical Data Acquisition System.

Documents

geodas overview geodas

sas geodas

sas slide

bathymetry slide

nt slide

selection slide

raw data process data

channel slide