Geophysical software

• Coastal management • Pipeline inspection • Hydrographic survey • Geophysical exploration
• Geotechnical investigation • Coastal engineering • Habitat Mapping • Mine warfare

DELPH S.A.S.

DELPH SAS

STREAMLINED SAS TECHNOLOGY IN AN INDUSTRY-PROVEN WORKFLOW


All SAS sonars require dedicated processing software for dealing with the amount and format of the SAS collected data. This hardly accommodates requirements from the survey industry to standardise the processing and interpretation tasks for geophysical data. iXBlue especially addresses this need with SAS integration into DELPH Sonar Interpretation software suite. The addition of a new module – DELPH SAS – fully integrates Synthetic Aperture Sonar imaging into an industry proven processing software.
DELPH is the industry leading software suite providing the best productivity in a user-friendly environment thanks to a highly optimized workflow. Appreciated by major survey companies it now allows the full integration of SAS data together with conventional side-scan sonar, bathymetry, sub-bottom profiling, magnetic and other information layers. All existing features available in DELPH Sonar Interpretation like batch data processing and mosaicking, target picking and management, interpretation and seabed classification are now also available for SAS imagery.

FEATURES

 
Real-time absolutely positioned imagery

Usual SAS data processing only relies on ping-to-ping correlation to increase image resolution and when possible determine its position using micro-navigation. DELPH SAS processing tightly couples sonar and Inertial Navigation System data, thus producing naturally geo-referenced images, with a very robust algorithm that is not sensible to vehicle movements. The possible integration of absolute positioning from USBL sensor completes the unique capability of delivering accurately geo-referenced SAS data in real-time. Near perfect line matching immediately benefits to data interpretation, while a minimal positioning ambiguity helps in targeting accuracy. Data processing and mosaicking is faster than real-time which even allows online data interpretation.
  • Real-Time absolute positioning accuracy
  • Full-resolution INS-based navigation and motion compensation
  • Real-Time USBL data fusion (optional)
  • Micro-navigation computation
  • Native production of standard XTF records and GeoTIFF mosaics

Full Image - truly benefiting from the longer range capability

Multi-ping integration in SAS processing results in superior resolution and larger range capability as the signal to noise ratio improves. A wider beam-width and multi-channel beam-forming on port and starboard ensures a complete natural insonification of the seabed even at shorter ranges and in rough sea conditions. Additionally, DELPH SAS integrates the co-registered gap-filler images of the seabed at nadir, which provides users with full swath sonar coverage. As SAS technology extends the sonar range and the need for overlapping survey lines is reduced, further survey planning optimization is made possible. Duplicate data management is limited, thus saving time and money.
  • Robust SAS processing against sensor motion
  • Natural 100% across and along-track coverage at any speed
  • Co-registered gap-filler, sub-bottom profiler and bathymetry (option)
  • SAS multi-channel beam-forming
  • Spatial multi-ping integration
  • User choice between image quality (classification) and resolution (detection) at any desired resolution.
  • Optimized multi-core parallel processing

All benefits from DELPH Sonar Interpretation software

DELPH SAS fully integrates in DELPH Sonar Interpretation with all its features and advanced capabilities:
  • Native production of standard XTF records and GeoTIFF mosaics
  • Target analysis and databasing tools
  • Manual and automatic seabed classification
  • Batch data processing
  • Seamless integration with conventional side-scan sonar data
  • 3D Multi-Sensor cartographic visualization in DELPH RoadMap
  • Multi-Sensor integration with sub-bottom profiler, magnetometer, bathymetry and any geo-referenced dataset
DELPH SAS & conventional side-scan sonar common workflow

100kHz SAS Towfish data - Wreck debris using (1) side-scan processing (2) SAS quality processing (3) SAS resolution processing

100kHz SAS Towfish data - Wreck debris using (1) side-scan processing (2) SAS quality processing (3) SAS resolution processing

100kHz SAS Towfish data - Real-Time absolute positioning & gap-filler sonar integration

100kHz SAS Towfish data - Real-Time absolute positioning & gap-filler sonar integration (zoom)