Simulated Interferometric Synthetic Aperture Sonar (InSAS) Data of the SS Thistlegorm Wreck

The simulated InSAS dataset is based on a high-resolution 3D model of the SS Thistlegorm ship wreck, which has been supplemented by a textured seafloor to provide a scene spanning an area of 220 by 135 m. The simulated sonar is similar to the NATO Centre for Maritime Research and Experimentation (CMRE) 300 kHz MUSCLE system.

Information and communication technologies
Instrumentation, sensors and detectors
Mechanical engineering
Tools, technologies and methods

Cite this dataset as:
Thomas, B., Hunter, A., 2023. Simulated Interferometric Synthetic Aperture Sonar (InSAS) Data of the SS Thistlegorm Wreck. Bath: University of Bath Research Data Archive. Available from:


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application/zip (686MB)
Creative Commons: Attribution 4.0


Ben Thomas
University of Bath

Alan Hunter
University of Bath


Simon Brown

University of Bath
Rights Holder


Data collection method:

The data were generated using a point-based model, which sums the simulated aspect-dependent amplitude-weighted echoes from a set of points distributed across the surface of the 3D model. There are a total of 30 million facets in the 3D model, and these were decomposed into a cloud of almost 1 billion points. The points were randomly distributed with a mean density of 10 points per resolution cell and occlusions were resolved by ray-tracing. The data have been pulse-compressed and compensated for spherical spreading under the assumption of negligible attenuation.

Technical details and requirements:

There are 368 ping files. Each file contains a 72 by 13751 matrix of complex values corresponding to 2x36 array elements and 13751 time samples. The sampling parameters are contained in the metadata file. There are 10 bathymetry files containing ideal depth maps on a horizontal x-y grid. The first one contains depths to the uppermost surfaces in the scene. The others contain depths at subsequent levels of layover. All files are in .mat format and can be read using Matlab or Python SciPy.


Office of Naval Research (ONR)

Micronavigation for Repeat-Pass SAS Interferometry

Publication details

Publication date: 10 May 2023
by: University of Bath

Version: 1


URL for this record:

Related papers and books

Thomas, B. W., and Hunter, A. J., 2023. Interferometric synthetic aperture sonar large scale simulated data benchmark of a ship wreck. Electronics Letters, 59(10). Available from:

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Alan Hunter


Faculty of Engineering & Design
Mechanical Engineering

Research Centres & Institutes
Centre for Space, Atmospheric and Oceanic Science
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