3.4 Conclusions
The theoretical definition of the optimal sampling requirements has enabled us to identify key parameters (signal types, positioning accuracy) and a clear surveying strategy (line scans and rotation scans of particular targets, combination of imaging geometries). The scaled experiments complemented these with quantitative measurements, and enabled us to define a set of systematic and thorough quality-assurance procedures, which were used to control the quality of data acquisition during the sea trials. Some critical challenges could be thus addressed (e.g., signal losses, positioning problems), which would have gone unnoticed otherwise. Quantifying the ranges of scattering variations due to the environment, the seabed or the imaging geometries has also helped to ascertain which variations can be attributed to the target’s condition.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
CHAPTER 3
Blondel, Ph., N.G. Pace, G.J. Heald and R. Brothers (2001) High-frequency bistatic scattering: Comparison of tank and sea experiments, in Acoustical Oceanography, T.G. Leighton, G.J. Heald, H.D. Griffiths and G. Griffeths (eds), Proceeding of the Institute of Acoustics,23(2), 276–282.
Blondel, Ph., McCloghrie, P., Pace, N.G., Heald, G.J. and Brothers, R. (2002) High-frequency Bistatic botom scattering: Modelling and experimental studies, in Proceedings of the Sixth European Conference on Underwater Acoustics ECUA-2002, Gdansk, Poland, pp. 21–29.
Canepa, G., Pace, N.G. and Pouliquen, E. (2002) Field measurements of bistatic scattering Strength of a sandy seabed at 118kHz. Proceedings of the Sixth European Conference on Underwater Acoustics, Gdansk, Poland, pp. 183–188
Jayasundere, N. and Blondel Ph. (2004) Multiple-Aspect Scaled Tank Experiments and Processing Scheme Evaluation,SITAR Technical Report D-16, 46pp. SITAR, Bath.
Karasalo, I. and Skogqvist, P. (2004) Transient scattering from submerged and buried objects. Proc. European Conference on Underwater Acoustics 2004, Delft, Netherlands, pp. 451–456
Larsen, M.A. and Hovem, J.M. (2003) Multiple-Aspect Scattering Measurement Requirements,SITAR Technical Report D-10, 13 pp. SITAR, Bath.
Pace, N.G. (2004) Bistatic detection of buried objects, in Underwater Acoustic Seminars from The SITAR Project, SITAR. Livorno, Italy,CD-ROM,January.
Skogqvist, P. and Karasalo, I. (2003) A fast acoustic scattering method for buried objects,in 10th International congress On Sound and Vibration,Stockholm,Sweden, A. Nilsson and H. Boden (eds), Vol.5,pp.2457–2465.
Williams, K.L. and Jacksons, D.R. (1996) A Model for Bistatic Scattering into Ocean Sediments For Frequencies from 10–100 kHz. APL-UW Technical Report TR-9505, University of Washington.
Williams, K.L. and Jackson, D.R. (1998) Bistatic bottom scattering: Model, experiments and model/data Comparison. J.Acoust.Soc.Am., 103(1), 169–181.
Rights and permissions
Copyright information
© 2007 Praxis Publishing Ltd, Chichester, UK
About this chapter
Cite this chapter
Blandel, P., Pace, N.G., Jayasundere, N., Cosci, M., Hovem, J.M., Larsen, M.A. (2007). Multiple-aspect scattering (MAS) measurements. In: Buried Waste in the Seabed—Acoustic Imaging and Bio-toxicity. Springer Praxis Books. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-28121-4_3
Download citation
DOI: https://doi.org/10.1007/978-3-540-28121-4_3
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-28120-7
Online ISBN: 978-3-540-28121-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)