A Detailed Study of Sonar Tomographic Imaging
DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) MARITIME OPERATIONS DIV
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Sonar tomography is a technique to obtain a two-dimensional image of an underwater object using a sequence of one-dimensional images, or projections, of the object of interest. We discuss sonar tomography in a detailed manner and compare the performance of two important back-projection algorithms commonly used in tomography. The two processing techniques are applied to the imaging of relatively small underwater objects using high sonar frequencies, making use of simulated and experimental data. We also discuss system requirements, as well as the similarities and differences with radar applications. Ultimately, the performance of this underwater object imaging technique is determined by the availability of sufficiently high resolution projections andor sufficient coverage in object aspect.
- Numerical Mathematics
- Acoustic Detection and Detectors