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As with traditional sonar, synthetic aperture sonar (SAS) is susceptible to multipath contamination, reducing the quality and also modifying the statistics of the image. Such multipath contaminants may either be environmentally induced, as is often the case when attempting to image ranges greater than the water depth resulting in returns from the boundaries, or may be induced by the system's supporting...
Parameter estimation for the K distribution is an essential part of the statistical analysis of non-Rayleigh sonar reverberation and clutter for performance prediction, estimation of scattering properties, and for use in signal and information processing algorithms. Owing to the computational intensity of maximum likelihood techniques, the method of moments is often used to obtain parameter estimates...
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