“…The model-based techniques often utilize physics-based acoustic backscatter models to characterize the seafloor sediments by optimizing the match between the measured and the modeled signals (Sternlicht and de Moustier, 2003a, b;van Walree et al, 2006;De and Chakraborty, 2011;Snellen et al, 2011). The empirical methods however rely on the statistical and artificial neural network-based approaches to correlate the features of echo signals with the sediment type (van Walree et al, 2005;Chakraborty et al, 2004;De and Chakraborty, 2009;Amiri-Simkooei et al, 2011;Madricardo et al, 2012).…”