Side-scan Sonar for Inspecting Coastal Structures
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چکیده
INTRODUCTION: SSS has been used to map the sea bottom and search for submerged objects since the 1960's (Fleming, 1976). Recent experiments by CERC and the Buffalo District have shown SSS to be useful for inspecting both sloping coastal structures (i.e., rubble-mound jetties and breakwaters) and vertical-wall structures (i.e., concrete caissons and timber cribs). SSS is an adaptation of high-frequency depth sounders. It uses sound energy projected laterally to produce an acoustic image of the sea bottom or submerged structure (Figure 1).
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