Characteristics of receiving antenna arrays measured in a shallow sea

A diagnostic technique for receiving hydroacoustic antenna arrays operating in a shallow sea is presented. The technique reconstructs the hydrophone transfer coefficients, the array profile, and its position relative to the surface and the bottom. A stepped-frequency source and a special receiving element with a known transfer coefficient are used. The technique is illustrated by experimental hydroacoustic data, and the error in reconstructing each of the parameters is estimated.