Mobile range for measuring ship radiated acoustic noise

Abstract

The Mobile Range described in this paper allows measurements of noise radiated from both surface ships and submarines in open seas with bottom depths from less than lOOm to 400 meters. The range is being developed and built by Sonomar under contract with the Italian Navy. The system is semifixed, that is, it can be launched, utilized and recovered in short time or else, with some precaution, can be left operational for longer periods. In this paper a description of the system is given; the design criteria for the at-sea measuring equipment, the navigation of the vessel being tested and for at-shore data analysis are discussed.