AN IMPROVEMENT IN OR RELATING TO SIDE LOOKING SONAR APPARATUS

摘要

A side looking sonar transmitter projects acoustic energy to sonify a certain area on the sea bottom. A receiver apparatus forms a plurality of receiver beams for receiving reflected projected acoustic energy from a plurality of adjacent receiver strips. A display apparatus is provided for portraying signals associated with these strips. The area portrayed is made equal to or less than the area sonified and the apparatus is utilized in a linear mode or a rotating mode.