A high speed digital data system for underwater acoustic measurements

A high speed digital data system, incorporating some novel features such as duobinary baseband transmission, has been designed for at-sea underwater acoustic measurements. The system performance requirements, configuration, functional blocks and in-use results are outlined in this paper. While the equipment described uses a coaxial cable between the underwater unit and the recording ship, the design is adaptable to R.F. telemetry techniques using a free-floating or moored buoy.