Shallow water communication system for an AUV

This paper provides an overview of the structure and performance of an acoustic communication system, designed for use between an autonomous underwater vehicle and its surface base station. The emitter/receiver hardware implementation is briefly described, and its relevant features are emphasized. In the remainder of the paper, the key point in global performance-digital processing of the received signal-is considered. To cope with the intersymbol interference and other distortions associated with the underwater acoustic channel, a structure which combines adaptive equalization and estimation of the synchronization parameters is used. The overall performance is illustrated with experimental results using real data