Traditionally, underwater acoustic modems and positioning systems were developed for
military and Oil & Gas industries, that require deep water deployments and extremely …

We present Piezo-Acoustic Backscatter (PAB), the first technology that enables backscatter
networking in underwater environments. PAB relies on the piezoelectric effect to enable …

Underwater acoustic localization has traditionally been challenging due to the presence of
unknown environmental structure and dynamic conditions. The problem is richer still when …

Can we build a battery-free underwater GPS? While underwater localization is a long-
studied problem, in this paper, we seek to bring it to battery-free underwater networks. These …

Underwater swarm robotics has gained prominence as an innovative paradigm for diverse
applications, including environmental monitoring and marine exploration. This review article …

The high cost associated with autonomous underwater vehicles (AUVs) capable of
operating beyond the mesopelagic ocean zone has prevented the extensive study of the …

Experiments carried out at NUWC's Seneca Lake facility in the summer of 2020 demonstrate
the efficacy of underwater navigation via a single spiral wavefront (SWF) acoustic beacon …

Underwater wireless localization systems are expensive due to the cost of hydrophones.
The method and the architecture of the localization system should be adapted to the …

Insulation resistance and capacitance are used as indicators of the health of hydrophones
used for sonar applications on naval platforms. It is found that an increase in capacitance of …