Underwater surveillance has traditionally been carried out by means of surface and
undersea manned vessels equipped with advanced sensor systems. This approach is often …

This work describes a system for acoustic‐based navigation that relies on the addition of
localization services to underwater networks. The localization capability has been added on …

The accurate detection and quantification of submerged targets has been recognized as a
key challenge in marine exploration, one that traditional census approaches cannot handle …

Conventional active sonar systems transmit a high power and low refresh rate signal to keep
high power echoes from detected targets and maintain an effective detection range …

Recent advances in transducer and computing technology have pushed the concept of
continuous active sonar (CAS) or high duty cycle sonar as an area of interest for application …

CMRE has been evaluating the potential of autonomous networked ASW using underwater
vehicles through a program of sonar signal processing, underwater communications …

Autonomous Underwater Vehicles (AUVs) present a low-cost alternative or supplement to
existing underwater surveillance networks. The NATO STO Centre for Maritime Research …

Active sonar systems are used in the detection and localization of underwater targets. While
traditional approaches use pulsed active sonar (PAS) to transmit short bursts, high duty …

This work describes how the localisation of autonomous underwater vehicles can be
supported through networked acoustic communication. The localisation approach includes …

A processing technique for continuous active sonar (CAS) that uses linear frequency
modulation (LFM) waveforms is presented. LFM CAS employs wideband long-duration …