This paper describes short range and tactile optical fibre sensors for marine applications. The sensors are designed for obstacle avoidance on unmanned underwater vehicles (UUVs) operating in confined spaces, but have other possible applications. The fibre sensors augment the sensory abilities derived from ultrasonic and other sensors employed for marine proximity measurement. Of particular int...

Marine Autonomous Vehicles, either Surface (ASV) or Underwater (AUV) are becoming the kingpin for ocean research and sea exploration. Long term and high persistence are highly desirable characteristics for adding to these autonomous platforms. The possibility of performing adequate tasks by using low cost underwater vehicles could multiply the number of agents in the area and therefore, providi...

There have been rigorous research and dev elopment of unmanned aerial vehicles in the field of search and rescue (SAR) operation recently. UAVs reduce unnecessary human risks while assisting rescue efforts through aerial imagery, topographic mapping and emergency delivery. The app lication of UAVs in offshore and nearshore marine SAR missions is discussed in this paper. Projects that integrate ...

Particulate Matter (PM(10)) has been one of the main air pollutants exceeding the ambient standards in most of the major cities in India. During last few years, receptor models such as Chemical Mass Balance, Positive Matrix Factorization (PMF), PCA-APCS and UNMIX have been used to provide solutions to the source identification and contributions which are accepted for developing effective and ef...

Due to its applications in marine research, oceanographic, and undersea exploration, underwater communication has been recently under intense investigation. Although underwater communication has been improving its performance (in terms of bandwith, QoS, etc.), image transmission in autonomous underwater vehicles (AUVs) networks is still considered a frontier work. Here, we address the progressi...

The increasing interest in autonomous marine systems and related applications has motivated, among others, the development of systems and algorithms for the dynamic positioning of underactuated marine vehicles (ships, surface vessels, underwater vehicles) under the influence of unknown environmental disturbances. In this paper we present a state feedback control solution for the navigation and ...

A recent concern in marine robotics is to consider the deployment of fleets of Autonomous Underwater Vehicles (AUVs) and Autonomous Surface Vehicles (ASVs). Multiple vehicles with heterogeneous capabilities have several advantages over a single vehicle system, and in particular the potential to accomplish tasks faster and better than a single vehicle. This paper addresses in this context the pr...

We introduce an event driven communication logic for decentralized control of a network of robotic vehicles (agents). The strategy proposed is robust to packet losses and drives the vehicles to predefined paths while holding a desired geometric formation pattern. To this effect, the paper extends an existing cooperative path following framework to consider the practical case where communication...