Underwater Security for ships, ports and maritime infrastructure

News page 1

Smarter optimisation for sensor coverage in UnderSec

UnderSec relies on networks of sensors to detect and localise unknown transmitters around areas of interest, including critical and underwater infrastructures. In many cases, not all installed sensors can be active at t…

Optical links: fast but sensitive

Optical underwater wireless communication (UWOC) uses light—typically in the blue‑green range—to transmit data through water. These systems can offer high bandwidth, low latency and good security because they rely on li…

Why underwater communications are so challenging

Underwater wireless communication is essential for monitoring and protecting critical subsea infrastructures, but the ocean is a very hostile environment for signals. Unlike in the air, underwater communication systems…

From simulations to real sea trials with defence partners

Before applying the methodology to operational contexts, the team tested it on simulated ship trajectories where the “true” path was known. These simulations allowed them to tune key parameters—such as velocity limits a…

Turning raw ship data into reliable tracks for security

Marine traffic data is often noisy: signals are lost, positions “jump” on the map, and speeds sometimes look physically impossible. This is especially challenging in sensitive maritime zones, including areas close to cr…

Real-world tests over Crete’s coastline

To validate the method, the authors implemented an experiment with four sensors deployed along the north coast of Crete, from the Rethymno to the Lasithi districts. The Area of Interest was defined over central Crete, a…

An efficient algorithm from input file to map

The study does not stop at theory: it presents a full algorithmic pipeline, from reading sensor data to delivering positions on a map. The algorithm is divided into clear stages, including reading and storing the input,…

How triangulation areas reveal where signals come from

The paper explains triangulation in simple geometric terms: sensors measure angles, not distances, and their bearing lines intersect to form small polygons where a transmitter might be. When more than one transmitter is…

A versatile solution for many application areas

Although the scientific article that inspired these news items focuses on wireless spectrum monitoring and security-related use cases, the methods developed are broadly applicable. Any situation where sensors are used t…

Adapting to failures and changes in real time

No monitoring system is perfect, and real-life situations often involve unexpected changes, such as sensor malfunctions, maintenance needs or environmental shifts. The UnderSec study includes scenarios that explore what…

Planning better sensor networks before installation

Installing or upgrading a sensor network in the real world is expensive and time-consuming, especially when it involves critical areas such as ports, coastal zones or other sensitive infrastructures. UnderSec’s research…

Turning complex maths into practical maps for security

Behind the user-friendly maps developed in UnderSec lies a rigorous scientific method that uses geometry, signal behaviour and advanced algorithms. Traditionally, analysing wireless sensor coverage requires dealing with…

New tool shows “blind spots” in sensor coverage

The UnderSec project is working to make complex sensor networks easier to understand and manage for everyone involved, from engineers to public authorities and citizens. In many monitoring systems, such as those used to…

Joint Workshop Cancellation Announcement

The General Assembly of UNDERSEC Project held on the 1st of August 2025, considering the lack of registrations, decided, in accordance with SMAUG Project, to cancel the joint workshop expected for the 16th of September…

UNDERSEC 2nd Plenary Meeting

The UnderSec Project held its 2nd Plenary Meeting from October 22 to 24, 2024, at the NATO Maritime Interdiction Operations Training Center (NMIOTC) in Chania, Crete, Greece. This gathering brought together experts and…

1st Press Release

We have officially published our first Press Release. View more here .