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The growing use of drones is creating new security challenges far beyond traditional battlefields. Ports, shipping lanes, offshore platforms, and commercial vessels are increasingly exposed to small aerial systems capable of conducting surveillance, disrupting operations, or threatening critical infrastructure. Detecting these drones at sea presents a unique challenge, as conventional radar systems often struggle with wave reflections, vessel motion, and constantly changing environmental conditions.
A new radar platform (IRIS OTM at Sea) has been developed (by Robin Radar Systems) specifically to address those conditions. Designed for operation on moving vessels, the system extends an existing mobile radar architecture into the maritime domain, allowing operators to detect, track, and classify drones while underway.
Unlike conventional fixed-site radar installations, the system is built around mobility. Originally developed for vehicles traveling at speeds above 100 kilometers per hour on land, the radar has now been adapted for maritime operations through software modifications that compensate for vessel movement, sea clutter, and coastal interference.
Sea clutter is one of the most difficult problems in maritime radar operations. Waves constantly generate reflections that can mask small aerial targets flying close to the water’s surface. According to Interesting Engineering, to overcome this, the radar uses updated processing algorithms designed to filter environmental noise and isolate drones operating at low altitudes.
The platform can reportedly function aboard vessels traveling at speeds of up to 54 knots while maintaining the ability to identify and classify airborne threats. The hardware has also been engineered for maritime environments, incorporating protection against salt exposure, corrosion, vibration, and electromagnetic interference.
A key advantage of the system is its ability to move with the asset it protects. Traditional radar coverage is often limited to fixed locations, whereas mobile sensing platforms can accompany vessels, patrols, and maritime operations as conditions change.
From a defense and security perspective, the technology addresses a growing need for counter-drone capabilities in maritime environments. Shipping routes, ports, naval operations, and offshore facilities increasingly face threats from small, unmanned aircraft that can approach from unexpected directions and operate close to the waterline.
The broader trend points toward mobile, software-defined sensing systems that can be updated as threats evolve. As drone activity expands into maritime domains, adaptable radar platforms capable of maintaining situational awareness in challenging conditions are likely to become an increasingly important component of coastal and maritime security architectures.
