Covert in Port and Precise at Sea: Drone Mitigation for Ports and Vessels with RF Cyber-Takeover

Maritime counter-UAS (C-UAS) requirements change as a vessel moves between operating environments.  A naval or coast guard vessel may move from open water to littoral waters and into a commercial port, often within the same mission, while the operational consequences of a drone incident change around it.

Visual detection is unreliable in open water or foggy conditions, limiting traditional approaches at sea. Closer to shore, the challenge becomes more complex: operators must address unauthorized drones amid commercial shipping, port activity and civilian communications, without disrupting the navigation, communications and other critical systems that vessels depend on.

For vessels operating near ports, coastlines and shipping routes, unauthorized drone activity can disrupt operations, gather intelligence or threaten safety. The question is not simply how to detect or neutralize a drone, but how to maintain control of the incident as the operating environment changes. 

When the Vessel Enters Port

Commercial ports and littoral environments bring vessels into close proximity with commercial shipping, port services, pilotage operations, emergency responders and civilian communications. In these settings, an unsuitable counter-UAS mitigation method can affect far more than the unauthorized drone itself.

For vessels operating in littoral waters, including bays, straits and canals, jamming can be problematic. These areas demand precise navigation capabilities, and jamming can be disruptive and interfere with navigation systems. The same applies in ports, where countermeasures should not affect other vessels or critical port activity.

Kinetic mitigation presents a separate concern. In confined or sensitive maritime environments, a falling drone, debris or an unintended impact can affect nearby vessels, people or infrastructure. Laser-based and high-power microwave systems can raise similar collateral-damage concerns. RF jamming can further interfere with onboard communications and sensors, and may allow a drone to return to its pilot. 

For ports and vessels, operators may require controlled drone mitigation that limits interference and collateral damage while allowing critical activity to continue.

The “Invisible Eye”: Intelligence Before Intervention

The “Invisible Eye” is not simply about knowing that a drone is present. It is about giving maritime operators the understanding needed to make an informed response while preserving the communications and operations around them.

D-Fend Solutions’ EnforceAir uses RF-cyber technology to detect, locate and identify unauthorized drones and their operators. By analyzing the radio frequency (RF) communications exchanged between a drone and its controller, it can identify specific drone models and help pinpoint the operator or take-off location, providing the context operators need before deciding how to mitigate the incident. 

Unlike active systems that transmit signals to detect objects, RF-cyber technology operates passively, analyzing existing RF activity. This approach is non-disruptive to other communication systems and helps preserve the communications, navigation and sensor systems vessels rely on during an incident.

Surgical RF Cyber-Takeover

Knowing what the drone is and where its operator is located gives maritime teams a better basis for deciding how to respond. But in ports, harbors and other sensitive environments, the response itself must be as controlled as the intelligence that informs it. 

D-Fend’s RF cyber-takeover approach enables authorized operators to assume control of an unauthorized drone and guide it along a safe route to a predefined safe zone. This provides a controlled outcome without causing interference to surrounding systems.

The approach is non-kinetic and non-disruptive. Instead of relying on broad-spectrum jamming or kinetic force, operators can mitigate an unauthorized drone while helping preserve communications, navigation and the operational capability required to continue the mission.  

That distinction matters in congested harbors and other sensitive maritime environments, where a response must account for nearby vessels, people and infrastructure as well as the drone itself. 

EnforceAir can operate in noisy and sensitive environments and handle multiple drones simultaneously, important capabilities when a drone incident unfolds amid complex maritime activity.

Extending C-UAS from Port to Open Water

Maritime C-UAS requirements extend beyond port security. Naval vessels, merchant ships, ports, harbors and coastal infrastructure operate across open-sea, near-shore and littoral environments, each with different operational conditions and requirements. An effective approach to drone mitigation for ports and vessels must scale with the platform and the mission and withstand maritime conditions without compromising the systems vessels rely on to operate safely and effectively.

D-Fend Solutions’ EnforceAir2 Maritime version is designed for challenging open-sea and near-shore operations. Complying with MIL-STD-810H Maritime specifications and proven at Technology Readiness Level 9 (TRL 9) through successful mission operations, it is ruggedized for open-water conditions.

Its maritime configuration incorporates corrosion-resistant materials, sealing and dedicated maritime connectors to support reliable deployment on vessels and at coastal sites exposed to saltwater and demanding environmental conditions.

Compact, low-power and requiring no cooling, the system can be fitted to small naval and merchant vessels and scaled for larger platforms and more complex upper-deck superstructures.

That flexibility enables maritime teams to apply a consistent, non-disruptive counter-UAS approach as the operating environment changes from port to near shore and out to open water. 

EnforceAir2 Maritime can integrate through an open API with command-and-control and complementary detection and mitigation systems as part of a multilayer maritime domain awareness approach This enables the system to support wider maritime and naval defense architectures when an integrated approach is required. 

A Maritime Approach Built Around Continuity

A vessel operating offshore faces different considerations from one entering a commercial port. Port and coastal-security teams must account for nearby vessels, navigation systems, communications, and civilian activity. The method used to address an unauthorized drone must therefore fit the environment in which the incident occurs.

For naval and coast guard forces, the test is not simply whether a maritime C-UAS system can respond to an unauthorized drone. It is whether it can maintain control across the full range of maritime conditions, without compromising the navigation, communications and operational capability the mission depends on.

FAQ