Building a Danish Drone Shield - Bionic System Solutions

The future of Denmark’s drone shield will be based on sensor fusion, integrating acoustic, optical, and RF technologies.

Following a series of drone sightings over Danish airports and military installations in autumn 2025, the Danish Defence Command published an assessment of the overall incident response.

This has led to the establishment of a dedicated counter-drone programme aimed at protecting civil society and critical infrastructure through a broad, layered defence architecture combining radar, optical, radiofrequency and acoustic sensing technologies.

A Combined C-UAS Capability

Experience from Ukraine has shown that effective drone detection cannot depend on a single technological solution. Instead, it necessitates a layered sensor network where various capabilities work together to establish a comprehensive security system.

A resilient C-UAS capability therefore depends on the integration of radar, visual, radiofrequency and acoustic sensors. By combining multiple detection methods and sensor feeds, authorities can build a more accurate operational picture while eliminating the risk of blind spots.

Invisible Drones

The importance of sensor integration can be illustrated by a scenario involving a low-flying, AI-powered drone operating behind dense tree cover.

The drone’s low altitude places it below the detection range of conventional radar systems, while the tree cover conceals it from optical cameras. In addition to this, the drone’s internal navigation eliminates the need for an operator connection, meaning the drone emits little or no radio-frequency signature for RF sensors to detect.

In this situation, acoustic sensors provide a critical additional layer of protection by detecting the distinctive sound signatures produced by drone motors and rotors. Unlike light or radio signals, sound waves can propagate around obstacles, allowing acoustic systems to detect threats hidden from other sensors.

These acoustic detections can then be used to cue cameras or alert security personnel, providing an accurate location estimate of the drone. If the drone later rises above the treeline, optical systems can already be directed towards the target and ready to track it before it becomes visible.

For critical infrastructure, including civilian airports, energy facilities and military installations, this sensor synergy ensures that authorities can detect, identify and respond to drone threats based on a verified and continuously updated situational picture.

Danish Solutions

Denmark already has access to technologies capable of detecting and countering drones, several of which are being adopted by international partners. One example is the Funen-based technology company BSS ApS, which provides advanced acoustic sensor solutions for drone detection, identification and localisation.

BSS’ C-UAS technology is designed to operate as part of integrated sensor networks, supporting the layered approach outlined in the Danish Defence Command’s counter-drone programme. It can therefore contribute directly to strengthening situational awareness for both civilian and military emergency responses.

The future of Denmark’s drone shield will be based on sensor fusion, integrating acoustic, optical, and RF technologies.

Following a series of drone sightings over Danish airports and military installations in autumn 2025, the Danish Defence Command published an assessment of the overall incident response.

This has led to the establishment of a dedicated counter-drone programme aimed at protecting civil society and critical infrastructure through a broad, layered defence architecture combining radar, optical, radiofrequency and acoustic sensing technologies.

A Combined C-UAS Capability

Experience from Ukraine has shown that effective drone detection cannot depend on a single technological solution. Instead, it necessitates a layered sensor network where various capabilities work together to establish a comprehensive security system.

A resilient C-UAS capability therefore depends on the integration of radar, visual, radiofrequency and acoustic sensors. By combining multiple detection methods and sensor feeds, authorities can build a more accurate operational picture while eliminating the risk of blind spots.

Invisible Drones

The importance of sensor integration can be illustrated by a scenario involving a low-flying, AI-powered drone operating behind dense tree cover.

The drone’s low altitude places it below the detection range of conventional radar systems, while the tree cover conceals it from optical cameras. In addition to this, the drone’s internal navigation eliminates the need for an operator connection, meaning the drone emits little or no radio-frequency signature for RF sensors to detect.

In this situation, acoustic sensors provide a critical additional layer of protection by detecting the distinctive sound signatures produced by drone motors and rotors. Unlike light or radio signals, sound waves can propagate around obstacles, allowing acoustic systems to detect threats hidden from other sensors.

These acoustic detections can then be used to cue cameras or alert security personnel, providing an accurate location estimate of the drone. If the drone later rises above the treeline, optical systems can already be directed towards the target and ready to track it before it becomes visible.

For critical infrastructure, including civilian airports, energy facilities and military installations, this sensor synergy ensures that authorities can detect, identify and respond to drone threats based on a verified and continuously updated situational picture.

Danish Solutions

Denmark already has access to technologies capable of detecting and countering drones, several of which are being adopted by international partners. One example is the Funen-based technology company BSS ApS, which provides advanced acoustic sensor solutions for drone detection, identification and localisation.

BSS’ C-UAS technology is designed to operate as part of integrated sensor networks, supporting the layered approach outlined in the Danish Defence Command’s counter-drone programme. It can therefore contribute directly to strengthening situational awareness for both civilian and military emergency responses.

The future of Denmark’s drone shield will be based on sensor fusion, integrating acoustic, optical, and RF technologies.

Following a series of drone sightings over Danish airports and military installations in autumn 2025, the Danish Defence Command published an assessment of the overall incident response.

This has led to the establishment of a dedicated counter-drone programme aimed at protecting civil society and critical infrastructure through a broad, layered defence architecture combining radar, optical, radiofrequency and acoustic sensing technologies.

A Combined C-UAS Capability

Experience from Ukraine has shown that effective drone detection cannot depend on a single technological solution. Instead, it necessitates a layered sensor network where various capabilities work together to establish a comprehensive security system.

A resilient C-UAS capability therefore depends on the integration of radar, visual, radiofrequency and acoustic sensors. By combining multiple detection methods and sensor feeds, authorities can build a more accurate operational picture while eliminating the risk of blind spots.

Invisible Drones

The importance of sensor integration can be illustrated by a scenario involving a low-flying, AI-powered drone operating behind dense tree cover.

The drone’s low altitude places it below the detection range of conventional radar systems, while the tree cover conceals it from optical cameras. In addition to this, the drone’s internal navigation eliminates the need for an operator connection, meaning the drone emits little or no radio-frequency signature for RF sensors to detect.

In this situation, acoustic sensors provide a critical additional layer of protection by detecting the distinctive sound signatures produced by drone motors and rotors. Unlike light or radio signals, sound waves can propagate around obstacles, allowing acoustic systems to detect threats hidden from other sensors.

These acoustic detections can then be used to cue cameras or alert security personnel, providing an accurate location estimate of the drone. If the drone later rises above the treeline, optical systems can already be directed towards the target and ready to track it before it becomes visible.

For critical infrastructure, including civilian airports, energy facilities and military installations, this sensor synergy ensures that authorities can detect, identify and respond to drone threats based on a verified and continuously updated situational picture.

Danish Solutions

Denmark already has access to technologies capable of detecting and countering drones, several of which are being adopted by international partners. One example is the Funen-based technology company BSS ApS, which provides advanced acoustic sensor solutions for drone detection, identification and localisation.

BSS’ C-UAS technology is designed to operate as part of integrated sensor networks, supporting the layered approach outlined in the Danish Defence Command’s counter-drone programme. It can therefore contribute directly to strengthening situational awareness for both civilian and military emergency responses.