IQUA Robotics Tests SPARUS II AUV at REPMUS 26
The autonomous underwater vehicle demonstrated real-time mine detection and interoperability during the September exercise.
Updated on Oct. 26, 2026 in Robotics
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During the REPMUS 26 exercise held in Sesimbra, Portugal, from September 3 to 24, 2026, IQUA Robotics successfully deployed the SPARUS II autonomous underwater vehicle. The system demonstrated its ability to detect and identify underwater mines using advanced AI and multi-sensor technology.
Why it matters
The exercise serves as a critical evaluation of autonomous system performance and interoperability within naval mine countermeasures operations. By successfully identifying contacts and coordinating with external forces, the technology aims to improve the speed and accuracy of maritime defense missions.
The SPARUS II AUV utilized a Blueprint Subsea forward-looking sonar, a Norbit multibeam echosounder, and an IQUA optical camera system. The vehicle completed reacquisition missions in under 10 minutes, with an AI classifier labeling contacts in real time.
The players
IQUA Robotics
This robotics firm specializes in the development of autonomous underwater vehicles and marine survey technology.
US Navy
The maritime branch of the United States Armed Forces tasked with maintaining naval superiority and global security.
Swedish Armed Forces
The Swedish military organization responsible for national defense and the oversight of regional naval detection testing.
The details
The SPARUS II followed autonomous search patterns and dynamically replanned missions to inspect detected contacts using its onboard sensor suite. It also successfully demonstrated STANAG 4817 interoperability with the US Navy's CTG 68.3, marking a significant step in cooperative autonomous maritime operations.
Timeline
The REPMUS 26 exercise took place between September 3 and September 24, 2026.
The Tech Race
The integration of STANAG 4817 protocols demonstrates how autonomous systems are moving toward universal standards for naval interoperability. This represents a shift from proprietary silos to networked systems where diverse underwater vehicles can coordinate in real time.
The development of faster, autonomous mine-detection technology improves the safety of global maritime shipping lanes and critical undersea infrastructure. By reducing the reliance on human divers for high-risk inspection tasks, these systems increase the reliability of underwater communications networks.
The takeaway
Autonomous underwater vehicles are increasingly capable of performing high-stakes missions with minimal human intervention. Organizations looking to adopt these technologies should prioritize systems that strictly follow international interoperability standards to ensure seamless field integration.
Further reading
For more on the latest developments in maritime systems, see the Robotics section.
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