FarSounder’s sonar tech supports navigation of US DARPA’s NOMARS USV

FarSounder’s Argos 3D forward looking sonar (FLS) has been integrated into the navigation system of US DARPA’s newly completed No Manning Required Ship (NOMARS) unmanned surface vessel (USV).

As part of this innovative program, FarSounder’s Argos FLS was integrated into the vessel’s navigation suite to enhance situational awareness and support the ship’s real-time obstacle avoidance capabilities. This integration reflects FarSounder’s increasing presence within the autonomous and unmanned sector.

The project is the development of Defiant—a first-of-its-kind unmanned surface vessel designed to operate autonomously for extended durations at sea without any onboard crew. DARPA completed the first test of at-sea refueling designed for use with USV Defiant in December last year.

The Defiant, a 54.8-meter, 240-metric-ton vessel, completed construction in early 2025 and is now undergoing in-water and at-sea testing. Its successful deployment marks a significant milestone in autonomous naval operations. The USV was launched in March this year.

“This program represents a major step forward in the evolution of unmanned maritime systems,” said Matthew Zimmerman, CEO and Co-Founder of FarSounder.

“We’re honored to contribute our technology to an effort that pushes the boundaries of ship design and operational autonomy.”

FarSounder plans to expand its footprint in the unmanned and autonomous vessel sector. With over two decades of expertise in real-time 3D navigation, its forward looking sonar systems are increasingly being selected by defense, commercial, and research initiatives.

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