Sub-bottom Profiling

Autonomous Subsurface Intelligence for Protecting Critical Infrastructure

Autonomous systems engineered to map the shallow subsurface with precision—revealing buried features, threats, and anomalies to safeguard national security interests and undersea infrastructure.

Undersea image of a long pipeline resting on the ocean floor with sunlight filtering through the water above.

Saildrone delivers high-quality sub-bottom profiling using long-endurance uncrewed surface vehicles equipped with advanced acoustic systems. By combining autonomous navigation with continuous subsurface imaging, Saildrone exposes sediment layers, buried objects, and infrastructure pathways—providing defense and security operators with the intelligence needed to protect vital maritime assets.

WHAT SAILDRONE DELIVERS

Mission-ready Solutions for Subsea Security and Threat Detection

Saildrone provides high-resolution acoustic characterization of the seabed and shallow subsurface, enabling defense and national-security partners to understand what lies beneath critical waterways and infrastructure corridors. Purpose-built for persistence, Saildrone Voyager delivers reliable subsurface intelligence even in contested or resource-constrained regions.

  • High-resolution imaging of sediment layers and shallow subsurface structure
  • Detection of buried objects, debris, and manmade infrastructure
  • Autonomous corridor mapping of pipelines, cables, and critical chokepoints
  • Wide-area subsurface coverage without crewed-asset risk
  • Continuous intelligence flow for security, engineering, and mission analysis

Whether protecting subsea infrastructure, screening for anomalies, or building domain awareness below the seafloor, Saildrone systems deliver actionable insights into the subsurface.

Autonomous saildrone with orange sail, Danish flag, and number 2015 floating on ocean under a partly cloudy sky.

SENSOR & DATA ARCHITECTURE

Integrated Acoustic Systems for Subsurface Intelligence

Saildrone Voyager carries an industry-standard sub-bottom profiling payload combining acoustic transducers, precision navigation, and onboard automation. These systems operate continuously to deliver clear subsurface imagery along priority routes and sensitive corridors.

Color-coded geophysical sonar scan showing ocean floor topography with layered sediment and rock formations.

Sub-bottom Profiler (SBP)

High-resolution acoustic penetration for mapping sediment layers, buried features, infrastructure pathways, and potential tampering indicators.

Positioning & Motion Reference

GNSS, inertial sensors, and real-time motion compensation ensure data fidelity in dynamic sea states without dependence on GPS.

Environmental Measurements

Temperature, salinity, and depth measurements support acoustic interpretation and situational understanding.

Autonomous Navigation

Pattern-of-life adherence, corridor mapping, and precision line-keeping without human steering.

Data Delivery

Encrypted transfer to the Saildrone Mission Portal or integration into your existing geospatial or subsurface-analysis workflow.

WHY SAILDRONE

Proven in Sensitive, High-value Maritime Regions

Endurance without refueling

The Saildrone Wing, in addition to augmenting propulsion systems, supports long-duration profiling missions that reduce crew exposure and extend operational reach.

Precision in challenging conditions

Voyager’s design enables stable acoustic acquisition in demanding sea states and congested maritime regions.

Access to constrained or sensitive areas

Saildrone USVs can safely survey infrastructure corridors, shallow approaches, and restricted waters unsuitable for large platforms.

Demonstrated regional impact

Saildrone conducted sub-bottom profiling in the Baltic Sea—including along portions of the Nord Stream pipeline corridor—as part of a demonstration of regional defense and infrastructure security capabilities.

RECENT MISSIONS

Demonstrated Performance in Real-world Surveys

Saildrone systems have executed sub-bottom profiling missions in the Baltic Sea, delivering accurate subsurface imagery to support maritime security, infrastructure assessment, and regional authorities—operating safely through harsh conditions and geopolitically sensitive waterways.

Cross-section of terrain with color gradient from blue and green to yellow and red highlighting elevation, with a spotlight beam on the yellow area and layered geological strata below.

Strengthen Subsea Infrastructure Security

Discover how Saildrone delivers high-quality subsurface intelligence to protect critical undersea assets, strengthen regional security, and reduce risk to crewed forces.