SEABER’s MARVEL 3DSS AUV for Beach Reconnaissance: A Technological Breakthrough for Naval Amphibious Operations

SEABER has achieved a significant milestone with the successful integration of a next-generation interferometric 3D side-scan sonar (3DSS) into its MARVEL micro-AUV, marking the first global deployment of this advanced technology on such a platform. Utilizing patented CAATI technology, the 3DSS provides high-resolution 2D imagery, true 3D seabed reconstruction, and centimetric-scale bathymetry from a compact system. In operational tests, the MARVEL-3DSS efficiently mapped a 300 × 150-meter beach approach zone in under 30 minutes, achieving speeds up to ten times faster than traditional methods while maintaining a minimal acoustic signature and eliminating the need for specialized personnel. This innovation significantly enhances the amphibious beach reconnaissance capabilities for naval forces, special operations units, and mine countermeasure teams, particularly in contested littoral environments.