Ramses is an acoustic synthetic baseline positioning system designed to simplify Long Baseline (LBL) and sparse LBL subsea navigation. Operating as an intelligent transceiver, it integrates tightly with Inertial Navigation Systems (INS) to deliver precise and robust positioning with significantly fewer seabed transponders than traditional LBL solutions. By combining acoustic ranging with embedded processing and advanced filtering, the system provides accurate navigation data with low latency, supporting reliable performance in complex subsea environments.
Built with a fully embedded architecture, Ramses enables direct data fusion with inertial systems, ensuring precise time alignment and consistent positioning output without the need for topside processing. The system supports both sparse LBL and full LBL modes, allowing flexible deployment depending on the number of available transponders, and includes SLAM capability for adaptive array configuration. With integrated environmental sensors, acoustic communication functionality, and compatibility with broader navigation and supervision systems, Ramses provides a scalable and efficient solution for subsea positioning in applications such as ROV and AUV operations, offshore construction, and survey.
Specifications:
| Depth rating: | 4,000 m |
| Precision (mm): | < 10 |
| Transducer beam shape: | Omnidirectional |
| Acoustic communication: | 500 bps / 8kbps |
| Data logging (Gb): | 32 |






