The MRU of choice for Fishery Sonars
Fishing vessels depend on high-quality sonar data for everything from seabed mapping and bottom trawl navigation to fish finding and biomass assessment. Yet the motion compensation sensor is often the weakest link in an otherwise expensive sonar package. Norwegian Subsea MRUs deliver the accurate, real-time roll, pitch, and heave compensation that fishing vessel sonar systems depend on, without requiring RTK or GNSS coverage, critical for vessels operating far offshore.
The MRU of choice for Fishery Sonars
Why Motion Compensation Matters for Fishery Sonars
Fishing vessels operate in some of the most demanding sea conditions, often smaller hulls, rougher seas, and greater vessel motion than larger ships, making accurate motion compensation even more critical. Without it, multibeam sonar returns are distorted by roll, pitch, and heave, leading to unreliable seabed data, gaps in fish biomass detection, and degraded performance from omni-directional fish finding sonars.
Many fishing vessels invest heavily in high-end sonar packages but pair them with motion sensors that cannot keep up in irregular, multi-directional seas, a classic "garbage in, garbage out" problem. Fishing vessels also routinely operate beyond RTK and GNSS correction coverage, exactly where many competing sensors struggle most with heave accuracy. Norwegian Subsea MRUs are specifically validated in real, irregular sea conditions and deliver consistent heave performance without any dependency on external correction signals. A key reason WASSP, one of the world's leading multibeam sonar manufacturers serving the commercial fishing industry, has integrated Norwegian Subsea MRUs as their premium motion compensation option.
