Accurate Subsea Navigation Vital for ROV in Deep Ocean Research - 08/03/2021 Pelagic Research Services was looking to improve the accuracy of the subsea navigation systems on its remotely operated vehicle. Find out how an accurate and high-performing Doppler velocity log paired with an inertial navigation system enabled smooth operation in tricky conditions near hydrothermal vents in the deep ocean. Pelagic Research Services, based in Cape Cod, has been carving out a niche in the remotely operated vehicle (ROV) market with its versatile Odysseus vehicle, which can carry out a wide variety of duties despite its small footprint. The ROV is capable of providing real-time HD imagery, lifting loads of up to 4,000lb (1,814kg, in-air weight) and using seven-function manipulators to carry out precise work in water depths down to 6,000m.