Author:
Jyothi Vandavasi Bala Naga,Ramesh Raju,Vedachalam Narayanaswamy,Ramadass Gidugu Ananda
Abstract
Abstract Precise navigation and positioning are key requirements for effective and safe operations of the deep-water human-occupied vehicles (HOVs) used for scientific exploration. This article presents the HOV real-time position determination methodology; technological maturity
of the Aided Inertial Navigation System (A-INS); likely position errors due to subsystem misalignments, acoustic positioning aid outages, importance of sound velocity profile in precise positioning by numerical modeling; and the reliability of the state-of-the-art A-INS configuration in the
HOV. It is identified that the A-INS comprising an internal measurement unit aided by Doppler Velocity Log, redundant depth sensors, and ultra-short‐baseline acoustic positioning systems with inbuilt communication capability shall have a “mean time to fail” period of ~6
years.
Publisher
Marine Technology Society
Subject
Ocean Engineering,Oceanography
Cited by
5 articles.
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