| Autor: |
Narayanaswamy Vedachalam, R. Ramesh, V. B. N. Jyothi, Gidugu Ananda Ramadass |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Marine Technology Society Journal. 55:129-137 |
| ISSN: |
0025-3324 |
| DOI: |
10.4031/mtsj.55.5.4 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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