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Machine learning post processing of underwater vehicle pressure sensor array for speed measurement


Ariza Ramirez, W and Leong, ZQ and Nguyen, HD and Jayasinghe, SG, Machine learning post processing of underwater vehicle pressure sensor array for speed measurement, Ocean Engineering, 213 Article 107771. ISSN 0029-8018 (2020) [Refereed Article]

Copyright Statement

2020 Elsevier Ltd. All rights reserved

DOI: doi:10.1016/j.oceaneng.2020.107771


An array of pressure sensors can be used to correct the drift in inertial navigation systems for underwater vehicles (UVs) in absence of other navigation support systems such as acoustic positioning, GPS and Doppler velocity measurements. To date, multiple pressure sensor arrays have been designed, proposed, and tested to prove the concept. However, it has not been researched the inclusion of non-linearities is required in the post-processing. This paper focuses on the use of machine learning as a novel approach to improve the post-processing accuracy, including non-linearities caused by the vehicle acceleration on the estimated speed compared to the linear parametric equation methodology. A series of towing tank experiments have been conducted over an array of pressure sensors located on an UV platform. The results show that pressure measurement array requires the use of non-linear post-processing methodologies as linear methodologies are not able to accurately account for vehicle acceleration effects.

Item Details

Item Type:Refereed Article
Keywords:underwater vehicle, machine learning, pressure sensor
Research Division:Engineering
Research Group:Control engineering, mechatronics and robotics
Research Field:Autonomous vehicle systems
Objective Division:Transport
Objective Group:Water transport
Objective Field:Autonomous water vehicles
UTAS Author:Ariza Ramirez, W (Mr Wilmer Ariza Ramirez)
UTAS Author:Leong, ZQ (Dr Zhi Leong)
UTAS Author:Nguyen, HD (Dr Hung Nguyen)
UTAS Author:Jayasinghe, SG (Dr Shantha Jayasinghe Arachchillage)
ID Code:145412
Year Published:2020
Web of Science® Times Cited:1
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2021-07-20
Last Modified:2021-09-16

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