Global Navigation Satellite System for Maritime Applications

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Ocean Engineering".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1170

Special Issue Editors


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Guest Editor
Faculty of Maritime Studies and Transport, University of Ljubljana, 6320 Portorož, Slovenia
Interests: GNSS; navigation; satellite positioning

Special Issue Information

Dear Colleagues,

Navigating the vast and ever-changing seas has been a critical challenge for mariners since ancient times. The advent of the Global Navigation Satellite System (GNSS) has revolutionized maritime navigation, providing seafarers with unprecedented accuracy, reliability, and global coverage. GNSSs encompass a constellation of satellites emitting signals that enable the precise determination of position, velocity, and time with for users across the globe, thus supporting the resilient Position, Navigating and Timing (PNT) global availability.

The use of GNSSs in maritime applications extends beyond simple navigation to a multitude of critical operations, including search and rescue, secure cargo tracking, authenticated fisheries management, and the enforcement of maritime boundaries. The integration of GNSS technology has become indispensable in modern maritime practices, offering a quantum leap from traditional navigation methods such as celestial navigation and dead reckoning.

This Special Issue delves into the specific applications of GNSSs in the maritime industry, including the development of autonomous vessels, which rely heavily on accurate and high integrity positioning; the enhancement of maritime safety; the facilitation of efficient maritime transport; and the support of sustainable marine environmental practices.

Prof. Dr. Salvatore Gaglione
Dr. Franc Dimc
Guest Editors

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Keywords

  • GNSS
  • safety of navigation
  • autonomous vessels
  • reliable positioning
  • high-integrity positioning
  • sustainable navigation

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Published Papers (1 paper)

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Research

14 pages, 8196 KiB  
Article
Pitching Stabilization Control for Super Large Ships Based on Double Nonlinear Positive Feedback under Rough Sea Conditions
by Chunyu Song, Qi Qiao and Jianghua Sui
J. Mar. Sci. Eng. 2024, 12(9), 1657; https://doi.org/10.3390/jmse12091657 - 16 Sep 2024
Viewed by 570
Abstract
Due to the rapid development of a global navigation satellite system and the rapid growth of ships, the traditional control algorithms are not suitable; hence, the longitudinal rocking phenomenon generated by external disturbances is more serious when a ship is sailing. This paper [...] Read more.
Due to the rapid development of a global navigation satellite system and the rapid growth of ships, the traditional control algorithms are not suitable; hence, the longitudinal rocking phenomenon generated by external disturbances is more serious when a ship is sailing. This paper takes a mathematical model of the super large oil tanker “KVLCC2”’s longitudinal motion as the controlled plant, establishing a multi-input multi-output instability control system, using the root trajectory shaping method and a weighting matrix to ensure the stability of its transfer function’s mathematical model. An improved closed-loop gain-shaping algorithm is utilized to design a simple robust controller. And a dual nonlinear positive feedback control algorithm is added to the control system to further improve the controller’s pitching stabilization performance and reduce the controller’s output energy. In order to verify that the controller has a consistently strong robustness, simulation experiments are carried out by adding a level 6, 7 and 8 wind wave model and a perturbation link to the control system, respectively. The results show that when the value of the hysteresis constant is taken as 0.25, the output values of the heave displacement and the pitch angle are greatly reduced, and the longitudinal rocking phenomenon is significantly improved. The dual nonlinear positive feedback control algorithm enhances the ship’s pitching stabilization control capability and further reduces the controller’s output energy, which provides technical support for the smooth and efficient sailing of super large ships under changing sea conditions. Combined with a global navigation satellite system, this algorithm provides a new method for pitching stabilization control of super large ships. Full article
(This article belongs to the Special Issue Global Navigation Satellite System for Maritime Applications)
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