A proposed GMDSS module course for the Iranian maritime education and training system

The Global Maritime Distress and Safety System is in its transition period and will be -fully operational by 1999. It is inevitable and time is running by very fast, so it should be smoothly introduced in order to be able to fully implement it before the time comes. In fulfillment of this task one of the most important aspects is regarding the education and training of new personnel who can work with the new system. As the curricula of education and training of personnel working with the GMDSS system have been changed, the author proposes a complete set of General Operator’s Certificate (GOO course in this dissertation. The other relevant courses for GMDSS could also be developed from this proposal with slight changes, as the GOC embodies some other courses like Restricted Operator’s Certificate (ROC), or upgrading course for those who possess the Radio Telephony (R/T) certificate. The training institutes should be prepared for conducting such courses. This dissertation starts with a history of communication, to give the basis to the reader in better understanding the shortcomings of old communication systems to be able to follow the step by step development of the new GMDSS system. Following Chapters introduce the GMDSS and compare the new and old systems in qualification requirements aspect. The core of this dissertation is the proposal for the General Operator’s Certificate. Summing up the dissertation it is the author’s proposals to achieve the goal, which is Education and Training of the new personnel for the GMDSS syste

Investigation of L-band shipboard antennas for maritime satellite applications

A basic conceptual investigation of low cost L-band antenna subsystems for shipboard use was conducted by identifying the various pertinent design trade-offs and related performance characteristics peculiar to the civilian maritime application, and by comparing alternate approaches for their simplicity and general suitability. The study was not directed at a single specific proposal, but was intended to be parametric in nature. Antenna system concepts were to be investigated for a range of gain of 3 to 18 dB, with a value of about 10 dB considered as a baseline reference. As the primary source of potential complexity in shipboard antennas, which have beamwidths less than hemispherical as the beam pointing or selecting mechanism, major emphasis was directed at this aspect. Three categories of antenna system concepts were identified: (1) mechanically pointed, single-beam antennas; (2) fixed antennas with switched-beams; and (3) electronically-steered phased arrays. It is recommended that an L-band short backfire antenna subsystem, including a two-axis motor driven gimbal mount, and necessary single channel monopulse tracking receiver portions be developed for demonstration of performance and subsystem simplicity

Next Generation Auto-Identification and Traceability Technologies for Industry 5.0: A Methodology and Practical Use Case for the Shipbuilding Industry

[Abstract] Industry 5.0 follows the steps of the Industry 4.0 paradigm and seeks for revolutionizing the way industries operate. In fact, Industry 5.0 focuses on research and innovation to support industrial production sustainability and place the well-being of industrial workers at the center of the production process. Thus, Industry 5.0 relies on three pillars: it is human-centric, it encourages sustainability and it is aimed at developing resilience against disruptions. Such core aspects cannot be fully achieved without a transparent end-to-end human-centered traceability throughout the value chain. As a consequence, Auto-Identification (Auto-ID) technologies play a key role, since they are able to provide automated item recognition, positioning and tracking without human intervention or in cooperation with industrial operators. Although the most popular Auto-ID technologies provide a certain degree of security and productivity, there are still open challenges for future Industry 5.0 factories. This article analyzes and evaluates the Auto-ID landscape and delivers a holistic perspective and understanding of the most popular and the latest technologies, looking for solutions that cope with harsh, diverse and complex industrial scenarios. In addition, it describes a methodology for selecting Auto-ID technologies for Industry 5.0 factories. Such a methodology is applied to a specific use case of the shipbuilding industry that requires identifying the main components of a ship during its construction and repair. To validate the outcomes of the methodology, a practical evaluation of passive and active UHF RFID tags was performed in an Offshore Patrol Vessel (OPV) under construction, showing that a careful selection and evaluation of the tags enables product identification and tracking even in areas with a very high density of metallic objects. As a result, this article serves as a useful guide for industrial stakeholders, including future developers and managers that seek for deploying identification and traceability technologies in Industry 5.0 scenarios.This work was supported in part by the Auto-Identication for Intelligent Products Research Line of the Navantia-Universidade da Coruña Joint Research Unit under Grant IN853B-2018/02, and in part by the Centro de Investigación de Galicia ``CITIC,'' funded by Xunta de Galicia and the European Union (European Regional Development Fund-Galicia 2014_2020 Program) under Grant ED431G 2019/01Xunta de Galicia; IN853B-2018/02Xunta de Galicia; ED431G 2019/0

Cross Domain IW Threats to SOF Maritime Missions: Implications for U.S. SOF

As cyber vulnerabilities proliferate with the expansion of connected devices, wherein security is often forsaken for ease of use, Special Operations Forces (SOF) cannot escape the obvious, massive risk that they are assuming by incorporating emerging technologies into their toolkits. This is especially true in the maritime sector where SOF operates nearshore in littoral zones. As SOF—in support to the U.S. Navy— increasingly operate in these contested maritime environments, they will gradually encounter more hostile actors looking to exploit digital vulnerabilities. As such, this monograph comes at a perfect time as the world becomes more interconnected but also more vulnerable

Common carrier CATV: Technological, regulatory, and economic aspects

Electronic communication remained captive of wire for more than a half century before a technique could be found to set it free. A major breakthrough in electronic communication occurred in 1873 when James Clerk-Maxwell published A Treatise on Electricity & Magnetism in which he established the theory of electromagnetic energy, supported by mathematical proofs and based on observation of visible light. Within a decade experiments conducted by Heinrich Hertz which confirmed Maxwell’s concepts served as the scientific basis for the first radio transmissions. Radio telephone instruments were perfected by the inventor Guglielmo Marconi which stimulated experiments in similar areas of wireless transmission. By 1907 Lee de Forest had patented the vacuum-tube which set the stage for television broadcasting. Within two decades an entertainment information industry began to form around this new technology. Now, a half century later, radio and television stations have access to nearly every American family. Yet, in this time of spiraling scientific advances the broadcast industry faces a new challenge, not from a more complex mode of electronic signal dissemination, but from a system which has returned to wire to deliver its message. This is but one paradox in the maze or contradictions known as community antenna television (CATV)

Rapidly deployable, self forming, wireless networks for maritime interdiction operations

The term "Maritime Interdiction Operations" usually refers to Visit, Board, Search and Seizure (VBSS) operations executed today all over the world. These operations are conducted as a part of the maritime law enforcement policy of each country inside their respective territorial waters or as a part of the homeland security requirements as they are mandated today by the global war against terrorism. Very often lately, they are conducted by allied maritime forces in international waters as well. Although such operations might seem quite simple in execution, the global war against terrorism has dramatically increased their level of complexity. In the past, searching cargo ships for illegal or contraband cargo was not that complicated or that important for national security, but now, searching for non-proliferation, radiological or bio-chemical material, as well as for possible terrorists among the crew members of a ship, is a very complex operation that cannot tolerate mistakes or omissions. This thesis examines the requirements posed by a boarding team, either from the navy or the law enforcement community, on information flow from and to them, in order to enhance their situational awareness and decision making capability during Maritime Interdiction Operations. That information flow is provided by several wireless network technologies, implemented during field trials, as part of the NPS CENETIX (Center for Network Innovation and Experimentation) lab s maritime subset of experimentation. During these field trials, a wireless extension of the internet is deployed to the sea, allowing the boarding team to access information and collaborate with remotely located experts and respective operational commands, the technical aspects, the benefits and shortcomings of the utilized technologies and collaborative tools are screened against the maritime war fighter's operational requirements.http://archive.org/details/rapidlydeployabl109452647Approved for public release; distribution is unlimited

The Third Battle

Since the beginning of the twentieth century, submarines have been the weapon of choice for weaker naval powers that wish to contest a dominant power\u27s control of the seas or its ability to project power ashore from the sea. This is because submarines have been and are likely to remain the weapon system with the highest leverage in a battle for control of the ocean surface. Hence, antisubmarine warfare (ASW) will always re-main the most important element of the U.S. Navy\u27s core mission-sea control.https://digital-commons.usnwc.edu/usnwc-newport-papers/1017/thumbnail.jp