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Tytuł:
Navigational Trip: Safety, Security, and Protection as Compliance to Interntional Standard
Autorzy:
Alimen, R. A.
Galve, R. M.
Francisco, S. F.
Mongan, C. I.
Powiązania:
https://bibliotekanauki.pl/articles/117207.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
navigational trip
safety at sea
ship security
Maritime Education and Training (MET)
MET System in the Philippines
interntional standards
Standard Operating Procedures (SOP)
Ship-Board Training Officer (SBTO)
Opis:
This study was determined the evaluation of the safety, security, and protection of the navigational trip in terms of safety among marine engineering students as an entire group and when they were classified according to section such as Polaris 3-A, Polaris 3-B, and Polaris 3-C. Respondents of the study were the one hundred twenty (120) Polaris marine engineering students who are currently enrolled in the College of Maritime Education of JBLFMU-Molo for School Year 2017-2018 who were on board or have undertaken the navigational trip and have observed some of the safety and security services on board. The researchers employed quantitative-qualitative research design by Creswell (2013) to determine the navigational trip and observations of the safety and security services on board. Results revealed that the respondents had “excellent evaluation” about the safety, protection, and security of the navigational trip vessel. There were no significant differences in the evaluation of the respondents as to the different sections; no relationships were observed when the respondents’ evaluation results were compared according to sections. The observations and comments cited in this study signify that the navigational trip vessel exhibited safety and security, maintain clean and safe environment, and followed the strict implementation of safety as prescribed by the international standards. The respondents’ comments attested that the navigational ship has implemented the international standard of safety and procedure on board.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 533-538
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vision of the Decision Support Model on Board of the Vessel with Use of the Shore Based IT Tools
Autorzy:
Bibik, L.
Krolikowski, A.
Czaplewski, K.
Duda, D.
Powiązania:
https://bibliotekanauki.pl/articles/117203.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
e-Navigation
Decision Support Model
Information Technology (IT)
Shore Based IT Tools
Maritime Safety and Security Information Exchange System (MarSSIES)
Maritime Safety
communication technology
Opis:
The Maritime Safety Committee (MSC) at its 81st session decided to include, in the work programmes of the NAV and COMSAR Sub-Committees, a high priority item on "Development of an e–navigation strategy”. E-navigation is meant to integrate existing and new electronic navigational tools (ship and shore based) into one comprehensive system that will contribute to enhanced navigational safety and security while reducing the workload of the mariner (navigator). This paper describes present IT created to support navigational and administrative activities related to vessel movement and cargo transhipment. Direction of development of existing systems is drafted with reference to E-Navigation concept. Information sets available for the vessel in Polish Sea Areas are grouped.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 3; 255-258
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of the master in improving safety culture onboard ships
Autorzy:
Bielić, T.
Predovan, D.
Čulin, J.
Powiązania:
https://bibliotekanauki.pl/articles/116440.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety culture
role of master
safety culture onboard ships
safety at sea
ISM Code
maritime safety culture
Safety Management System (SMS)
Bridge Resource Management
Opis:
As a complex socio-technical system marine transportation is open to risks. Due to the efforts of international organisations, flag and port administrations, classification societies and ship-owners the safety record has steadily improved. However, marine accidents resulting from inadequate safety culture still occur. In this paper examples of recent accidents related to different dimensions of safety culture are provided. The role of the master in achieving an enhanced safety is emphasised.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 121-124
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling the accident probability in large-scale, maritime transportation system
Autorzy:
Blokus-Roszkowska, A.
Montewka, J.
Smolarek, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069467.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
maritime transportation system
safety
collision probability
traffic simulation
semi-Markov model
Opis:
The probability of an accident in transportation systems can serve as a measure of these systems safety or risk, depending on the objective. Therefore numerous methods and models for risk evaluation, with respect to maritime, have been developed. However, these models are either too simplified, allowing relatively fast analysis but very often missing the substantial links among the model variables, or they are too slow for effective analysis, due to computational complexity, not necessarily being backed-up with the complexity of the model itself. Thereby, this paper introduces a novel method evaluating the probability of ship-ship collision in the maritime transportation system focusing on the open sea collisions, applying the queuing theory in the simulation model. The model allows relatively fast prediction as it focuses on the specific events (e.g. accidents), instead of simulating the whole traffic. To support this hypothesis a case study is presented focusing on a selected element of transportation system in operation.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 2; 237--244
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessing safety effects of digitization with the European Maritime Simulator Network EMSN: the sea traffic management case
Autorzy:
Burmeister, H. C.
Scheidweiler, T.
Reimann, M.
Jahn, C.
Powiązania:
https://bibliotekanauki.pl/articles/116900.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine traffic
European Maritime Simulator Network (EMSN)
Sea Traffic Management (STM)
Sea Traffic
traffic management system
traffic management
data-tracker
maritime safety index
Opis:
This paper will give an intro into the technical backbone of the EMSN and derive necessary specifications to allow for objective testing in large scale. Further, it will demonstrate the potential of EMSN as a maritime safety test-bed on the STM case. Therefore, the simulations executed within the EMSN are evaluated regarding their safety level in order to demonstrate the effects of various measures to improve safety. Based on a fuzzy logic approach, numerical Data from the EMSN Data-Tracker is used as an input to assess a present traffic situation from the perspective of a specific ship and outputs a comprehensive safety index developed by expert opinions. The safety index is used to further analyze navigators’ behavior and decisions in different maritime traffic scenarios that are executed within the EMSN.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 91-96
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration model of management systems in Sea Transport
Autorzy:
Chruzik, K.
Powiązania:
https://bibliotekanauki.pl/articles/117090.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Sea Transport
management system
Safety Management System (SMS)
Quality Management and Environmental Management System
maritime transport
ISO
Designated Person Ashore (DPA)
ISM Code
Opis:
Dynamically implemented mandatory management systems resulting from legal requirements in maritime transport since 2006 [1-3], very often (especially in the first years of implementing the requirements) functioned independently by the optional procedural approach - ISO [4-5]. It is now common practice to integrate requirements in both - the mandatory and voluntary areas. Legal requirements and recommendations do not define and recommend a specific form of extending existing management systems. The publication describes the relationship between the requirements for the management systems currently applicable in maritime transport resulting from legal requirements (Safety Management System - SMS) and voluntary implementations (Quality Management and Environmental Management System). The common areas identified for the analysis of system requirements (for obligatory and optional systems) will facilitate the integration and broadening of the management culture in maritime transport organizations.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 393-396
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
National Systems of Safety and Protection of Navigation
Narodowy System Bezpieczeństwa i Ochrony Żeglugi
Autorzy:
Czaplewski, K.
Kopacz, Z.
Morgaś, W.
Powiązania:
https://bibliotekanauki.pl/articles/359229.pdf
Data publikacji:
2010
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
System Bezpieczeństwa Morskiego i Ochrony Żeglugi
Narodowe Systemy Bezpieczeństwa i Ochrony Żeglugi
Maritime Safety and Security System
National Maritime Safety and Security Systems
Opis:
In this paper, an attempt has been made to present National Maritime Safety and Security Systems. Such systems have been established as a result of close cooperation of national maritime services and ships themselves. Such systems operate in national maritime areas of particular states, regardless of EU membership. The history of the development of above mentioned systems is much longer than the history of the International Maritime Safety and Security System. However, the organizational and functional structure of these systems has been scarcely presented in the shipping literature . Therefore, the main objective of this paper is to bring these issues closer to the public attention.
W artykule podjęto próbę przedstawienia Narodowych Systemów Bezpieczeństwa Morskiego i Ochrony Żeglugi. Systemy te są wynikiem skoordynowanego funkcjonowania służb morskich państw oraz załóg okrętów. Tego rodzaju systemy funkcjonują na obszarach morskich państw, bez względu na to, czy są one członkami Unii Europejskiej czy też nie. Wspomniane systemy mają nieporównanie dłuższą historię niż Międzynarodowy System Bezpieczeństwa Morskiego i Ochrony Żeglugi. Niemniej jednak historia ich rozwoju, a zwłaszcza struktura organizacyjno-funkcjonalna, nie znalazła prawie żadnego odzwierciedlenia w literaturze przedmiotu. Dlatego też głównym założeniem artykułu jest wyeliminowanie podstawowych zaniedbań w tym względzie.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 21 (93); 40-45
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maritime Transportation System Safety – Modeling and Identification
Autorzy:
Dziula, P.
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/116563.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
maritime transportation
safety system
Opis:
The article is showing a concept of critical infrastructure systems’ safety states model. Model construction is basing on: popular technical systems’ safety states models, and notions specified in acts of law and other studies concerning crisis management. Paper is including some concept of proposed model usage possibilities ‐ methods and procedures for estimating unknown basic parameters of safety states transitions process: identifying the distributions of its conditional lifetime at safety states, estimating probabilities of its staying at safety states at the initial moment, probabilities of its transitions between safety states and parameters of the distribution for the description of its conditional lifetimes at safety states.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 169-175
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human error in pilotage operations
Autorzy:
Ernstsen, J.
Nazir, S.
Powiązania:
https://bibliotekanauki.pl/articles/117463.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
human error
Systematic Human Error Reduction and Prediction Approach (SHERPA)
pilotage operations
sociotechnical system
maritime domain
Hierarchical Task Analysis (HTA)
safety climate
Opis:
Pilotage operations require close interaction between human and machines. This complex sociotechnical system is necessary to safely and efficiently maneuver a vessel in constrained waters. A sociotechnical system consists of interdependent human- and technical variables that continuously must work together to be successful. This complexity is prone to errors, and statistics show that most these errors in the maritime domain are due to human components in the system (80 ? 85%). This explains the attention on research to reduce human errors. The current study deployed a systematic human error reduction and prediction approach (SHERPA) to shed light on error types and error remedies apparent in pilotage operations. Data was collected using interviews and observation. Hierarchical task analysis was performed and 55 tasks were analyzed using SHERPA. Findings suggests that communication and action omission errors are most prone to human errors in pilotage operations. Practical and theoretical implications of the results are discussed.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 49-56
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Information flow in maritime safety management systems
Autorzy:
Graboń-Chałupczak, M.
Powiązania:
https://bibliotekanauki.pl/articles/1841597.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
International Safety Management
ISM Code
Safety Management System
SMS
information flow
Maritime Safety Management System
Management of Safe Ship Operations
Pollution Prevention
Safety at Sea
Opis:
The priority of the maritime transport operation is a high level of security, which must be constantly monitored by shipowners with a security management system. The origin of the International Code for the Management of Safe Ship Operations and Pollution Prevention and the revised guidelines for the administration of the ISM Code by administrations, the first formal mandatory standard for safety management and pollution prevention goes back to the early 1980s. Arrangement of safe ship management and operation and consequent minimization of errors human being by far the most common cause of marine disasters is its main. The shipowner's and ship's certification procedure for the Safety Management System (SMS) is in line with Regulation (EC) No 336/2006 [1] of the European Parliament and the Council of Europe of 15 February 2006 on the implementation of the ISM Code in the Community, together with the Commission's amendment European Union of June 16, 2008. The documentation contains a developed Safety Management System adapted to the conditions of a given shipowner. All elements of the system must be documented, and, above all, the duties must be described in the organizational structures. Documentation must indicate how management supervises activities at various levels, employee participation and individual management representatives in individual processes, and how the safety management system is constantly improved. The shipowner maintains a security management system in line with the requirements of the Code and complies with the requirements of the certification system. The amount of information and the speed of changes taking place in the environment makes it necessary to introduce a system of information management and channels of their flow not only within the organization, but also in communication with third parties. Proper management of information resources increases the efficiency and effectiveness of the system. In the publication, the possibility of a formalized description of information flow in a well-functioning shipowner's safety management system.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 637-640
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of ship manoeuvring safety in waterway systems by relative navigational risk
Autorzy:
Gucma, Stanisław
Ślączka, Wojciech
Bąk, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/11236576.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
sea waterway system
navigational risk
maritime safety
waterways
system morskich dróg wodnych
ryzyko nawigacyjne
bezpieczeństwo żeglugi morskiej
drogi wodne
Opis:
The safety of vessels navigating in the sea waterway system is ensured by fulfilling the acceptable restrictions called safe ship operation conditions in that system. The assessment of navigation safety is particularly important when the conditions for safe operation of ships in the waterway system are changed concerns increasing the maximum parameters of vessels, increasing the allowable hydrometeorological conditions or changing the minimum tug assistance. The article presents a method for assessing navigation safety when the conditions for the safe operation of vessels in the waterway system get changed. The method uses two indicators, which are difference in navigation risks and relative navigation risk. To determine the navigational risk, algorithms were developed for calculating the probability of accidents caused by the deterioration of navigation conditions and technical failure of ship equipment and tugs. Another algorithm was developed for calculating the consequences of the accidents that involve blocking a waterway by a ship anchoring in an emergency, grounding, impact of the ship against a port structure or moored ship and a collision with another ship in motion. The method developed for assessing navigation safety by means of relative navigation risk can be used in practice when changing the conditions for safe operation of vessels in the waterway system and when the system is modernized. Navigational safety management is a decision process that is implemented in the loop presented in the article. The acceptable risk is determined on the basis of vessel traffic intensity and ship parameters defined by safe operation conditions for a given waterway system. Relative navigational risk may be used in assessment and comparison of various conditions of safe ship operation. The probability of an accident caused by ship's moving outside the available navigable area due to technical failures of ship equipment or tugs is determined, depending on the type of port waterway and the manoeuvres performed.
Źródło:
Archives of Transport; 2022, 64, 4; 119--134
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New learning methods for marine oil spill response training
Autorzy:
Halonen, J.
Lanki, A.
Rantavuo, E.
Powiązania:
https://bibliotekanauki.pl/articles/117267.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
oil spill
environmental protection
new learning methods
marine oil spill
oil spill response training
Regional Fire and Rescue Services (RFRS)
MET System in Finland
Global Maritime Distress and Safety System (GMDSS)
Opis:
In Finland the Regional Fire and Rescue Services (RFRS) are responsible for near shore oil spill response and shoreline cleanup operations. In addition, they assist in other types of maritime incidents, such as search and rescue operations and fire-fighting on board. These statutory assignments require the RFRS to have capability to act both on land and at sea. As maritime incidents occur infrequently, little routine has been established. In order to improve their performance in maritime operations, the RFRS are participating in a new oil spill training programme to be launched by South-Eastern Finland University of Applied Sciences. This training programme aims to utilize new educational methods; e-learning and simulator based training. In addition to fully exploiting the existing navigational bridge simulator, radio communication simulator and crisis management simulator, an entirely new simulator is developed. This simulator is designed to model the oil recovery process; recovery method, rate and volume in various conditions with different oil types. New simulator enables creation of a comprehensive training programme covering training tasks from a distress call to the completion of an oil spill response operation. Structure of the training programme, as well as the training objectives, are based on the findings from competence and education surveys conducted in spring 2016. In these results, a need for vessel maneuvering and navigation exercises together with actual response measures training were emphasized. Also additional training for maritime radio communication, GMDSS-emergency protocols and collaboration with maritime authorities were seemed important. This paper describes new approach to the maritime operations training designed for rescue authorities, a way of learning by doing, without mobilising the vessels at sea.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 339-345
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
International safety management – safety management systems and the challenges of changing a culture
Autorzy:
Hanchrow, G.
Powiązania:
https://bibliotekanauki.pl/articles/116596.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety culture
International Safety Management (ISM)
Safety Management System (SMS)
Document of Compliance (DOC)
ISM Code
maritime safety culture
human factor
safety at sea
Opis:
Over the past generation, the ISM code has brought forth tremendous opportunities to investigate and enhance the human factor in shipping through the implementation of Safety Management Systems. One of the critical factors to this implementation has been mandatory compliance and a requirement for obtaining a Document of Compliance (DOC) for vessels operating globally or at least internationally. A primary objective of these systems is to maintain them as “living” or “dynamic” systems that are always evolving. As the ISM code has evolved, there have been instances where large organizations have opted to maintain a voluntary DOC from their respective class society. This has been accomplished with a large human factor element as typically an organizational culture does not always accept change readily especially if there is not a legal requirement to do so. In other words, when considering maritime training is it possible that organizations may represent cultural challenges? The intent of this paper will be to research large maritime operations that have opted for a document of compliance voluntarily and compare them to similar organizations that have been mandated by international law to do the same. The result should be to gain insight into the human factors that must contribute to a culture change in the organization for the purposes of a legal requirement versus the human factors that contribute to a voluntary establishment of a safety management system. This analysis will include both the executive decision making that designs a system implementation and the operational sector that must execute its implementation. All success and failures of education and training can be determined by the outcome. Did the training achieve its goal? Or has the education prepared the students to embrace a new idea in conjunction with a company goal or a new regulatory scheme? In qualifying the goal of a successful ISM integration by examining both mandatory and voluntary ISM implementation in large maritime operations, specifically ferry systems, hopefully we can learn from the various factors that have gone into each.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 1; 125-131
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alternative maritime satellite solutions for enhanced GMDSS network
Autorzy:
Ilcev, D. S.
Powiązania:
https://bibliotekanauki.pl/articles/2172508.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
International Maritime Organization
Global Maritime Distress and Safety System
Maritime Global Ship Tracking
Maritime GNSS Augmentation Satellite Data Link
Satellite Data Link
Integrated Radio-Automatic Identification System
International Mobile Satellite Organization
Opis:
In this paper are introduced alternative architectures for the novel development of the enhanced Global Maritime Distress and Safety System (GMDSS) satellite communication network and equipment within the Gostationary Erath Orbits (GEO and Non-GEO satellite constellations. Since its founding in 1959, the International Maritime Organization (IMO) and its member states, in close co-operation with the International Telecommunication Union (ITU) and other international organizations, notably the World Meteorological Organization (WMO), the International Hydrographic Organization (IHO), the International Mobile Satellite Organization (IMSO) and Cospas-Sarsat partners, have striven to improve maritime distress and safety radio and satellite communications, as well as general communications for operational and personal purposes. This paper also reviews the principal concept of the GMDSS network, an overview of existing LRIT and maritime Integrated Radio-Automatic Identification System (R-AIS) and Satellite-AIS (S-AIS) networks. In addition, new proposed by author networks of the Satellite Data Link (SDL), Maritime GNSS Augmentation Satellite Data Link (GASDL), Maritime Global Ship Tracking (GST), and Maritime Satellite Automatic Dependent Surveillance-Broadcast (SADS-B) are also described in this paper.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 2; 267--272
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications
Autorzy:
Ilcev, S. D.
Powiązania:
https://bibliotekanauki.pl/articles/116635.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Global Maritime Distress and Safety System (GMDSS)
Maritime Mobile Satellite Communications (MMSC)
Multiple Access (MA)
Multiple Access Techniques
Code Division Multiple Access (CDMA)
Time Division Multiple Access (TDMA)
Frequency Division Multiple Access (FDMA)
Random (Packet) Division Multiple Access (RDMA)
Opis:
In this paper are introduced fundamentals, characteristics, advantages and disadvantages of Multiple Access (MA) employed as transmission techniques in the Maritime Mobile Satellite Communications (MMSC) between ships and Coast Earth Station (CES) via Geostationary Earth Orbit (GEO) or Not-GEO satellite constellations. In fixed satellite communication, as a rule, especially in MMSC many users are active at the same time. The problem of simultaneous communications between many single or multipoint mobile satellite users can be solved by using MA technique, such as Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), Space Division Multiple Access (SDMA) and Random (Packet) Division Multiple Access (RDMA). Since the resources of the systems such as the transmitting power and the bandwidth are limited, it is advisable to use the channels with complete charge and to create a different MA to the channel. This generates a problem of summation and separation of signals in the transmission and reception parts, respectively. Deciding this problem consists in the development of orthogonal channels of transmission in order to divide signals from various users unambiguously on the reception part.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 4; 529-540
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
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