Temat: marine data - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Timestamp Discrepancies in Multisensor NMEA Environment during Survey Voyage
Autorzy:: Banyś, P.
Engler, E.
Heymann, F.
Noack, T.
Powiązania:: https://bibliotekanauki.pl/articles/359803.pdf
Data publikacji:: 2013
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: marine electronic devices
information
reliability of data
navigational data
survey voyage
Opis:: The standard for interfacing marine electronic devices (NMEA – National Marine Electronics Association), does not provide unambiguous information regarding the reliability of data and its timing. In this paper, time delays in navigational data are investigated. For this purpose AIS and navigational data collected offshore and onshore are used. The investigations are concentrated on lags among various NMEA sentences recorded in a relational database during the survey voyage. The analysis is based on standard elements of descriptive statistics.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 1; 22-26
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation of near-collisions in the Tagus River Estuary using a marine traffic simulation model
Autorzy:: Rong, H.
Teixeira, A.
Soares, C. G.
Powiązania:: https://bibliotekanauki.pl/articles/135293.pdf
Data publikacji:: 2015
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: near-collisions
ship domain
marine traffic simulation
artificial potential field
AIS data
maritime safety
Opis:: This paper evaluates near ship-ship collision situations in the Tagus River Estuary using a simulation model of ship navigation in restricted waters. The simulation model consists of a ship collision avoidance model based on the Artificial Potential Field (APF) method, which has been improved to account for the lateral distribution of traffic along the route, the ship type and length and speed development of the ships along the trajectory. AIS data of ships entering and leaving the port of Lisbon are analysed to obtain the main characteristics of traffic parameters used as input for the traffic simulation model, such as: the routes of the vessels, speed distribution along the routes, traffic density and characteristics of the ships in each route, among others. First, the improved model of ship navigation and the Monte Carlo simulation technique are used to simulate the marine traffic in the Tagus River Estuary. Then, the concept of “ship domain” is used as collision criterion to determine the number of near collisions and the locations where they are most likely to occur. Finally, the simulation results are compared to the ones obtained from raw AIS data to assess the capability of the simulation model for marine traffic risk analysis.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 43 (115); 68-78
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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