文章基本信息

标题：Analysis of the GNSS Constellation Impact on the Quality and Availability of Position in the Port of Świnoujście
其他标题：Analiza wpływu konstelacji GNSS na jakość i dostępność pozycji w porcie Świnoujście
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作者：Arkadiusz Tomczak ; Paweł Zalewski
期刊名称：Scientific Journals of the Maritime University of Szczecin
印刷版ISSN：1733-8670
电子版ISSN：2392-0378
出版年度：2004
卷号：2
页码：371-381
语种：English
出版社：MUS
摘要：The paper presents an analysis of the current GNSS constellation geometry (comprising 28 active GPS satellites) performed in the Port of Świnoujście.The geometry disturbances resulting from the harbour infrastructure were taken into consideration and values of mask angles were determined depending on ship’s position in the fairway and GPS antenna location.On this basis the availability of GPS position in the Port of Świnoujście was evaluated.The statistical analysis of satellites locations’ impact on the geometrical quality of GNSS receiver’s position was made after grouping available satellites’ parameters into four main sectors (N,E,S,and W).
其他摘要：The developed methodology for assessing the change in intaglio printing ink relief height using optical profilometry was applied to define reduction in the height of the intaglio printing ink relief height after artificial deterioration.The ink relief height reducing after deterioration is about 30–50 % of the height before wear for every values of printing nip pressure.It changes slightly depending on the pressure.The parameters of substrate affects more — the ink relief height reducing after deterioration is sub;stantially less for more durable banknote paper which may be due to the features of intaglio printing ink relief forming.
关键词：GPS;GNSS;safety of navigation;Port of Świnoujście.
其他关键词：GPS;GNSS;bezpieczeństwo nawigacji;port Świnoujście.