Determination of Ship Approach Parameters in the Polar Coordinates System
More details
Hide details
West Pomeranian University of Technology Faculty of Computer Science and Information Technology Szczecin, Poland
Institute of Marine Navigation, Maritime University of Szczecin Szczecin, Poland
Online publication date: 2014-07-26
Publication date: 2014-06-01
Reports on Geodesy and Geoinformatics 2014;96:1-8
An essential aspect of the safety of navigation is avoiding collisions with other vessels and natural or man made navigational obstructions. To solve this kind of problem the navigator relies on automatic anti-collision ARPA systems, or uses a geometric method and makes radar plots. In both cases radar measurements are made: bearing (or relative bearing) on the target position and distance, both naturally expressed in the polar coordinates system originating at the radar antenna. We first convert original measurements to an ortho-Cartesian coordinate system. Then we solve collision avoiding problems in rectangular planar coordinates, and the results are transformed to the polar coordinate system. This article presents a method for an analysis of a collision situation at sea performed directly in the polar coordinate system. This approach enables a simpler geometric interpretation of a collision situation
Banachowicz, A. (2000). Planowanie podróży w ECDIS. XV Konferencja Katedr i Zakładów Geodezji na Wydziałach Niegeodezyjnych „Metody Geodezji, Fotogrametrii i Teledetekcji dla Inżynierii Środowiska i Budownictwa, Warszawa, 25-26 września 2000.
Banachowicz, A. & Wołejsza, P. (2008a). The Analysis of Possibilities How the Collision Between mv “Gdynia” and mv “Fu Shan Hai” Could Have Been Avoided. TRANSNAV - International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 2, No 4, pp. 377-381.
Banachowicz, A. & Wołejsza, P. (2008b). Calculation Accuracy of Safe Course Made Good in an Anticollision System. Transport Problems - International Scientific Journal, No 2, Vol. 3.
Danish Maritime Administration. Casualty investigation reports. www.dma.dk Wawruch, R. (1994). Urządzenie do automatycznego prowadzenia nakresów radarowych (ARPA). WSM, Gdynia.
Wawruch, R. (1994). Urządzenie do automatycznego prowadzenia nakresów radarowych (ARPA). WSM, Gdynia.
Journals System - logo
Scroll to top