Title :
Two improved sailing algorithms for the accurate track calculating
Author :
Lin Wei ; Yuan Bingcheng ; Li Qin ; Li Houpu
Author_Institution :
Dept. of Weaponry Eng., Naval Univ. of Eng., Wuhan, China
Abstract :
In order to eliminate the systemic errors in the traditional methods of track calculating, the symbolic formulae of meridian arc´s forward and inverse solution are introduced, then Mercator sailing which could solve the problem of accurate track calculating is given. The calculation formula of Middle latitude is derived from its geometrical definition based on an elliptical earth, and then the precise middle latitude sailing method is available. Numerical examples show that the two methods derived by this paper could solve the problem of accurate track calculating under different reference ellipsoids in navigation.
Keywords :
geometry; marine engineering; tracking; Mercator sailing algorithm improvement; elliptical earth; geometrical definition; inverse solution; meridian arc forward; middle latitude formula; navigation; track calculating; Approximation methods; Computers; Earth; Equations; Law; Mathematical model; Navigation; Mercator sailing method; middle latitude sailing method; navigation; the accurate track calculating;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023987
