基于恒向线航法的航迹偏差计算  

Calculation of track bias based on rhumb line sailing

作　　者：郑云峰[1] 杨盐生[1] 李铁山[1] 臧胜永[1] 

机构地区：[1]大连海事大学航海学院,辽宁大连116026

出　　处：《大连海事大学学报》2003年第2期6-10,共5页Journal of Dalian Maritime University

基　　金：交通部"通达"计划资助项目(95070228).

摘　　要：介绍一种航迹精确计算方法,在此基础上,提出了计算航迹偏差的公式,并就影响航迹计算精度的计算参考点的选取,提出了一种实用方便的算法.该算法由于基于较精确的航迹计算,并且采用一步计算而不是累加计算,因此精度较高.基于该算法得到的航迹偏差,进行了混合智能航迹舵的设计,仿真效果令人满意.As an important control variable, the calculation and the precise of track bias imploy an important role in the trackkeeping control. The paper firstly introduces an precise method on dead reckoning and based on this provides the calculation formula of track bias and then an practical and convenient algorithm for the selection of the calculating reference point which affects the precise of the track bias. The algorithm bases on an precise calculation formulae of dead reckoning and uses onestep calculating method, the results have a high precise. Based on this method, we get the track bias and use it to design hybrid intelligent trackkeeping pilot and the simulation results are satisfactory. 

关 键 词：恒向线航法 航迹偏差 算法 计算精度 混合智能航迹舵 墨卡托海图 计算参考点 转向点 

分 类 号：U675.6[交通运输工程—船舶及航道工程] U662.2[交通运输工程—船舶与海洋工程]