基于大椭圆航线的船舶&lambda;置估算方法

李忠美; 张猛; 李劲澎; 陈进; 朱燕麒; 王凯

doi:10.16411/j.cnki.issn1006-7736.2020.04.003

大连海事大学学报 >

2020 , Vol. 46 >Issue 4: 17 - 23

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2020.04.003

船舶与海洋工程

基于大椭圆航线的船舶λ置估算方法

李忠美 ,
张猛 ,
李劲澎 ,
陈进 ,
朱燕麒 ,
王凯

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(北京市遥感信息研究所，北京 100011)?

李忠美*（1990 — ），女，博士，E-mail：15827116839@163.com.

收稿日期: 2020-06-16

修回日期: 2020-09-14

网络出版日期: 2020-09-14

基金资助

国家自然科学基金资助项目（41604010;41871376）.

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Ship position estimation method based on great ellipse route

LI Zhong-mei ,
ZHANG Meng ,
LI Jin-peng ,
CHEN Jin ,
ZHU Yan-qi ,
WANG Kai

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(Beijing Institute of Remote Sensing Information, Beijing 100011, China)

Received date: 2020-06-16

Revised date: 2020-09-14

Online published: 2020-09-14

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摘要

为实现对远洋航行船舶进行跟踪，首先，根据航线起点、终点确定大椭圆航线空间参数，利用符号迭代法反解椭圆弧长公式，得到船舶在大椭圆航线中对应的离心角；然后，基于大椭圆航线建立辅助空间直角坐标系，通过坐标系旋转将船舶λ置转化至地球椭球上进行表示，实现基于大椭圆航线的船舶λ置估算过程；最后，以两条航线为例，验证了本文算法在任意时刻船舶λ置估算中的有效性.本文仅需已知航线起点、终点及船舶航速，即可在一定程度上为远洋航行的船舶λ置估算提供参考.

关键词： 远洋航行; 大椭圆航线; 椭圆弧长; 船舶λ置; 离心角; 符号迭代法

本文引用格式

李忠美 , 张猛 , 李劲澎 , 陈进 , 朱燕麒 , 王凯 . 基于大椭圆航线的船舶λ置估算方法[J]. 大连海事大学学报, 2020 , 46(4) : 17 -23 . DOI: 10.16411/j.cnki.issn1006-7736.2020.04.003

Abstract

In order to realize the tracking of ocean going ships,firstly, the space parameters of the great ellipse route were determined according to the starting point and end point of the route, and ellipse arc length formula was inversely solved by using the symbolic iteration method to acquire the corresponding centrifugal angle of the ship in the great elliptical route .Then, the auxiliary space rectangular coordinate system was established based on the great ellipse route, and the ship position was converted to the Earch Ellipsoid by the coordinate system rotation, so as to realize the ship position estimation process based on the great elliptical route.Finally, two routes were taken as examples to verify the effectiveness of the algorithm in ship position estimation at any time. It can provide a reference for the position estimation of ocean going ships to a certain extent only need to know the starting point, the end point and the speed of the ship.

Key words： ocean going voyage; great ellipse route; ellipse arc length; ship position; centrifugal angle; symbol iteration method

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