1) meridianal arc measurement
子午线弧度测量
2) grade meridian measurement,meridonal arc measurement
子午线弧度测量<测>
3) meridian arc length
子午线弧长
1.
In order to solve the problem of chart projection transformation among all projections in shiphandling simulator,using the theory of power series spreading out and the method of trigonometric power series calculating back, a direct and reverse solving algorithm models of meridian arc length, and Gauss projection and Mercator projection transforming algorithm are introduced in this paper.
为了解决船舶操纵模拟器中不同投影方式海图的投影变换问题 ,应用幂级数展开理论和三角级数回求方法 ,给出了子午线弧长、等量纬度的直接正反解算法模型及高斯投影与墨卡托投影的相互转化算法 。
2.
A new method for recursive computation of meridian arc length with discretionary precision is deduced on the basis of the arc formula, and its detailed algorithm as well as program in C/C++ are given.
根据子午线弧长计算公式,推导出基于递归关系的任意精度的子午线弧长的一种新的计算方法,以及基于C/C++语言的子午线弧长具体方法的实现,最后在VC6。
4) meridional arc length
子午线弧长
1.
A calculation formula of meridional arc length is introduced herein According to the formula, several commonly used ellisoids have been calculated The results show that comparison with conventional formula of elliptic integral, the said method has the advantages of simple calculation and satisfies the precision requirement
该文介绍一种子午线弧长的计算公式 ,依据该式对几种常用的椭球进行了计算。
5) foot point latitude
子午线弧长反解
1.
Making use of derivative rule of complex functions,how to compute a foot point latitude in ellipsoidal geodesy by Taylor expansion is described.
针对子午线弧长反解计算过于繁琐的问题,利用复合函数的求导法则,变换变量进行幂级数展开,给出了通项公式,利用Hermite插值原理推导了各参数,借助Mathematica计算机代数系统,得出了这些公式用偏心率e表示的幂级数表达式。
2.
As an important theoretical result, the paper also presents the general expression for the foot point latitude expansion.
针对子午线弧长反解计算过于繁琐的问题 ,文中利用复合函数的求导法则 ,变换变量进行幂级数展开 ,在近似情况下给出了通项公式 ,并严密推导了幂级数展开式。
6) meridian determination
子午线测定
补充资料：子午线
又称“经线”。子午面与地球表面的交线。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条