三次样条函数在舰船磁场曲线拟合中的应用  

Application of Cubic Spline Function on Curve Fitting of Ship's Magnetic Field

作　　者：张国友[1] 郭小程[1] 肖翼洋[1] 

机构地区：[1]海军工程大学 电气与信息工程学院,湖北武汉430033

出　　处：《水雷战与舰船防护》2008年第4期5-8,共4页Mine warfare & Ship Self-Defence

摘　　要：针对舰船磁场曲线特征,分析比较不同的拟合方法,选用自然边界条件下的三次样条插值方法,对较少的离散磁场测量数据拟合,得到连续的舰船磁场曲线。此方法拟合精度较高,在工程上的等间距磁场测量方法中,可用于确定所需的最少测量点数,具有较强的工程实用价值。This article analyzes and compares several fitting methods according to the characteristics of the ship's magnetic field.And cubic spline interpolation method in natural boundary condition is selected for fitting of a small part of measuring data of discrete magnetic field.This method has the virtues of high precision and could be used to determine the minimum required number of measuring points in equally-spaced magnetic field measuring method in engineering.This method has great practical value in engineering.

关 键 词：曲线拟合 最小二乘曲线 三次样条插值 舰船磁场 

分 类 号：U674.70[交通运输工程—船舶及航道工程]