三次样条函数在声学多普勒流速剖面仪数据处理中的应用  

Cubic spline function applied in the ADCP data processing

作　　者：吴立[1,2] 刘健[1] 冀大雄[1] 

机构地区：[1]中国科学院沈阳自动化研究所,沈阳110016 [2]中国科学院研究生院,北京100049

出　　处：《计算机应用》2011年第A01期207-208,共2页journal of Computer Applications

摘　　要：在使用ADCP观测的海流资料时,需要知道两个观测值之间未经测定的一些数据,首先要将已测点资料点于方格纸上,再以一条光滑曲线将这些测点连接起来,然后从曲线上摘取需要的数据,其效率低,容易出错。阐述了在计算机上如何用三次样条函数绘制曲线,并计算待求层的数据。When current data observed by Acoustic Doppler Current Profiler（ADCP） are used,the data between two observations need to be knowed.First,the measured points were pointed on the graph paper,then a smooth curve was drawn to connect these measured points and extract the needed data from the curve.It is not efficient and lead to error easily.It was described how to plot the curve using cubic spline function on the computer and calculate the required data.

关 键 词：三次样条函数 声学多普勒流速剖面仪 内插 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]