Realizing of algorithm of composite data filter and eliminating singular term using first difference method in data collection and processing were analyzed and calculation results were given.

介绍了建材检测微机控制系统总体结构，详细分析了数据采集与处理过程中复合数据滤波、一阶差分法剔除奇异项算法的实现过程，给出了计算结果。

youdao

First, the partial differential equations are transformed into discrete space, discrete time nonlinear difference equations through characteristic method and finite difference approach.

首先，通过特征线法和有限差分法得到了时间离散和空间离散的非线性状态方程。

youdao

On the basis of classic theory and formula, the flier plate action rule was first studied with the method of the numerical difference in characteristic line.

在经典理论及公式的基础上利用特征线数值插分方法对飞板运动规律进行研究。

youdao