In this paper, the elliptic problems are discreted by linear elements, the finite element system are solved by PCG method.
本文用分片线性元离散椭圆型问题。用预处理共轭梯度法求解有限元方程。
Newton PCG method is an inexact Newton like method. It is an organic combination of Newton's method and preconditioned conjugate gradient method.
PCG算法是牛顿法和预优共轭梯度法结合起来解牛顿方程的一种非精确牛顿法。
It allows beat free extraction of close and crossing orders in systems with multiple shafts using Preconditioned Conjugate Gradient (PCG) method.
采用预处理共轭梯度法求解多轴阶比，实现了邻近和交叉阶比分量的解耦提取。
To achieve this, noise in the PCG signal should be removed, and a segmentation method should be used to locate the first heart sound.
为此，需要消除PC G信号中的噪声，并用分段算法定位第一心音。
To achieve this, noise in the PCG signal should be removed, and a segmentation method should be used to locate the first heart sound.
为此，需要消除PC G信号中的噪声，并用分段算法定位第一心音。
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