摘要
考虑小波多分辨分析与多重网格的相似性,多重网格的延拓算子具有低通滤波器的作用。结合小波的多分辨分析的性质与瀑布型多重网格的优点提出了一种新的瀑布型多重网格算法。二维场域的数值算例表明相对于经典的瀑布型多重网格法新算法的效率有了一定的提高。
Considering the similarities between wavelet multi-resolution analysis and cascadic multigrid method,the prolongation of the multigrid method has low pass filter function.Combined with the properties of wavelet multi-resolution analysis and the advantages of cascadic multigrid method,a new cascadic multigrid method is presented in this paper.The numerical examples of 2D field indicate that the new cascadic multigrid method is more effective.
出处
《桂林电子科技大学学报》
2011年第3期238-241,共4页
Journal of Guilin University of Electronic Technology
基金
广西科学研究与技术开发计划项目(0731018)
关键词
瀑布型多重网格方法
小波多分辨分析
滤波器
cascadic multigrid method
wavelet multi-resolution analysis
low pass filter
