Staggered Grid Scheme for the FFT-Based Methods

被引：0

作者：

XIE Jiaye ^{[1
,2
]}

KONG Weibin ^{[3
,2
]}

PANG Lili ^{[1
]}

SONG Weiju ^{[1
]}

HUANG Zhixiang ^{[4
]}

WU Xianliang ^{[4
]}

机构：

[1] Industrial Center, Nanjing Institute of Technology

[2] State Key Laboratory of Millimeter Waves

[3] College of Information Engineering, Yancheng Institute of Technology

[4] Key Laboratory of Intelligent Computing and Signal Processing, Ministry of Education, Anhui University

来源：

ChineseJournalofElectronics | 2019年 / 28卷 / 05期

基金：

美国国家科学基金会;

关键词：

Green’s function; Singularity; RFG-FFT; Staggered grid scheme; Corrected near matrix;

D O I：

暂无

中图分类号：

TP393.02 [];

学科分类号：

摘要：

A staggered grid scheme is proposed to reduce both the total memory requirement and the CPU time of generating the corrected near matrix in the FFTbased methods. Two sets of Cartesian grids are used to project the source points and the field points, respectively.The proposed method does not lower the efficiency of computing far matrix-vector products, compared with the traditional uniform Cartesian grid scheme. Some numerical experiments are provided to demonstrate both the correctness and the efficiency of the proposed method.

引用

页码：1066 / 1072

页数：7

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