维普期刊资源整合服务平台（V6.5）

维普中文期刊产品整合服务

1篇 您的检索式：作者名="Kristopher T.Kim"

选中清除导出查看参考文献查看引证文献引用追踪共1页首页上一页第1页下一页末页 /1 跳转

		题名	作者	年代	出处	被引量
	1	Comparison and Improvement of the Computational Efficiencies of Two FFT-Based Iterative Solution Methods for the Scalar Multiple-Scattering Equation显示文摘We consider two existing FFT-based fast-convolution iterative solution techniques for the scalar T-matrix multiple-scattering equation[1].The use of the FFT operation requires field values be expressed on a regular Cartesian grid and the two techniques differ in how to go about achieving this.The first technique[6,7]uses the nondiagonal translation operator[1,9]of the spherical multipole field,while the second method[11]uses the diagonal translation operator of Rokhlin[10].Because of its use of the non-diagonal translator,the first technique has been thought to require a greater number of spatial convolutions than the second technique.We establish that the first method requires only half as many convolution operations as the second method for a comparable numerical accuracy and demonstrate,based on an actual CPU time comparison,that it can therefore perform iterations faster than the second method.We then consider the respective symmetry relations of the non-diagonal and diagonal translators and discuss a memory-reduction procedure for both FFT-based methods.In this procedure,we need to store only the minimum sets of near-field and far-field translation operators and generate missing elements on the fly using the symmetry relations.We show that the relative cost of generating the missing elements becomes smaller as the number of scatterers increases.	Kristopher T.Kim	2009	Communications in Computational Physics2009，5，1：	0

返回顶部每页显示：

共1页首页上一页第1页下一页末页 /1 跳转

goolge学术搜索-维普

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费