期刊
RADIO SCIENCE
卷 49, 期 11, 页码 1041-1051出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2014RS005387
关键词
multiscale; dynamic electromagnetic scattering; preconditioner; sparse approximate inverse (SAI)
类别
资金
- Program for New Century Excellent Talents in University [NCET-12-0045]
- 111 Project of China [B14010]
- NSFC [61421001, 61371002]
- Excellent Scholars Support Fund of Beijing [2012D009011000002]
The inherent difficulties of traditional preconditioning techniques are revealed by numerically analyzing characteristics of method of moments systems with respect to multiscale dynamic electromagnetic applications. Techniques are developed to solve these difficulties for the traditional sparse approximate inverse preconditioner. The proposed techniques include a skeleton-based filtering strategy aiming to overcome the awkward filtering strategy extensively employed in traditional preconditioners and the strategy to recover the block structure of the inverse matrix. The proposed techniques are investigated by numerical experiments on complex targets.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据