New reduced matrix construction accelerated iterative solution of characteristic basis function method

Zhong-Gen Wang; Jun-Wen Mu; Han Lin; Wen-Yan Nie

doi:10.7498/aps.68.20190572

Journals >Acta Physica Sinica >Volume 68 >Issue 17 >Page 170201-1 > Article

Acta Physica Sinica
Vol. 68, Issue 17, 170201-1 (2019)

New reduced matrix construction accelerated iterative solution of characteristic basis function method

Zhong-Gen Wang^1、*, Jun-Wen Mu¹, Han Lin¹, and Wen-Yan Nie²

Author Affiliations

¹College of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan 232001, China

²College of Mechanical and Electrical Engineering, Huainan Normal University, Huainan 232001, China

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DOI: 10.7498/aps.68.20190572 Cite this Article

Zhong-Gen Wang, Jun-Wen Mu, Han Lin, Wen-Yan Nie. New reduced matrix construction accelerated iterative solution of characteristic basis function method[J]. Acta Physica Sinica, 2019, 68(17): 170201-1 Copy Citation Text

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(a) Calculation error and numbers of CBFs under different SVD thresholds of two methods; (b) singular value distribution curve in four sub-domains of the left hemisphere; (c) bistatic RCS of PEC sphere.(a)不同SVD门限下2种方法的计算误差及CBFs数目; (b)左半球面4个子域的奇异值分布曲线; (c)导体球双站RCS

Fig. 1. (a) Calculation error and numbers of CBFs under different SVD thresholds of two methods; (b) singular value distribution curve in four sub-domains of the left hemisphere; (c) bistatic RCS of PEC sphere.(a)不同SVD门限下2种方法的计算误差及CBFs数目; (b)左半球面4个子域的奇异值分布曲线; (c)导体球双站RCS

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Fig. 2. Bistatic RCS of cone-sphere with gap.锥球带缝体双站RCS

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Fig. 3. Monostatic RCS in HH polarization of NASA almond.杏仁体HH极化单站RCS

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目标及未知量个数	方法	阻抗矩阵填充/s	基函数构造/s	缩减矩阵构造/s	缩减矩阵方程求解/s	计算时间/s
导体球(17278)	CBFM	239.9	1081.4	41.7	0.44	1375.6
导体球(17278)	NCBFM	239.1	979.4	40.8	0.31	1267.9
锥球带缝体(124685)	CBFM	3297.5	27736.4	1535.7	104.5	32740.1
锥球带缝体(124685)	NCBFM	3289.2	26985.1	1506.6	57.3	31889.7
杏仁体(153690)	CBFM	4097.8	33173.5	3553.7	237.8	83936.8
杏仁体(153690)	NCBFM	4098.4	31832.3	3524.1	121.2	61437.9

Table 1. Comparison of computation time.

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