A Novel Scheme with FG-FFT for Analysis of Electromagnetic Scattering from Large Objects

Author:

Xie Jia-Ye12ORCID,Yu Guang1,Pang Li-Li1,Kong Wei-Bin23,Huang Zhi-Xiang4ORCID

Affiliation:

1. Industrial Center, Nanjing Institute of Technology, Nanjing 211167, China

2. State Key Laboratory of Millimeter Waves, Nanjing 210096, China

3. College of Information Engineering, Yancheng Institute of Technology, Yancheng 224051, China

4. Key Laboratory of Intelligent Computing and Signal Processing, Ministry of Education, Anhui University, Hefei 230601, China

Abstract

The replacement values to the singularity of fitting Green’s function are intensively researched in Fitting Green’s function Fast Fourier Transformation (FG-FFT). As is shown in the research, the accuracy of fitting Green’s function of near element is affected by different replacement values. The experiments show that an appropriate replacement value can improve the accuracy of fitting Green’s function of near element, and it is called the optimal replacement value in this paper. In the case of application of the proposed scheme to FG-FFT, the number of the near correction elements is significantly reduced. Therefore, the optimal replacement scheme can dramatically reduce the memory requirement and computing time in FG-FFT. The experiments show that, compared with traditional random replacement schemes, the optimal replacement scheme can reduce the number of the near correction elements by about 55%~60% and greatly improve the computational efficiency of FG-FFT.

Funder

Natural Science Foundation of the Higher Education Institutions of Jiangsu Province

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. FFT-FFG for electromagnetic scattering from random rough surfaces;2022 International Applied Computational Electromagnetics Society Symposium (ACES-China);2022-12-09

2. An Optical Study of Disordering in Cadmium Mercury Telluride Solid Solutions;Technical Physics Letters;2019-06

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