Error Comparison of CNFFFT and Hankel Method in RCS Near-Field to Far-Field Transformation

Peng Zhao, Weidong Hu, Yang Liu, Zhiyu Yao, Jianhang Sun

科研成果: 期刊稿件会议文章同行评审

摘要

At present, there are mainly two kinds of image-based near-field to far-field transformation (NFFFT) algorithms: Hankel method and circular near-field-to-far-field transformation (CNFFFT). Due to the approximation in the measurement distance, the accuracy of Hankel method is lower than that of CNFFFT. However, the implementation of CNFFFT is complex and time-consuming. It is necessary to determine the detailed relationship between the transformation error and the near-field test distance for both algorithms to provide a basis for the choice of which algorithm to use. In this paper, the effect of the near-field test distance approximation of the two algorithms is obtained by simulating 4, 5, and 9 scattering point models. Meanwhile, an accurate comparison method for two NFFFT algorithms under different test distances is proposed.

源语言英语
文章编号122003
期刊Journal of Physics: Conference Series
2478
12
DOI
出版状态已出版 - 2023
活动3rd International Conference on Defence Technology, ICDT 2022 - Changsha, 中国
期限: 22 8月 202226 8月 2022

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