Perturbation-based method for near-field cross-section imaging

被引：1
|
作者：
Kan, Yingzhi [1 ]
Zhu, Yongfeng [1 ]
Zhou, Jianxiong [1 ]
Yang, Lei [1 ]
Tang, Liang [1 ]
Fu, Qiang [1 ]
机构：
[1] Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha 410073, Hunan, Peoples R China
来源：
ELECTRONICS LETTERS | 2017年 / 53卷 / 02期
关键词：
D O I：
10.1049/el.2016.2479
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fast and interpolation-free algorithm for near-field cross-section imaging is presented. First a two-dimensional (2D) compensated non-uniform spatial spectrum in wavenumber domain is obtained by fast Fourier transform (FFT) and phase compensation. Then the non-uniform wavenumber grid is approximated to a newly constructed uniform grid which can be considered as perturbation basis. By doing first-order Taylor expansion, 2D inverse FFT can be performed on the perturbation basis to obtain the cross-section image. Experiment demonstrates the effectiveness and efficiency of the proposed method.
引用
收藏
页码：110 / U98
页数：2
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