Three-dimensional terahertz-wave holographic imaging based on mixed-domain reconstruction algorithm

被引：0

作者：

机构：

[1] Institute of Electronics, Chinese Academy of Sciences

[2] Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences

[3] University of Chinese Academy of Science

来源：

Gu, S. (nuaagsm@163.com) | 1600年 / Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China卷 / 25期

关键词：

Back-projection; Holographic imaging; Mixed-domain algorithm; Terahertz imaging; Three-dimensional imaging;

D O I：

10.3788/HPLPB20132506.1545

中图分类号：

学科分类号：

摘要：

A three-dimensional (3-D) image reconstruction algorithm based on mixed-domain is developed for terahertz holographic imager. Matched filtering in the spatial wave-number domain is employed to focus images in the vertical direction. Combined with back-projection technique used in the other two directions, the algorithm can focus images perfectly without complex 3-D Stolt interpolation computation compared with the frequency-wavenumber algorithm. Besides, motion compensations in the horizontal and range directions get easier to handle. The computational cost of the proposed algorithm is lower than the traditional 3-D back-projection algorithm owing to the FFT-based reconstruction in the vertical direction. Finally, some simulation and experimental imaging results are given in the 0.2 THz band to validate the algorithm.

引用

页码：1545 / 1548

页数：3

共 11 条

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