Terahertz Holographic Imaging Based on Wavenumber Domain Back-projection Algorithm

被引：0
|
作者：
Zhang, Ye [1 ]
Zhao, Yujiao [2 ]
Deng, Bin [1 ]
Yang, Qi [1 ]
Qin, Yuliang [1 ]
Wang, Hongqiang [1 ]
Wang, Zhan [1 ]
机构：
[1] Natl Univ Def Technol, Sch Elect Sci, Changsha 410073, Peoples R China
[2] China Acad Engn Phys, Microsyst & Terahertz Res Ctr, Chengdu 610000, Peoples R China
来源：
2018 11TH UK-EUROPE-CHINA WORKSHOP ON MILLIMETER WAVES AND TERAHERTZ TECHNOLOGIES (UCMMT2018), VOL 1 | 2018年
关键词：
D O I：
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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 wavenumber domain back-projection algorithm is proposed and applied to terahertz holographic imaging. Firstly, the spatial wavenumber domain sampling interval and the number of sampling points are determined according to the range and pixel interval of the image, and then the distribution of the spatial three-dimensional wavenumber domain is obtained. The data of each frequency point of the echo signal is projected to the corresponding wavenumber position, and make a coherent accumulation of the wavenumber domain data of different array elements. Finally, performing three-dimensional inverse Fourier transform on the spatial wavenumber domain data and we can obtain the three-dimensional reconstruction image of the targets. The effectiveness of the proposed method is verified by simulations and experiments in the 140GHz band.
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页数：3
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