Mathematical Modeling of THz Point Spread Function and Simulation of THz Imaging Systems

被引：112
|
作者：
Ahi, Kiarash [1 ,2 ]
机构：
[1] Univ Connecticut, Dept Elect & Comp Engn, Storrs, CT 06269 USA
[2] GLOBALFOUNDRIES, East Fishkill, NY 12533 USA
来源：
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2017年 / 7卷 / 06期
关键词：
Mathematical model; point spread function (PSF); raster scanning; THz imaging; TERAHERTZ SPECTROSCOPY; RESOLUTION; IDENTIFICATION; TOMOGRAPHY; RADIATION; TIME;
D O I：
10.1109/TTHZ.2017.2750690
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：
This paper presents a comprehensive theory for cohesive mathematical modeling and simulation of THz imaging systems. For mathematical modeling of the point spread function (PSF), system and transmission variables such as spectrum, absorption coefficient, beam divergence, and depth of focus are incorporated into the Gaussian beam distribution. The raster scanning process is mathematically modeled as the convolution of the object function and the PSF. Simulated transmission THz images are achieved as a result. The simulated THz images, compared to the experimental THz images, show great accuracy in terms of the location of the details and structural similarity.
引用
收藏
页码：747 / 754
页数：8
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