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Radar imaging simulation and characteristics analysis of the fine structure at terahertz frequencies

The fine structure of conductor surface can cause impact on the amplitude, phase of the scattered fields at THz frequencies. For analyzing these effects, periodic and reticulate structure whose dimension assimilates to wavelength, and rivets array structure with Perfect Electric Conductor(PEC) are t... Full description

Journal Title: Taihezi Kexue yu Dianzi Xinxi Xuebao = Journal of Terahertz Science and Electronic Information Technology 2017, Vol.15(2), p.165
Main Author: Yang, Xiaoyu
Other Authors: Gao, Jingkun , Deng, Bin , Wang, Hongqiang , Qin, Yuliang
Format: Electronic Article Electronic Article
Language: chi
Subjects:
Quelle: © ProQuest LLC All rights reserved
ID: ISSN: 2095-4980
Link: http://search.proquest.com/docview/2038674936/?pq-origsite=primo
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recordid: proquest2038674936
title: Radar imaging simulation and characteristics analysis of the fine structure at terahertz frequencies
format: Article
creator:
  • Yang, Xiaoyu
  • Gao, Jingkun
  • Deng, Bin
  • Wang, Hongqiang
  • Qin, Yuliang
subjects:
  • Fine Structure
  • Conductors
  • Rivets
  • Terahertz Frequencies
  • Radar Imaging
  • Electric Conductors
  • Ghosts
  • Computer Simulation
  • Convolution
ispartof: Taihezi Kexue yu Dianzi Xinxi Xuebao = Journal of Terahertz Science and Electronic Information Technology, 2017, Vol.15(2), p.165
description: The fine structure of conductor surface can cause impact on the amplitude, phase of the scattered fields at THz frequencies. For analyzing these effects, periodic and reticulate structure whose dimension assimilates to wavelength, and rivets array structure with Perfect Electric Conductor(PEC) are taken as examples to illustrate the characteristics of the scattered fields of different elevation angles in radar imaging. The convolution back projection algorithm is utilized to image the multi-angles, multi-frequency monostatic scattered fields echo data generated by the commercial software platform. The simulation results show that the scattering characteristics of different fine structures differ greatly. By employing the range profile analysis method, the reasons that form different features in the image domain are obtained. It is found that the mechanism of different image features can be resorted to the effects of coherent cancellation, coherent enhancement and the virtual ghosts. These results show that the THz wave owns an unique depictive ability for the fine structure.
language: chi
source: © ProQuest LLC All rights reserved
identifier: ISSN: 2095-4980
fulltext: no_fulltext
issn:
  • 20954980
  • 2095-4980
url: Link


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titleRadar imaging simulation and characteristics analysis of the fine structure at terahertz frequencies
creatorYang, Xiaoyu ; Gao, Jingkun ; Deng, Bin ; Wang, Hongqiang ; Qin, Yuliang
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subjectFine Structure ; Conductors ; Rivets ; Terahertz Frequencies ; Radar Imaging ; Electric Conductors ; Ghosts ; Computer Simulation ; Convolution
descriptionThe fine structure of conductor surface can cause impact on the amplitude, phase of the scattered fields at THz frequencies. For analyzing these effects, periodic and reticulate structure whose dimension assimilates to wavelength, and rivets array structure with Perfect Electric Conductor(PEC) are taken as examples to illustrate the characteristics of the scattered fields of different elevation angles in radar imaging. The convolution back projection algorithm is utilized to image the multi-angles, multi-frequency monostatic scattered fields echo data generated by the commercial software platform. The simulation results show that the scattering characteristics of different fine structures differ greatly. By employing the range profile analysis method, the reasons that form different features in the image domain are obtained. It is found that the mechanism of different image features can be resorted to the effects of coherent cancellation, coherent enhancement and the virtual ghosts. These results show that the THz wave owns an unique depictive ability for the fine structure.
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descriptionThe fine structure of conductor surface can cause impact on the amplitude, phase of the scattered fields at THz frequencies. For analyzing these effects, periodic and reticulate structure whose dimension assimilates to wavelength, and rivets array structure with Perfect Electric Conductor(PEC) are taken as examples to illustrate the characteristics of the scattered fields of different elevation angles in radar imaging. The convolution back projection algorithm is utilized to image the multi-angles, multi-frequency monostatic scattered fields echo data generated by the commercial software platform. The simulation results show that the scattering characteristics of different fine structures differ greatly. By employing the range profile analysis method, the reasons that form different features in the image domain are obtained. It is found that the mechanism of different image features can be resorted to the effects of coherent cancellation, coherent enhancement and the virtual ghosts. These results show that the THz wave owns an unique depictive ability for the fine structure.
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abstractThe fine structure of conductor surface can cause impact on the amplitude, phase of the scattered fields at THz frequencies. For analyzing these effects, periodic and reticulate structure whose dimension assimilates to wavelength, and rivets array structure with Perfect Electric Conductor(PEC) are taken as examples to illustrate the characteristics of the scattered fields of different elevation angles in radar imaging. The convolution back projection algorithm is utilized to image the multi-angles, multi-frequency monostatic scattered fields echo data generated by the commercial software platform. The simulation results show that the scattering characteristics of different fine structures differ greatly. By employing the range profile analysis method, the reasons that form different features in the image domain are obtained. It is found that the mechanism of different image features can be resorted to the effects of coherent cancellation, coherent enhancement and the virtual ghosts. These results show that the THz wave owns an unique depictive ability for the fine structure.
copMianyang
pubChina Academy of Engineering Physics
urlhttp://search.proquest.com/docview/2038674936/
date2017-01-01