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Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening |
Wei Liu(刘玮)1, Chao Li(李超)1, Zhao-Yang Sun(孙兆阳)1, Yu Zhao(赵宇)2, Shi-You Wu(吴世有)1, Guang-You Fang(方广有)1 |
1 Key Laboratory of Electromagnetic Radiation and Sensing Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
2 Electric Power Research Institute of State Grid Beijing Electric Power Company, Beijing 100161, China |
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Abstract In the terahertz (THz) band, the inherent shake of the human body may strongly impair the image quality of a beam scanning single frequency holography system for personnel screening. To realize accurate shake compensation in imaging processing, it is quite necessary to develop a high-precision measure system. However, in many cases, different parts of a human body may shake to different extents, resulting in greatly increasing the difficulty in conducting a reasonable measurement of body shake errors for image reconstruction. In this paper, a body shake error compensation algorithm based on the raw data is proposed. To analyze the effect of the body shake on the raw data, a model of echoed signal is rebuilt with considering both the beam scanning mode and the body shake. According to the rebuilt signal model, we derive the body shake error estimated method to compensate for the phase error. Simulation on the reconstruction of point targets with shake errors and proof-of-principle experiments on the human body in the 0.2-THz band are both performed to confirm the effectiveness of the body shake compensation algorithm proposed.
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Received: 08 January 2016
Revised: 31 March 2016
Accepted manuscript online:
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PACS:
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84.40.Xb
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(Telemetry: remote control, remote sensing; radar)
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84.40.-x
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(Radiowave and microwave (including millimeter wave) technology)
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Fund: Project supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. YYYJ-1123). |
Corresponding Authors:
Chao Li
E-mail: cli@mail.ie.ac.cn
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Cite this article:
Wei Liu(刘玮), Chao Li(李超), Zhao-Yang Sun(孙兆阳), Yu Zhao(赵宇), Shi-You Wu(吴世有), Guang-You Fang(方广有) Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening 2016 Chin. Phys. B 25 088402
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[1] |
Zandonella C 2003 Nature 424 721
|
[2] |
Liu W, Li C, Sun Z Y, Zhang Q Y and Fang G Y 2015 Opt. Lett. 40 3384
|
[3] |
Feng W, Zhang R and Cao J C 2013 Physics 42 846 (in Chinese)
|
[4] |
Cooper K B, Dengler R J, Llombart N, Bryllert T, Chattopadhyay G, Schlecht E, Gill J, Lee C, Skalare A, Mehdi I and Siegel P H 2008 IEEE Trans. Anten. Propag. 56 2771
|
[5] |
Song Q, Zhao Y J, Redo-Sanchez A, Zhang C L and Liu X H 2009 Opt. Commun. 282 2019
|
[6] |
Gao X, Li C and Fang G Y 2014 Chin. Phys. B 23 028401
|
[7] |
Gao X, Li C and Fang G Y 2013 Chin. Phys. Lett. 30 068401
|
[8] |
Gao X, Li C, Gu S M and Fang G Y 2011 J. Infrared Millim. Terahertz Waves 32 1314
|
[9] |
Ahmed S S, Schiessl A and Schmidt L P 2011 IEEE Trans. Microwave Theory Technol. 59 3567
|
[10] |
Cooper K B, Dengler R J, Llombart N N, Thomas B, Chattopadhyay G and Siegel P H 2011 IEEE Trans. Terahertz Technol. 1 169
|
[11] |
Sheen D M, Hall T E, Severtsen R H, McMakin D L, Hatchell B K and Valdez L J 2010 Proc. SPIE 7670 767008
|
[12] |
Antonio G, Borja G, Oscar R, Grajal J, Badolato A, Beatriz M, Pilar G S and Besada J L 2014 IEEE Trans. Anten. Propag. 62 4997
|
[13] |
Sheen D M, Mcmakin D and Hall T 2010 Appl. Opt. 49 E83
|
[14] |
Gao X, Li C, Gu S M and Fang G Y 2012 IEEE Anten. Wireless Propag. Lett. 11 787
|
[15] |
Gu S M, Li C, Gao X, Sun Z Y and Fang G Y 2013 IEEE Trans. Geosci. Remote Sensing 51 2241
|
[16] |
Liu W, Li C, Sun Z Y, Zhang Q Y and Fang G Y 2015 IEEE Trans. Terahertz Technol. 5 967
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