Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening

doi:10.1088/1674-1056/25/8/088402

中国物理B ›› 2016, Vol. 25 ›› Issue (8): 88402-088402.doi: 10.1088/1674-1056/25/8/088402

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening

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)

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

收稿日期:2016-01-08 修回日期:2016-03-31 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: Chao Li E-mail:cli@mail.ie.ac.cn
基金资助:
Project supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. YYYJ-1123).

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

Received:2016-01-08 Revised:2016-03-31 Online:2016-08-05 Published:2016-08-05
Contact: Chao Li E-mail:cli@mail.ie.ac.cn
Supported by:
Project supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. YYYJ-1123).

摘要/Abstract

摘要：

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.

关键词: body shake, compensation, THz imaging, single frequency holography, beam scanning

Abstract:

Key words: body shake, compensation, THz imaging, single frequency holography, beam scanning

中图分类号: (Telemetry: remote control, remote sensing; radar)

84.40.Xb

84.40.-x (Radiowave and microwave (including millimeter wave) technology)

刘玮, 李超, 孙兆阳, 赵宇, 吴世有, 方广有. Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening[J]. 中国物理B, 2016, 25(8): 88402-088402.

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[J]. Chin. Phys. B, 2016, 25(8): 88402-088402.

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Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening

Compensation of body shake errors in terahertz beam scanning single frequency holography for standoff personnel screening

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