Results 181 to 190 of about 1,794 (207)
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Asynchronous optical sampling, terahertz impulse radar
2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009Rapid THz impulse radar was achieved by combination of time-of-flight measurement of THz pulse and asynchronous optical sampling technique. The precision of 354 µm was achieved in the displacement measurement.
Y. Ohgi +4 more
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Study on terahertz radar anti-electromagnetic interference
2010 International Conference on Chemistry and Chemical Engineering, 2010General application form of Energy eigenvalue expression is presented by base on Nano-crystalline structure, it as guide base on Genetic Optimization Algorithm, it has been verified for Doped rare earth ferrite in Nano-crystal structure, and Discussed the issue of such crystal THz transmission and loss of light and the diffraction conditions, for ...
GuiLin Lu +3 more
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A High-Resolution Terahertz LFMCW Experimental Radar
2013A summary of UESTC’s Terahertz (THz) imaging radar is presented, with an emphasis on some key design aspects. By using of the linear frequency modulated continuous-wave (LFMCW) radar technique with a 4.8 GHz bandwidth, nearly 3 cm range resolution is achieved.
Yao Gang, Zhang Biao, Min Rui
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Terahertz imaging radar with aperture synthetic techniques for object detection
2013 IEEE International Conference on Communications Workshops (ICC), 2013Terahertz imaging is considered as a promising detection and imaging method with wide application prospect in security inspection and counter-terrorism. In this paper, we present a frequency-modulated continuous-wave (FMCW) imaging radar with phase coherent reception. The proposed radar scheme works at 240GHz with a bandwidth of 4.8GHz.
Biao Zhang, Yiming Pi, Xiaobo Yang
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Time-frequency analysis of terahertz radar signal for vital signs sensing based on radar sensor
International Journal of Sensor Networks, 2013In this paper, we studied how to use radar sensing technology to monitor the human target and extract the heartbeat and breath rates of human beings using terahertz bandwidth. Specifically, a type of nonlinear time frequency analysis for the detection of weak signals, i.e., the Smoothed Pseudo Wigner Ville Distribution, is presented.
Zhengwu Xu, Yuanjie Wu, Xiaoqian Lu
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Terahertz Radar for Imaging Spinning Space Debris
2016With the increasing of human space activities, the resulting space debris could post a potential threat to on-orbit objects around the Earth, therefore, their size estimation is a vital task in the observation of space debris. Imaging with high-resolution terahertz radar is a promising technique to extract the dimensional and structural feature of the ...
Xu Yang, Zongjie Cao, Rui Min
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Study of range refocusing techniques for a Terahertz Imaging Radar
2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves, 2012In this contribution we compare two different techniques to perform a range refocusing from 12.5 m to 37.5 m in a Terahertz Imaging Radar. The first technique, already verified experimentally, consists on the mechanical translation of the transceiver, whereas the second technique consists on the deformation of a membrane mirror with the potential to ...
Beatriz Blazquez, Nuria Llombart
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Overview of Terahertz Radar Cooperation in Space Based Information Networks
2018The development of anti-stealth technologies become popular recently, especially the method to tackle the 5th combat aircraft such as F-22 from the US Air Force. Terahertz Radar has become one effective and promising way to detect stealth unit, and the characteristic of frequency makes it effective to discover the 5th stealth unit.
Yuan Gao 0003 +5 more
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Research Progress of Terahertz Radar Technology
Laser & Optoelectronics Progress, 2013王瑞君 Wang Ruijun +4 more
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An Optoelectronic M-Sequence Radar for the Terahertz Range
2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2023Kolpatzeck, Kevin +3 more
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