650 GHz bistatic scattering measurements on human skin

机译：人体皮肤上的650 GHz双基地散射测量

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Many groups are developing submillimeter cameras that will be used to screen human subjects for improvised explosive devices (IEDs) and other threat items hidden beneath their clothing. To interpret submillimeter camera images the scattering properties, specifically the bidirectional scattering distribution function (BSDF) must be known. This problem is not trivial because surfaces of man-made objects and human skin have topographic features comparable to the wavelength of submillimeter radiation - thus simple, theoretical scattering approximations do not apply. To address this problem we built a goniometer instrument to measure the BSDF from skin surfaces of live human subjects illuminated with a beam from a 650 GHz synthesized source. To obtain some multi-spectral information, the instrument was reconfigured with a 160 GHz source. Skin areas sampled are from the hand, interior of the forearm, abdomen, and back. The 650 GHz beam has an approximately Gaussian profile with a FWHM of approximately 1 cm. Instrument characteristics: angular resolution 2.9°; noise floor -45 dB/sr; dynamic range ＞ 70 dB; either s or p-polarization; 25° ≤ bidirectional-scattering-angle ≤ 180°; The human scattering target skin area was placed exactly on the goniometer center of rotation with normal angle of incidence to the source beam. Scattering power increased at the higher frequency. This new work enables radiometrically correct models of humans.

机译：许多小组正在开发亚毫米级相机，该相机将用于筛查人类对象是否有简易爆炸装置（IED）和隐藏在其衣服下的其他威胁物品。为了解释亚毫米相机图像的散射特性，特别是必须知道双向散射分布函数（BSDF）。这个问题并非微不足道，因为人造物体和人类皮肤的表面具有可与亚毫米级辐射波长相媲美的地形特征-因此，理论上的简单散射近似不适用。为了解决这个问题，我们构建了一个测角仪，用于测量被650 GHz合成光源照射的人的皮肤表面的BSDF。为了获得一些多光谱信息，将仪器重新配置为160 GHz信号源。采样的皮肤区域来自手，前臂内部，腹部和背部。 650 GHz光束具有近似高斯分布，其FWHM约为1 cm。仪器特性：角分辨率2.9°；本底噪声-45 dB / sr;动态范围＞ 70 dB； s或p极化； 25°≤双向散射角≤180°；将人类散射目标皮肤区域恰好放置在测角仪的旋转中心上，并且与源光束的入射角垂直。散射功率在较高频率下增加。这项新工作使放射线正确的人类模型成为可能。

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来源
《Passive and active millimeter-wave imaging XVII》|2014年|90780B.1-90780B.14|共14页
会议地点 Baltimore MD(US)
作者
Richard A. Chamberlin; Natalie Mujica-Schwahn; Erich N. Grossman;
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作者单位

National Institute of Standards and Technology, 325 Broadway Street, Boulder, CO 80305,University of Colorado, Boulder, CO 80309;

National Institute of Standards and Technology, 325 Broadway Street, Boulder, CO 80305,University of Colorado, Boulder, CO 80309;

National Institute of Standards and Technology, 325 Broadway Street, Boulder, CO 80305;

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原文格式 PDF
正文语种 eng
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关键词
submillimeter bidirectional reflectance distribution; human skin;

机译：亚毫米双向反射率分布；人的皮肤;

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1. Bistatic scattering from forest components. Part II: first validation of a bistatic polarimetric forest model in the VHF-UHF band [225–475 MHz] using indoor measurements [J] . Elise Colin-Koeniguer, Laetitia Thirion-Lefevre Waves in random and complex media . 2010,第1期

机译：来自森林成分的双基地散射。第二部分：使用室内测量首次验证VHF-UHF频段[225–475 MHz]中的双基地极化森林模型
2. Bistatic scattering from forest components. Part II: first validation of a bistatic polarimetric forest model in the VHF-UHF band [225-475 MHz] using indoor measurements [J] . Elise Colin-Koeniguer Laetitia Thirion-Lefevre Waves in Random and Complex Media . 2010,第1期

机译：来自森林成分的双基地散射。第二部分：使用室内测量首次验证VHF-UHF频段[225-475 MHz]中的双基地极化森林模型
3. Human skin-equivalent phantom for on-body antenna measurements in 60 GHz band [J] . Chahat N., Zhadobov M., Alekseev S., Electronics Letters . 2012,第2期

机译：用于人体人体等效的人体模型，用于60 GHz频段的人体天线测量
4. Multi-Layered, 3D Skin Phantoms of Human Skin in the Wavelength Range 650-850nm [C] . Franziska S. Goerlach, Nikolai Striffler, Tobias Lueddemann, International Conference on Intelligent Informatics and Biomedical Sciences . 2015

机译：多层，3D皮肤幻影的人体皮肤在波长范围内650-850nm
5. Investigation of bistatic scattering using numerical techniques and novel near-field measurements. [D] . Zahn, Daniel Jacob. 2001

机译：使用数值技术和新型近场测量研究双基地散射。
6. In vivo measurement of mid-infrared light scattering from human skin [O] . Anna P. M. Michel, Sabbir Liakat, Kevin Bors, 2013

机译：人体皮肤中红外光散射的体内测量
7. Messungen der stratosphärischen Spurengase CIO, HCI, 03, N20, H20 und OH mittels flugzeuggetragener Submillimeterwellen-Radiometrie bei 650 und 2500 GHz = Measurements of the stratospheric trace gases CIO, HCI, O3, N2O, H2O, and OH using airborne submm-wave radiometry at 650 and 2500 GHz [O] . Urban J. 1998

机译：平流层微量气体CIO，HCl，03的测量结果，N20，H 2 O和OH是指在650和2500千兆赫=平流微量气体CIO，HCl，O3，N2O，H 2 O，测量空气中的亚毫米辐射测量和利用航空submm波辐射测量OH在650和2500 GHz
8. Measurements of the single sideband suppression for a 650 GHz heterodyne receiver [R] . Crewell, S., Nett, H. 1992

机译：测量650 GHz外差接收机的单边带抑制

650 GHz bistatic scattering measurements on human skin

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