Anthony W. Isenor, R. Cross, S. Webb, Anna-Liesa S. Lapinski
Defence Research and Development Canada – Atlantic (DRDC Atlantic) is currently involved in research on the topic of northern Maritime Domain Awareness (MDA). One project, entitled Situational Information for Enabling Development of Northern Awareness (SEDNA), includes research on the exploitation of MDA data in northern areas. One aspect of this research is to utilize wide area MDA data to provide awareness to an unattended, land-based system. Wide area MDA is attained through the use of space-based AIS (SAIS) data, a data feed used by the Canadian Department of National Defence and supplied by the commercial provider exactEarth Ltd. The land-based surveillance system used is the remote northern system constructed within the DRDC Northern Watch Technology Demonstration Project. Northern Watch is a multi-year project intended to show state-of-the-art, unattended, surveillance capabilities in the Canadian north. The link between the SAIS and Northern Watch is provided by a research infrastructure that consists of an assembly of data sources, users, applications, and product management techniques that collectively support research in areas such as information management and MDA data exploitation. High-level descriptions of the systems are provided along with elaboration on the alerting algorithm, the notifications that would be sent to the Northern Watch southern command site, and the resulting actions that could be taken by the Northern Watch surveillance system.
{"title":"Utilizing wide area maritime domain awareness (MDA) data to cue a remote surveillance system","authors":"Anthony W. Isenor, R. Cross, S. Webb, Anna-Liesa S. Lapinski","doi":"10.1117/12.2028597","DOIUrl":"https://doi.org/10.1117/12.2028597","url":null,"abstract":"Defence Research and Development Canada – Atlantic (DRDC Atlantic) is currently involved in research on the topic of northern Maritime Domain Awareness (MDA). One project, entitled Situational Information for Enabling Development of Northern Awareness (SEDNA), includes research on the exploitation of MDA data in northern areas. One aspect of this research is to utilize wide area MDA data to provide awareness to an unattended, land-based system. Wide area MDA is attained through the use of space-based AIS (SAIS) data, a data feed used by the Canadian Department of National Defence and supplied by the commercial provider exactEarth Ltd. The land-based surveillance system used is the remote northern system constructed within the DRDC Northern Watch Technology Demonstration Project. Northern Watch is a multi-year project intended to show state-of-the-art, unattended, surveillance capabilities in the Canadian north. The link between the SAIS and Northern Watch is provided by a research infrastructure that consists of an assembly of data sources, users, applications, and product management techniques that collectively support research in areas such as information management and MDA data exploitation. High-level descriptions of the systems are provided along with elaboration on the alerting algorithm, the notifications that would be sent to the Northern Watch southern command site, and the resulting actions that could be taken by the Northern Watch surveillance system.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117010328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Schilling, A. Lenz, W. Gross, Dominik Perpeet, Sebastian Wuttke, W. Middelmann
Modern mission characteristics require the use of advanced imaging sensors in reconnaissance. In particular, high spatial and high spectral resolution imaging provides promising data for many tasks such as classification and detecting objects of military relevance, such as camouflaged units or improvised explosive devices (IEDs). Especially in asymmetric warfare with highly mobile forces, intelligence, surveillance and reconnaissance (ISR) needs to be available close to real-time. This demands the use of unmanned aerial vehicles (UAVs) in combination with downlink capability. The system described in this contribution is integrated in a wing pod for ease of installation and calibration. It is designed for the real-time acquisition and analysis of hyperspectral data. The main component is a Specim AISA Eagle II hyperspectral sensor, covering the visible and near-infrared (VNIR) spectral range with a spectral resolution up to 1.2 nm and 1024 pixel across track, leading to a ground sampling distance below 1 m at typical altitudes. The push broom characteristic of the hyperspectral sensor demands an inertial navigation system (INS) for rectification and georeferencing of the image data. Additional sensors are a high resolution RGB (HR-RGB) frame camera and a thermal imaging camera. For on-line application, the data is preselected, compressed and transmitted to the ground control station (GCS) by an existing system in a second wing pod. The final result after data processing in the GCS is a hyperspectral orthorectified GeoTIFF, which is filed in the ERDAS APOLLO geographical information system. APOLLO allows remote access to the data and offers web-based analysis tools. The system is quasi-operational and was successfully tested in May 2013 in Bremerhaven, Germany.
{"title":"Concept and integration of an on-line quasi-operational airborne hyperspectral remote sensing system","authors":"H. Schilling, A. Lenz, W. Gross, Dominik Perpeet, Sebastian Wuttke, W. Middelmann","doi":"10.1117/12.2028650","DOIUrl":"https://doi.org/10.1117/12.2028650","url":null,"abstract":"Modern mission characteristics require the use of advanced imaging sensors in reconnaissance. In particular, high spatial and high spectral resolution imaging provides promising data for many tasks such as classification and detecting objects of military relevance, such as camouflaged units or improvised explosive devices (IEDs). Especially in asymmetric warfare with highly mobile forces, intelligence, surveillance and reconnaissance (ISR) needs to be available close to real-time. This demands the use of unmanned aerial vehicles (UAVs) in combination with downlink capability. The system described in this contribution is integrated in a wing pod for ease of installation and calibration. It is designed for the real-time acquisition and analysis of hyperspectral data. The main component is a Specim AISA Eagle II hyperspectral sensor, covering the visible and near-infrared (VNIR) spectral range with a spectral resolution up to 1.2 nm and 1024 pixel across track, leading to a ground sampling distance below 1 m at typical altitudes. The push broom characteristic of the hyperspectral sensor demands an inertial navigation system (INS) for rectification and georeferencing of the image data. Additional sensors are a high resolution RGB (HR-RGB) frame camera and a thermal imaging camera. For on-line application, the data is preselected, compressed and transmitted to the ground control station (GCS) by an existing system in a second wing pod. The final result after data processing in the GCS is a hyperspectral orthorectified GeoTIFF, which is filed in the ERDAS APOLLO geographical information system. APOLLO allows remote access to the data and offers web-based analysis tools. The system is quasi-operational and was successfully tested in May 2013 in Bremerhaven, Germany.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121468736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Javidi, Abhijit Mahalanobis, X. Xiao, Y. Rivenson, R. Horisaki, A. Stern, P. Latorre-Carmona, M. Martínez-Corral, F. Pla, J. Tanida
In this keynote address paper, we present an overview of our previously published work on using compressive sensing in multi-dimensional imaging. We shall examine a variety of multi dimensional imaging approaches and applications, including 3D multi modal imaging integrated with polarimetric and multi spectral imaging, integral imaging and digital holography. This Keynote Address paper is an overview of our previously reported work on 3D imaging with compressive sensing.
{"title":"Multi-dimensional compressive imaging","authors":"B. Javidi, Abhijit Mahalanobis, X. Xiao, Y. Rivenson, R. Horisaki, A. Stern, P. Latorre-Carmona, M. Martínez-Corral, F. Pla, J. Tanida","doi":"10.1117/12.2034426","DOIUrl":"https://doi.org/10.1117/12.2034426","url":null,"abstract":"In this keynote address paper, we present an overview of our previously published work on using compressive sensing in multi-dimensional imaging. We shall examine a variety of multi dimensional imaging approaches and applications, including 3D multi modal imaging integrated with polarimetric and multi spectral imaging, integral imaging and digital holography. This Keynote Address paper is an overview of our previously reported work on 3D imaging with compressive sensing.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125202994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cory J. C. Brett, R. DiPietro, D. Manolakis, V. Ingle
Many military and civilian applications depend on the ability to remotely sense chemical clouds using hyperspectral imagers, from detecting small but lethal concentrations of chemical warfare agents to mapping plumes in the aftermath of natural disasters. Real-time operation is critical in these applications but becomes diffcult to achieve as the number of chemicals we search for increases. In this paper, we present efficient CPU and GPU implementations of matched-filter based algorithms so that real-time operation can be maintained with higher chemical-signature counts. The optimized C++ implementations show between 3x and 9x speedup over vectorized MATLAB implementations.
{"title":"Efficient implementations of hyperspectral chemical-detection algorithms","authors":"Cory J. C. Brett, R. DiPietro, D. Manolakis, V. Ingle","doi":"10.1117/12.2028562","DOIUrl":"https://doi.org/10.1117/12.2028562","url":null,"abstract":"Many military and civilian applications depend on the ability to remotely sense chemical clouds using hyperspectral imagers, from detecting small but lethal concentrations of chemical warfare agents to mapping plumes in the aftermath of natural disasters. Real-time operation is critical in these applications but becomes diffcult to achieve as the number of chemicals we search for increases. In this paper, we present efficient CPU and GPU implementations of matched-filter based algorithms so that real-time operation can be maintained with higher chemical-signature counts. The optimized C++ implementations show between 3x and 9x speedup over vectorized MATLAB implementations.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126846765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The essential technical aspects of Passive Millimeter Wave Imaging have been known for nearly a century, but widespread implementation did not occur until inexpensive millimeter wave amplifiers appeared in the 1990. This paper takes a look at the early work that has led to today's successful PMMW products, as well as some of the failed technologies that seem to be revisited over and over again.
{"title":"History and challenges of passive millimeter wave imaging","authors":"A. Pergande","doi":"10.1117/12.2035982","DOIUrl":"https://doi.org/10.1117/12.2035982","url":null,"abstract":"The essential technical aspects of Passive Millimeter Wave Imaging have been known for nearly a century, but widespread implementation did not occur until inexpensive millimeter wave amplifiers appeared in the 1990. This paper takes a look at the early work that has led to today's successful PMMW products, as well as some of the failed technologies that seem to be revisited over and over again.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115322464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Marchese, M. Terroux, F. Généreux, B. Tremblay, M. Bolduc, A. Bergeron
Terahertz is a field in constant expansion. Multiple applications are foreseen including see-through imaging. To develop deployable systems, real-time two-dimensional cameras are needed rather than monopixel detectors or linear arrays that require mechanical scanning systems. INO has recently developed a real-time (video rate) 384x288 THz camera exhibiting excellent sensitivity and low noise levels. The core of the THz imager is the 35 μm pitch detector array that is based on INO’s uncooled VOx microbolometer technology and fabricated in INO’s clean room. A standard ceramic package is used for final packaging. The detector FPA is finally sealed with a high resistivity float zone silicon (HRFZ-Si) window having an anti-reflective coating consisting of thick Parylene, which the thickness of which depends on the required optimization wavelength. The FPA is mounted on an INO IRXCAM core giving a passive THz camera assembly. The additional THz objective consists of a refractive 44 mm focal length F/1 THz lens. In this paper, a review of the characteristics of the THz camera at is performed. The sensitivity of the camera at various THz wavelengths is presented along with examples of the resolution obtained with the IRXCAM-384-THz camera core. See-through imaging results are also presented.
{"title":"Review of the characteristics of 384x288 pixel THz camera for see-through imaging","authors":"L. Marchese, M. Terroux, F. Généreux, B. Tremblay, M. Bolduc, A. Bergeron","doi":"10.1117/12.2029201","DOIUrl":"https://doi.org/10.1117/12.2029201","url":null,"abstract":"Terahertz is a field in constant expansion. Multiple applications are foreseen including see-through imaging. To develop deployable systems, real-time two-dimensional cameras are needed rather than monopixel detectors or linear arrays that require mechanical scanning systems. INO has recently developed a real-time (video rate) 384x288 THz camera exhibiting excellent sensitivity and low noise levels. The core of the THz imager is the 35 μm pitch detector array that is based on INO’s uncooled VOx microbolometer technology and fabricated in INO’s clean room. A standard ceramic package is used for final packaging. The detector FPA is finally sealed with a high resistivity float zone silicon (HRFZ-Si) window having an anti-reflective coating consisting of thick Parylene, which the thickness of which depends on the required optimization wavelength. The FPA is mounted on an INO IRXCAM core giving a passive THz camera assembly. The additional THz objective consists of a refractive 44 mm focal length F/1 THz lens. In this paper, a review of the characteristics of the THz camera at is performed. The sensitivity of the camera at various THz wavelengths is presented along with examples of the resolution obtained with the IRXCAM-384-THz camera core. See-through imaging results are also presented.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124287224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A 24GHz reflect-array based people screening system is described. Some of the considerations behind the design decisions are discussed. The details of the binary approximation to phase programming are given and supported with experimental results. The benefit of a non-cubic scan pattern is discussed. A single frame image showing resolution capability is presented.
{"title":"Reflect-array based mm-wave people screening system","authors":"B. Lyons, E. Entchev, Michael K. Crowley","doi":"10.1117/12.2028108","DOIUrl":"https://doi.org/10.1117/12.2028108","url":null,"abstract":"A 24GHz reflect-array based people screening system is described. Some of the considerations behind the design decisions are discussed. The details of the binary approximation to phase programming are given and supported with experimental results. The benefit of a non-cubic scan pattern is discussed. A single frame image showing resolution capability is presented.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114528425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Bowring, Dean O'Reilly, N. Salmon, D. Andrews, N. Rezgui, S. Harmer
The feasibility of screening hand luggage for concealed threat items such as Person-Borne Improvised Explosive Devices (PBIED's) both metallic and non-metallic, together with handguns and at millimetre wavelengths is investigated. Previous studies by the authors and others indicate that hand baggage material and fabric is much more transmissive and has less scattering at lower millimetre wave frequencies and the ability to use K-band active imaging with high spatial resolution presents an opportunity to image and hence recognise concealed threats. For this feasibility study, a 1.6 m aperture, 35 GHz security screening imaging system with a spatial resolution of 2.5 cm and a depth of field of around 5 cm is employed, using spatially incoherent illuminating panels to enhance image contrast. In this study, realistic scenarios using backpacks containing a realistic range of threat and non-threat items are scanned, both carried and standalone. This range of items contains large vessels suitable for containing simulated home-made PBIED’s and handguns. The comprehensive list of non-threat items includes laptops, bottles, clothing and power supplies. For this study, the range at which imaging data at standoff distances can be acquired is confined to that of the particular system in use, although parameters such as illumination and integration time are optimised. However, techniques for extrapolating towards effective standoff distances using aperture synthesis imagers are discussed. The transmission loss through fabrics and clothing that may form, or be contained in baggage, are reported over range of frequencies ranging from 26 to 110 GHz.
{"title":"A feasibility study into the screening and imaging of hand luggage for threat items at 35 GHz using an active large aperture (1.6 m) security screening imager","authors":"N. Bowring, Dean O'Reilly, N. Salmon, D. Andrews, N. Rezgui, S. Harmer","doi":"10.1117/12.2030835","DOIUrl":"https://doi.org/10.1117/12.2030835","url":null,"abstract":"The feasibility of screening hand luggage for concealed threat items such as Person-Borne Improvised Explosive Devices (PBIED's) both metallic and non-metallic, together with handguns and at millimetre wavelengths is investigated. Previous studies by the authors and others indicate that hand baggage material and fabric is much more transmissive and has less scattering at lower millimetre wave frequencies and the ability to use K-band active imaging with high spatial resolution presents an opportunity to image and hence recognise concealed threats. For this feasibility study, a 1.6 m aperture, 35 GHz security screening imaging system with a spatial resolution of 2.5 cm and a depth of field of around 5 cm is employed, using spatially incoherent illuminating panels to enhance image contrast. In this study, realistic scenarios using backpacks containing a realistic range of threat and non-threat items are scanned, both carried and standalone. This range of items contains large vessels suitable for containing simulated home-made PBIED’s and handguns. The comprehensive list of non-threat items includes laptops, bottles, clothing and power supplies. For this study, the range at which imaging data at standoff distances can be acquired is confined to that of the particular system in use, although parameters such as illumination and integration time are optimised. However, techniques for extrapolating towards effective standoff distances using aperture synthesis imagers are discussed. The transmission loss through fabrics and clothing that may form, or be contained in baggage, are reported over range of frequencies ranging from 26 to 110 GHz.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121639916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we present the fabrication and the initial characterization of a new type of coaxial cable having reduced leakage characteristics and the capability of transmitting optical signals, in additional to the RF signal, through the glass medium between the metallic conductors. The suggested decreased leakage and material loss is obtained by using different metallic shield geometry. The suggested model is composed of a central conductor surrounded by plurality of metallic wires circularly disposed.
{"title":"Preliminary fabrication and characterization of low-leakage hybrid coaxial cable","authors":"A. Rudnitsky, D. Elbaz, Z. Zalevsky","doi":"10.1117/12.2028939","DOIUrl":"https://doi.org/10.1117/12.2028939","url":null,"abstract":"In this paper we present the fabrication and the initial characterization of a new type of coaxial cable having reduced leakage characteristics and the capability of transmitting optical signals, in additional to the RF signal, through the glass medium between the metallic conductors. The suggested decreased leakage and material loss is obtained by using different metallic shield geometry. The suggested model is composed of a central conductor surrounded by plurality of metallic wires circularly disposed.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114871764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
At airport security checkpoints, authorities are demanding improved personnel screening devices for increased security. Active mm-wave imaging systems deliver the high quality images needed for reliable automatic detection of hidden threats. As mm-wave imaging systems assume static scenarios, motion effects caused by movement of persons during the screening procedure can degrade image quality, so very short measurement time is required. Multistatic imaging array designs and fully electronic scanning in combination with digital beamforming offer short measurement time together with high resolution and high image dynamic range, which are critical parameters for imaging systems used for passenger screening. In this paper, operational principles of such systems are explained, and the performance of the imaging systems with respect to motion within the scenarios is demonstrated using mm-wave images of different test objects and standing as well as moving persons. Electronic microwave imaging systems using multistatic sparse arrays are suitable for next generation screening systems, which will support on the move screening of passengers.
{"title":"Motion effects in multistatic millimeter-wave imaging systems","authors":"A. Schiessl, S. Ahmed, L. Schmidt","doi":"10.1117/12.2029348","DOIUrl":"https://doi.org/10.1117/12.2029348","url":null,"abstract":"At airport security checkpoints, authorities are demanding improved personnel screening devices for increased security. Active mm-wave imaging systems deliver the high quality images needed for reliable automatic detection of hidden threats. As mm-wave imaging systems assume static scenarios, motion effects caused by movement of persons during the screening procedure can degrade image quality, so very short measurement time is required. Multistatic imaging array designs and fully electronic scanning in combination with digital beamforming offer short measurement time together with high resolution and high image dynamic range, which are critical parameters for imaging systems used for passenger screening. In this paper, operational principles of such systems are explained, and the performance of the imaging systems with respect to motion within the scenarios is demonstrated using mm-wave images of different test objects and standing as well as moving persons. Electronic microwave imaging systems using multistatic sparse arrays are suitable for next generation screening systems, which will support on the move screening of passengers.","PeriodicalId":344928,"journal":{"name":"Optics/Photonics in Security and Defence","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115786363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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