Mr. Jan A. Kjellgren Profile

Jan A. Kjellgren

Deputy Director of Research at Swedish Defence Research Agency

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Publications (5)

Proceedings Article | 13 October 2011 Paper

Standoff imaging of a masked human face using a 670 GHz high resolution radar

Jan Kjellgren, Jan Svedin, Ken Cooper

Proceedings Volume 8188, 818809 (2011) https://doi.org/10.1117/12.897513

KEYWORDS: Radar, Reflection, Distance measurement, Facial recognition systems, Spatial resolution, Radar imaging, Forensic science, Head, Imaging systems, Visualization

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Proceedings Article | 6 October 2008 Paper

Through-the-wall high-resolution imaging of a human and experimental characterization of the transmission of wall materials

S. Nilsson, A. Jänis, M. Gustafsson, J. Kjellgren, Ain Sume

Proceedings Volume 7117, 71170L (2008) https://doi.org/10.1117/12.802342

KEYWORDS: Radar, Antennas, Firearms, Image resolution, Defense and security, Radar imaging, Water, Sensors, Spatial resolution, Near field

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Proceedings Article | 3 October 2008 Paper

On 3D radar data visualization and merging with camera images

J. Kjellgren

Proceedings Volume 7117, 71170G (2008) https://doi.org/10.1117/12.799811

KEYWORDS: Radar, Cameras, Antennas, Visualization, Weapons, 3D image processing, Data centers, Opacity, Reflection, Reflectors

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Proceedings Article | 2 October 2008 Paper

Development of a 210 GHz near-field measurement radar system based on an antenna-integrated MMIC receiver front-end and an ultra-compact HBV transmitter source module

Jan Svedin, Jan Kjellgren, Staffan Rudner, Gunnar Thordarsson, Sten Gunnarsson, Niklas Wadefalk, Sergey Cherednichenko, Iltcho Angelov, Herbert Zirath, Jan Stake, Tomas Bryllert, Josip Vukusic

Proceedings Volume 7117, 71170H (2008) https://doi.org/10.1117/12.800247

KEYWORDS: Antennas, Receivers, Radar, Transmitters, Manufacturing, Gallium arsenide, Interference (communication), Waveguides, Signal to noise ratio, Near field

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Proceedings Article | 4 August 2003 Paper

A simple study of the information requirements for missile guidance

Jan Kjellgren

Proceedings Volume 5082, (2003) https://doi.org/10.1117/12.486024

KEYWORDS: Missiles, Time metrology, Weapons, Information theory, Target acquisition, Distance measurement, Error analysis, Defense and security, Atmospheric modeling, Navigation systems

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