Millimeter-wave imaging of humans - basic experiments

Dallinger, Alexander; Schelkshorn, S.; Detlefsen, J.

doi:10.1109/icimw.2004.1422193

Cited by 4 publications

(2 citation statements)

References 5 publications

(1 reference statement)

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“…For two coherent receiving channels separated by a distance B usually called baseline the phase difference between two channels holds the information about the elevation. Due to the physical properties of the human skin (see Dallinger et al (2004)) most of the power transmitted by a sensor below the person will be reflected and not scattered back to the receiving antennas of the sensor. As a consequence only inhomogeneities will be visible.…”

Section: Interferometrymentioning

confidence: 99%

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Broadband circular interferometric millimetre-wave ISAR for threat detection

Bertl¹,

Dallinger²,

Detlefsen³

2007

Adv. Radio Sci.

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Abstract. To detect threats on a person's body surface the application of millimetre-waves is possible. In order to get a view of the person from all sides either the person has to be rotated standing on a turntable (Inverse Synthetic Aperture Radar, ISAR) or a sensor is moved on a circular path around the person (Synthetic Aperture Radar, SAR). The goal of the reconstruction is to obtain information about the shape of the threats and their positions in all three dimensions. At first the reconstruction is done along range and azimuth, which span the principal surface given by the sensor configuration. This paper reports on two methods to obtain the third spatial dimension. Due to the circular shape and its 3D focussing ability of the aperture this information can be obtained by the evaluation of the image focus. Secondly, if two coherent receiving channels are used, a possibility to achieve 3D spatial resolution is the processing of the interferometric phase. A comparison between these two will be presented.

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Section: Interferometrymentioning

confidence: 99%

“…Due to the physical properties of the human skin (see Dallinger et al, 2004) most of the power transmitted by a sensor below the person will be reflected and not scattered back to the receiving antennas of the sensor. As a consequence only inhomogeneities will be visible.…”

Section: Interferometrymentioning

confidence: 99%