US 7,609,196 B2Granted

Method and device for imaging test objects by means of electromagnetic waves, in particular for inspecting individuals for suspicious items

AssigneeSmiths Heimann GmbH

InventorsMichael Jeck, Frank Gumbmann, Lorenz-Peter Schmidt, Hue-Phat Tran, Jochen Weinzierl

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Abstract

A method for imaging test objects by means of electromagnetic waves, in particular for the purpose of checking individuals for suspicious articles, in which method the test object is illuminated by electromagnetic waves, the scattered waves are received and evaluated for an imaginal representation of the test object on the basis of the synthetic aperture principle (SAR). A synthetic aperture is produced by the waves output by an antenna being concentrated initially in spatial terms, the point of high concentration being moved on a reflector along a circle.

Claims9

Dependent claims

A method for imaging test objects or inspecting individuals for suspicious items by electromagnetic waves, comprising the steps of

providing a synthetic aperture by first spatially concentrating electromagnetic waves emitted by an antenna to provide multiple locations of high concentration of said electromagnetic waves,
manipulating at least one location of high concentration to provide a moving virtual antenna;
illuminating a test object or individual with said moving virtual antenna of said electromagnetic waves;
and
receiving and analyzing scattered electromagnetic waves resulting from said illuminating step using synthetic aperture imaging (SAR) to display an image of the test object.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/044,218Filed 7 Mar 2008 · continuation
Priority: DE 10 2005 042 4637 Sep 2005
Published: US 2008/0211713 A14 Sep 2008
Granted: 27 Oct 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G01S 13/887
Radar or analogous systems specially adapted for specific applications: for detection of concealed objects, e.g. contraband or weapons
G01S 13/02
Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose…:…
G01S 13/90
For mapping or imaging: using synthetic aperture techniques , e.g. synthetic aperture radar [SAR] techniques
G01S 13/9082
SAR modes: rotating sar [rosar]

Family

PCT/EP2006/007906Parent of this continuation · filed 10 Aug 2006
US 2008/0211713 A1Pre-grant publication · published 4 Sep 2008
US 7,609,196 B2This patent

From the US filing history. Foreign family members aren’t listed.

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