Z
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Last name: ZEITLER
First name: A.
National audience
National audience
National audience
National audience
The conjugate gradient algorithm presented here, and applied to measured far-field scattered data shows its effectiveness in the reconstruction of metallic objects. This method can be, in principle, applied to any kind of lossy dielectric objects with near-field as well as far-field data.
National audience
This paper investigates mm-wave imaging in the W-band (75-110 GHz). Therefore the amplitude and phase of scattered fields of a dielectric cylinder have been measured and compared to simulated data. The contour of an acrylic cylinder has been successfully reconstructed with back-propagation of the complex scattered fields.
This communication investigates a bi-static scattering measurement system for mm-Wave imaging purposes in the W-band (75-110 GHz). The main benefit of using millimeter waves is the high resolution provided by short wavelengths (2.7 to 4 mm). The specific interest in the W-band stems from the increasing number of applications. The system...
Design of a folded reflectarray antenna (FRA) by phase only control to provide a cosecan squared beam pattern in elevation and a pencil-beam pattern in azimuth to detect objects on the ground, e.g., on runways. A very compact folded reflectarray antenna was fabricated and its radiation pattern over frequency was simulated. During the design...
On board systems are of growing interest for aerospace applications due to the increase of air traffic as well for civil as for military applications. Moreover, the spread out of drones leads to new security issues. On board systems requires not only detection capabilities but also a "sense and avoid" operation mode. This article describes the...
On board systems are of growing interest for aerospace applications due to the increase of air traffic as well for civil as for military applications. Moreover, the spread out of drones leads to new security issues. On board systems requires not only detection capabilities but also a "sense and avoid" operation mode. This article describes the...
This paper presents the results of FOD measurements conducted using a broadband 78 GHz radar sensor. Previous studies with a short-range setup up to 30 m showed promising results. However, to meet the requirements of the intended application, the range has to be increased significantly. As for all radar systems, the range can be extended by...
International audience
International audience
International audience
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