G
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Last name: GUILLANTON
First name: E.
D.E.A. Propagation Télécommunications et Télédétection
International audience
International audience
The paper deals with an iterative algorithm for reconstructing the complex permittivity profile of buried objects. The backscattered field is measured in a multistatic configuration at different frequencies. A Biconjugatc Gradient method is used to minimize a cost functional and a regularization procedure is applied using Edge-Preserving...
This paper describes the design and the high performance of a new balanced antipodal Vivaldi antenna for ultra‐wideband applications. The return loss, radiation pattern, antenna gain, and level of cross polarization of this antenna are presented for both simulated and experimental results. The antenna is demonstrated to have greater than decade...
International audience
International audience
The paper deals with an iterative algorithm for reconstructing the complex permittivity profile of buried objects. The backscattered field is measured in a multistatic configuration at different frequencies. A Biconjugatc Gradient method is used to minimize a cost functional and a regularization procedure is applied using Edge-Preserving...
This paper describes the design and the high performance of a new balanced antipodal Vivaldi antenna for ultra‐wideband applications. The return loss, radiation pattern, antenna gain, and level of cross polarization of this antenna are presented for both simulated and experimental results. The antenna is demonstrated to have greater than decade...
International audience
International audience
International audience
International audience
International audience
The detection and identification of buried inhomogeneities using electromagnetic waves are of crucial importance for many nondestructive testing applications. The paper deals with two different inversion algorithms for microwave tomography. First, a qualitative algorithm based on diffraction tomography for detecting the buried object, and...
International audience
The detection and identification of buried inhomogeneities using electromagnetic waves are of crucial importance for many nondestructive testing applications. The paper deals with two different inversion algorithms for microwave tomography. First, a qualitative algorithm based on diffraction tomography for detecting the buried object, and...
The detection and identification of buried inhomogeneities using electromagnetic waves are of crucial importance for many nondestructive testing applications. The paper deals with two different inversion algorithms for microwave tomography. First, a qualitative algorithm based on diffraction tomography for detecting the buried object, and...
The detection and identification of buried inhomogeneities using electromagnetic waves are of crucial importance for many nondestructive testing applications. The paper deals with two different inversion algorithms for microwave tomography. First, a qualitative algorithm based on diffraction tomography for detecting the buried object, and...
In the field of road construction and maintenance, the need for information on the thickness of very thin road layers is not satisfied by means of commercial pulse GPR, due to the inability of such devices to operate over ranges of several gigahertz. As a result, research has focused on the design of a step-frequency radar technique, able to...
In the field of road construction and maintenance, the need for information on the thickness of very thin road layers is not satisfied by means of commercial pulse GPR, due to the inability of such devices to operate over ranges of several gigahertz. As a result, research has focused on the design of a step-frequency radar technique, able to...
In the field of road construction and maintenance, the need for information on the thickness of very thin road layers is not satisfied by means of commercial pulse GPR, due to the inability of such devices to operate over ranges of several gigahertz. As a result, research has focused on the design of a step-frequency radar technique, able to...
International audience
International audience
This paper deals with the application of stepped frequency radar to subsurface imaging of buried targets with a final aim of object imaging and identification. The applications are mainly mines or UXO detection but also buried pipes. The depths considered here are a few cm to 15 cm under the surface (from the top of the object). It is necessary...