Ultrawideband Microwave RADAR : Time Reversal and Inverse Scattering experiments

ISBN-13: 9783659182433 / Angielski / Miękka / 2012 / 252 str.

Lucio Bellomo; Sébastien Pioch; Marc Saillard

Opis

Today, non-destructive electromagnetic imaging is a key technology. Its applications include early detection of cancer, fault detection in building materials, sub-surface characterization of the soil, and landmine detection. This book follows a marked experimental approach. It describes the design of an antenna array RADAR prototype able to acquire data and perform beamforming within the [2-4] GHz frequency band. On one hand, qualitative imaging experiments have been performed. Time Reversal, as well as DORT and TR-MUSIC methods, has been applied to detect and localize scattering objects both in free-space and reverberating media. On the other hand, the prototype has been used for quantitative inverse scattering in very aspect-limited configurations. For this purpose, a non-linearized iterative algorithm has been adapted to the experimental setup through an accurate calibration procedure. Finally, the possibility of exploiting the features of Time Reversal within the quantitative frame has been studied. The goal is the improvement of the reconstruction of targets in random media mimicking those typical of medical imaging or sub-surface probing applications.

O autorze

Lucio Bellomo graduated from Politecnico di Torino and Télécom ParisTech in 2006. He received his Ph.D. at the Université du Sud Toulon-Var in 2012 for his work in inverse electromagnetic scattering. His interests have currently led him to the Mediterranean Institute of Oceanography for research in HF RADAR remote sensing of ocean currents.