%0 Conference Proceedings %T RCS of Radar Targets using Gaussian Beam Summation Method. Experimental Evaluation %+ Lab-STICC_ENSTAB_MOM_PIM %+ DGA Maîtrise de l'information (DGA.MI) %A Ghanmi, Helmi %A Khenchaf, Ali %A Pouliguen, P. %A Leye, P.O. %< avec comité de lecture %B 19th International Radar Symposium (IRS) %C Bonn, Germany %I IEEE %3 19th International Radar Symposium (IRS) %8 2018-06-20 %D 2018 %R 10.23919/IRS.2018.8448088 %K Mathematical model %K Radar cross-sections %K Apertures %K Method of moments %K Numerical simulation %K Electromagnetic scattering %Z Engineering Sciences [physics]/Electromagnetism %Z Engineering Sciences [physics]/Signal and Image processingConference papers %X We present an experimental validation of the numerical simulations of RCS using Gaussian Beam Summation method (GBS) in X band. In the high-frequency approximation, the main advantages of the GBS over ray method are related to the caustic problem. In this paper, the performance of GBS is illustrated with numerical and experimental evaluations of RCS of radar targets (flat plate, shell cylinder and a hollow cylinder with an aperture). The GBS method has been compared with Gaussian Beam Launching (GBL), classical Physical Optic (PO), and Method of Moment (MoM) and with experimental measurements. The experimental measurements have been realized in the anechoic chamber of the Lab-STICC (ENSTA Bretagne). %G English %L hal-01867225 %U https://ensta-bretagne.hal.science/hal-01867225 %~ UNIV-BREST %~ INSTITUT-TELECOM %~ ENSTA-BRETAGNE %~ CNRS %~ UNIV-UBS %~ ENSTA-BRETAGNE-STIC %~ ENIB %~ LAB-STICC %~ INSTITUTS-TELECOM