{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T05:44:11Z","timestamp":1774935851031,"version":"3.50.1"},"reference-count":44,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,22]],"date-time":"2023-07-22T00:00:00Z","timestamp":1689984000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Computing the Radar Cross-Section (RCS) of a given object is a topic of major importance for many applications, e.g., target detection and stealth technology. In this context, high-frequency asymptotic methods are widely used. In this article, we derive a Gaussian Beam Summation (GBS) method for both metallic and dielectric targets. The basic idea is to use the GBS method to compute the scattering far fields generated by the equivalent currents flowing on the surfaces. The validity of the proposed method is then investigated in the X-band. To accomplish this, the results obtained using this technique were compared to those obtained using other sufficiently accurate methods such as the ray tracing of FEKO and the ray asymptotic solution. As an example of the method\u2019s accuracy, the GBS method was used to obtain the wave field in a homogeneous medium by fitting the results to a point source. In the same way, the method was used to compute the RCS of dielectric cuboids.<\/jats:p>","DOI":"10.3390\/rs15143663","type":"journal-article","created":{"date-parts":[[2023,7,24]],"date-time":"2023-07-24T01:12:28Z","timestamp":1690161148000},"page":"3663","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Computing the Radar Cross-Section of Dielectric Targets Using the Gaussian Beam Summation Method"],"prefix":"10.3390","volume":"15","author":[{"given":"Mira","family":"Kaissar Abboud","sequence":"first","affiliation":[{"name":"Lab-STICC\/SYPH\/PIM, ENSTA Bretagne, 2 Rue Fran\u00e7ois Verny, 29806 Brest, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8791-0768","authenticated-orcid":false,"given":"Ali","family":"Khenchaf","sequence":"additional","affiliation":[{"name":"Lab-STICC\/SYPH\/PIM, ENSTA Bretagne, 2 Rue Fran\u00e7ois Verny, 29806 Brest, France"}]},{"given":"Philippe","family":"Pouliguen","sequence":"additional","affiliation":[{"name":"Agence de l\u2019Innovation de D\u00e9fense, 60 Bd du G\u00e9n\u00e9ral Martial Valin, 75509 Paris, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4874-4047","authenticated-orcid":false,"given":"Thomas","family":"Bonnafont","sequence":"additional","affiliation":[{"name":"Lab-STICC\/SYPH\/PIM, ENSTA Bretagne, 2 Rue Fran\u00e7ois Verny, 29806 Brest, France"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,22]]},"reference":[{"key":"ref_1","first-page":"241","article-title":"Iterative physical optics for radar scattering predictions","volume":"24","author":"Burkholder","year":"2009","journal-title":"ACES J."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"166","DOI":"10.4236\/jamp.2015.32026","article-title":"Radar Cross Section analysis using physical optics and its applications to marine targets","volume":"3","author":"Hwang","year":"2015","journal-title":"J. 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