DGTD for a Class of Low-Observable Targets: A Comparison With MoM and (2, 2) FDTD
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AuthorAlvarez Gonzalez, Jesús; Alonso Rodríguez, Jose Manuel; Carbajosa Cobaleda, Helena; Ruiz Cabello, Miguel; Diaz Angulo, Luis; Gomez Martin, Rafael; Gonzalez Garcia, Salvador
Discontinuous GalerkinTime-domain analysisRADAR cross-section
Alvarez Gonzalez, Jesús; et. al. DGTD for a Class of Low-Observable Targets: A Comparison With MoM and (2, 2) FDTD. IEEE Microwave and Wireless Comp. Lett., vol. 13, pp. 241-244, 2014. [http://hdl.handle.net/10481/50146]
SponsorshipThe work described in this paper and the research leading to these results has received funding from the European Community’s Seventh Framework Programme FP7/2007-2013, under grant agreement no 205294 (HIRF SE project), and from the Spanish National Projects TEC2010-20841-C04-04, CSD2008-00068, and the Junta de Andalucia Project P09-TIC-5
The simulation of low-observable targets requires high accuracy, both in the geometrical discretization as well as in the numerical solution of the electromagnetic problem. In this letter, we employ the well-known NASA almond, to illustrate the accuracy of the Leap-Frog Discontinuous Galerkin method, combined with a local time stepping algorithm, comparing it with the MoM and the (2,2) FDTD methods.