Title :
Scattering of an object with impedance surfaces using IPO and MLFMM
Author :
Ranjbar, Ehsan Rashidi ; Dehmollaian, Mojtaba
Author_Institution :
Sch. of Electr. & Comput. Eng., Univ. of Tehran, Tehran, Iran
Abstract :
Scattering from an electrically large object having impedance boundaries is evaluated using the approximate high frequency technique, iterative physical optics (IPO) together with the multilevel fast multipole method (MLFMM), a fast hybrid technique. For example, radar cross section (RCS) of an airplane with size of about 78λ×85λ×28λ λbeing the wavelength at the operation frequency of 1GHz is computed within 20 minutes. The result is verified with that of method of moment (MoM)-MLFMM, carried out in about 5.5 hours.
Keywords :
electromagnetic wave scattering; iterative methods; method of moments; object detection; physical optics; radar cross-sections; radar signal processing; target tracking; IPO; RCS; impedance boundaries; iterative physical optics; method of moment-MLFMM; multilevel fast multipole method; radar cross section; Airplanes; Cavity resonators; Current density; Impedance; Optical surface waves; Physical optics; Surface impedance; Approximate high-frequency techniques; MLFMM; RCS computation;
Conference_Titel :
Electrical Engineering (ICEE), 2014 22nd Iranian Conference on
Conference_Location :
Tehran
DOI :
10.1109/IranianCEE.2014.6999794
