Fast RCS Calculation of 3-D Objects over a Frequency Band Based on Domain Decomposition Method in Conjunction with Asymptotic Wave Evaluation Technique
WANG Jie, HONG Wei. Fast RCS Calculation of 3-D Objects over a Frequency Band Based on Domain Decomposition Method in Conjunction with Asymptotic Wave Evaluation Technique[J]. Acta Electronica Sinica, 2001, 29(9): 1263-1265.
WANG Jie, HONG Wei. Fast RCS Calculation of 3-D Objects over a Frequency Band Based on Domain Decomposition Method in Conjunction with Asymptotic Wave Evaluation Technique[J]. Acta Electronica Sinica, 2001, 29(9): 1263-1265.DOI:
The Domain Decomposition Method (DDM) in conjunction with the asymptotic waveform evaluation (AWE) technique is applied to obtain the radar cross-section (RCS) of a 3-D cylinder over a frequency band.The equivalent electric current and magnetic current on the surface of the cylinder are firstly expanded in Taylor’s series over a given frequency and solved by FDFD-DDM.Then the Taylor’s series are converted to rational functions via Padè approximation and the surface equivalent electric current and magnetic current can be achieved at any frequency within a desired frequency band
which are used to calculate the RCS of the cylinder.A good agreement between our results and the results from reference verifies the validity of this technique.In addition
the computational efficiency is considerably improved compared with the traditional FDFD-DDM.