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表面离散化边界方程法可以独立计算物体表面任意点处的电流密度,而所需求逆的矩阵阶数远小于矩量法。文中将它与渐近波形估计相结合实现了空域内的快速扫描,从而避免了许多重复计算。与矩量法相比,新方法降低了所需求逆矩阵的阶数,减小了存储需求,缩短了计算时间,提高了计算效率且易于并行计算。文中还将该方法成功运用到电大尺寸物体的散射问题中。计算表明对于尺寸越大的物体,新方法的优势就越明显。
The surface discretization boundary equation method can independently calculate the current density at any point on the surface of the object, but the inverse of the required matrix order is much smaller than the moment method. In this paper, we combine it with asymptotic waveform estimation to realize fast scanning in airspace, thus avoiding many double counting. Compared with the moment method, the new method reduces the order of the inverse matrix required, reduces the storage requirements, shortens the computation time, improves the computational efficiency and is easy to calculate in parallel. The method is also successfully applied to the scattering of large objects. Calculations show that for larger objects, the advantages of the new method become apparent.