数值最速下降路径方法计算高频散射场

摘要

The Fock currents from the3-D convex cylinder and sphere are considered.On invoking theincremental length diffraction coefficient(ILDC)technique,the resultant high frequency scattered fields areexpressed in terms of the Fock current from the convex scatterer.To efficiently solve the scattered fields,wepropose the efficient NSDP method.Numerical examples from the convex scatterers illustrate the efficiency ofthe high frequency scattered fields.