incremental length meaning in English
长度增量
Examples
- At present greco is regarded as one of the most valuable methods of radar cross section ( rcs ) computation in the high - frequency region . depending on these conditions , several researches have been completed in this paper : firstly , calculating rcs of complex conducting targets has been accomplished by greco method . the high - frequency rcs of targets are obtained through physical optics ( po ) and incremental length diffraction coefficients ( ildc ) respectively
本论文做了以下研究工作：首先，实现了运用greco方法计算了高频区理想导体复杂目标的雷达散射截面( rcs ) ，分别应用了物理光学法( po )和增量长度绕射系数法( ildc )计算了目标的面元和棱边的电磁散射，最后综合面元与棱边的散射效应得到目标的总rcs 。 - Incremental length diffraction coefficients ( ildc ) is adopted to calculate the contribution of edge diffraction . in order to improve the accuracy of calculation , multi - scattering is discussed , based on the two former contributions and ray - tracing method . geometrical optics ( go ) and physical optics ( po ) are used to calculate the multi - reflection between facets and facets
对于镜面反射采用物理光学法计算其散射贡献，结合基于面元的目标模型的表示，采用离散的积分形式，将面电流积分化简为线积分，简化计算复杂度；对于边缘绕射，运用增量长度绕射系数理论计算目标边缘绕射场；在多次反射中，则以光线跟踪方法为基础，采用几何光学、物理光学相结合的方法分析考虑多次散射场。