用时域有限差分法(FDTD)对高功率微波(HPM)大气传播进行数值仿真时,所要关心的仅是传播目标点HPM波形的分布,而传播过程中每一空间点不需要考虑,所以可将传播空间分段计算,在分段点处需要增加一个吸收边界,并将传播到该点的HPM保存下来,作为后继计算空间的源加入到其后一空间步,完成数据传递。通过这样循环处理可以达到节约计算时间和存储内存的目的,从而达到加速计算的目的。 When using FDTD to numerically simulate HPM atmospheric propagation, the only concern is the distribution of the HPM waveforms at the propagation target. However, each spatial point in the propagation process does not need to be considered. Therefore, Propagation space segment calculation, the need to add an absorption boundary at the segment point, and the HPM propagated to the point saved, as the source of subsequent computational space added to the next space step to complete the data transfer. Through this cycle of processing can achieve the purpose of saving computing time and memory, so as to achieve the purpose of accelerated computing.