An accelerate method for the simulation of High-Power Microwave propagation through the atmosphere

In the simulation of High-Power Microwave (HPM) propagation in the atmosphere, the distribution of HPM at the target point is only need to be concerned, but its distribution of each points in space do not need to know, one can consider separate the propagation space first, add an absorbing boundary at the sub-point, save the HPM data at this point, and as a source for the follow-up calculation add to the subsequent step, completion of data transfer. By this cycle of processing will play a role of to save computing time and computing memory, so as to achieve the effect of accelerated.