提出了两支包含不同平行折射率N‖的低杂波协同注入时电流驱动的简单模型,并利用射线追踪方程和并行计算技术,对其中高N‖低杂波对电流驱动的影响进行了数值模拟,结果发现包含高N‖的波谱分量对电流驱动的增益很可观。这个结论在一定程度上解释了实验上早已发现却一直被争论着的“谱间隙”现象,同时暗示着在进行实验结果与理论值的比较时,对低杂波的波谱取平均值并不能代表整个波谱的实际作用。 Two simple models of current-driven low-clutter co-injection with different parallel refractive index N‖ are proposed. The effects of the high N∥ low clutter on the current drive are numerically calculated using the ray tracing equation and the parallel computing technique The simulation results show that the spectral components containing high N | are significant for the current-driven gain. This conclusion explains, to a certain extent, the “spectral space” phenomenon that has long been controversial in the experiment. It also implies that when the experimental results are compared with the theoretical values, the spectra of the low clutter are averaged Can not represent the actual role of the entire spectrum.