本文简要地回顾了“磁窗”减轻再入通讯中断的机理。推导出线极化波,园极化波穿透磁等离子体薄层时,场量的传输矩阵。给出了功率反射系数及透射系数表达式。通过这种磁窗理论模型,模拟算出了为减轻或消除再入通讯中断所需要的磁场强度。并通过激波管上进行的磁窗模拟试验,证实了这一结论。 This article briefly reviews the “magnetic window” to reduce the re-entry communication interruption mechanism. Derived from the line polarized wave, the polarization of the wave through the magnetic plasma when the thin layer, the transfer matrix of the amount of field. The expressions of power reflection coefficient and transmission coefficient are given. Through this magnetic window theoretical model, the simulation calculates the magnetic field strength required to reduce or eliminate the re-entry communication interruption. And through the shock tube on the magnetic window simulation test, confirmed this conclusion.