The Effect of the Under-dense Magnetized Plasma on Electron Density Distribution and Field Profile

Propagation of a high frequency electromagnetic wave in under-dence plasma in presence of an external magnetic field is investigated. When a constant magnetic field perpendicular to the motion of electrons is applied, then the electrons rotate around the magnetic field lines and generate electromagnetic part in the wake with a nonzero group velocity. Using of the Maxwell equations and nonlinear differential equation for the electric field a direct one dimensional （ID） procedure for calculating wake equations are developed and the electric and magnetic field profile in the plasma are investigated.

人工电离层变态效应及其应用

阐述了电离层研究的重要性以及人工电离层变态的重要意义。重点介绍了人工电离层变态的方法和基本原理,人工电离层变态在对卫星隐身等方面的主要应用,国际上对人工电离层变态效应研究的历程、现状和重要研究计划。