【摘要】 输电线谐波辐射已成为近地空间环境的一种人为污染源.介绍了磁层中输电线谐波辐射现象的研究历史与现状,涉及到与其相关的地基观测和天基观测结果,以及对其形成机理所开展的定性和定量研究等.特别介绍了近年来利用DEMETER地震电磁卫星观测到的输电线谐波辐射现象.根据现有的研究结果,提出一些尚未解决的问题.随着我国电网的发展,以及地震电磁监测试验卫星的研制和发射,研究我国上层空间的输电线谐波辐射现象具有重要意义.更多还原

【Abstract】 The power line harmonic radiation(PLHR) becomes a man-made pollution source to the near-Earth space.Both the research history and present status of PLHR were introduced.The research involves the observations of such phenomenon on the ground and onboard satellites,and the qualitative and quantitative analysis of its generation mechnism.Especially,the PLHR observed recently on DEMETER satellite were introduced.Based on the present research result,some unsolved problems were put forward.With the development of electrical industry and the launch of the testing satellite monitoring seismic electromagnetic signals in China,PLHR in upper space needs to pay close attention.更多还原