Numerical Analysis of Artificial Electron Heating Effects on Polar Mesospheric Winter Echoes  

作　　者：Safi Ullah Hai-Long Li Abdur Rauf Lu-Yao Fu Mao-Yan Wang Lin Meng 

机构地区：[1]School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054

出　　处：《Journal of Electronic Science and Technology》2020年第3期287-295,共9页电子科技学刊（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grants No. 61671116 and No. 11905026;Fundamental Research Funds for the Central Universities under Grants No. ZYGX2019Z006 and No. ZYGX2019J012。

摘　　要：In this paper,an analytical model is used to analyze the modulated polar mesospheric winter echoes(PMWE).The winter parameters were introduced to simulate the effects of different parameters during the artificial electron heating of PMWE.The important role of the charged dust particle in the creation of PMWE is confirmed again.It is found that during the heating of PMWE,the increases of the dust size,dust charge,electron temperature,initial electron density,and ion-neutral collision frequency cause the increase of the electron density irregularity,and hence the PMWE strength.However,with increasing the dust density,the electron density irregularity and the PMWE strength decrease.

关 键 词：Artificial ionospheric heating electron density irregularities polar mesospheric winter echoes(PMWE) space plasma physics(numerical simulation) 

分 类 号：O441.1[理学—电磁学]