利用北斗GEO卫星观测数据探测中尺度电离层行波扰动

Medium-Scale Traveling Ionospheric Disturbances Detection Using Observations of Compass GEO Satellite

根据GEO卫星的特点，给出了电离层扰动序列的提取方法以及扰动振幅、周期的获取方法，并根据实测的2012—04—16～2012—04—18的观测数据，对探测到的电离层扰动进行了初步分析。实验结果显示，1号GEO卫星在2014—0417T12：30左右探测到扰动，5号GEO卫星和4号GEO卫星分别在2012—04—17T18：50～2012-04—17T20：45和2012—14—18T06：00～2012-04—18T07：23探测到扰动，探测的电离层扰动发生时间及扰动的振幅、周期等传播特性与前人研究基本一致，而且提取的扰动序列不包含多谱勒效应的影响。

Compass Geostationary Earth Orbit （GEO） satellites observations are used to study mediumscale traveling ionospheric disturbances（MSTIDs）. Themethod to exactionospheric disturbances is presented and the way to acquire disturbance amplitude and period is given. Then we did preliminarily analyzes of the characteristics of detected MSTIDs using observation data measured form April 16 to 18, 2012. The experimental results show that MSTIDs could be detected during 12：30-14：00 on April 12 by 1st GEO satellite, during 18： 50-20：45 on April 18 by 5th GEO satellite and during 06.00-07：23 on April 18 by 4th GEO satellite. Since the occurrence time, amplitude, and period of the detected disturbances are consistent with previous studies, and the extracted ionospheric disturbance sequences are not influenced by Doppler Effect. , we can draw a conclusion that using Compass GEO satellite data to research MSTIDs is reasonable and has certain advantages when compared to GPS satellite data.