桂林地区GPS电离层闪烁特征分析  

Analysis of the features of GPS ionospheric scintillations in Guilin

作　　者：祁威[1] 邹玉华[2] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004 [2]桂林电子科技大学电子工程与自动化学院,广西桂林541004

出　　处：《桂林电子科技大学学报》2012年第6期451-455,共5页Journal of Guilin University of Electronic Technology

基　　金：国家自然科学基金(41064003)

摘　　要：为了研究桂林地区GPS电离层闪烁特征,利用2011年1月至2012年3月的GPS电离层闪烁监测数据,分析了幅度闪烁的逐月变化特征和发生的地方时、方位角。结果表明,幅度闪烁主要发生在春秋季,且秋季幅度闪烁的发生频率和强度均比春季大。此外,幅度闪烁均发生在地方时19点至次日4点桂林上空的南部地区,同时伴随相位闪烁和TEC耗空。In order to study the features of GPS ionospheric scintillations in Guilin, the data recorded by GPS iono spheric scintillation monitor from January 2011 to March 2012 were used to analyze the month-to-month, local time, and azimuth characteristics of GPS amplitude scintillations. The results show that amplitude scintillations oc cur mostly in spring and autumn, but the occurrence frequency and intensity in autumn are larger than those in spring. Amplitude scintillations only took place from LT19 in the evening to LT4 in the morning of the next day, and they are observed mainly in the south of Guilin. Moreover, amplitude scintillations always occur simultaneously with phase scintillations and TEC depletions.

关 键 词：桂林 GPS电离层 幅度闪烁 

分 类 号：P352.7[天文地球—空间物理学]