基于数据融合的电离层VTEC反演精度分析
Inversion Accuracy Analysis of Ionospheric VTEC Based on Data Fusion
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摘要: 随着空间目标活动和卫星导航系统的增多, 观测电离层数据的途径越来越多, 探测精度也越来越高. 在Kalman 滤波的基础上, 利用2016年的国际参考电离层(IRI-2016)模型中电离层垂直电子含量(Vertical Total Electron Content, VTEC), 结合地基反演得到的VTEC值, 利用数据融合算法提高电离层VTEC的近实时反演精度. 针对加拿大附近高纬度区域(130^ \circAbstract: With the increase of space target activities and satellite navigation systems, there are more and more ways to observe ionospheric data, and the detection accuracy is also higher and higher. Based on the Kalman filter, this paper uses the IRI-2016 ionospheric vertical total electron content (VTEC), and combined with the VTEC value obtained from the ground-based inversion, and the data fusion algorithm to improve the near-real-time inversion accuracy of the ionospheric VTEC. This paper observes the high-latitude area near Canada (130^ \circ
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