基于卡尔曼滤波技术,实现三频信标数据资料反演,获得二维的电离层电子密度分布。通过数值仿真分析,验证算法的可靠性,并对背景协方差矩阵的水平相关因子和垂直相关因子以及台站分布等因素进行分析研究,探索它们对电离层电子密度反演效果的影响,得到了相关结论。
In this paper, a tri-band beacon data inversion method based on Kalman fil- ter technology has been developed to retrieve a two-dimension ionospheric electron den- sity distribution. Through numerical simulation, we verify the reliability of the algorithm, analyze the horizontal related factor and vertical related factor of background covariance matrix, distribution of the receivers, and so on. We discuss their influence on ionospheric electron density inversion, and obtain some related conclusions.