使用COSMIC数据分析和管理中心(COSMIC data analysis and archive center,CDAAC)提供的level 1b数据中的掩星事件表和观测路径上的绝对电子含量资料,在假设电离层各层电子密度相同的前提下,对Abel积分公式进行离散化,并使用最小二乘方法求解。其结果与COSMIC所提供的电离层廓线产品符合度较高,且二者的绝对误差的平均值和标准差分别为-1.52×103el/cm3和6.61×103el/cm3,相对误差的平均值和标准差分别为0.5%和2.9%。所使用的方法计算简便,并且精度与COSMIC产品一致。 Using the table of occultation events in the level 1b data and the absolute electron content data on the observed path provided by the COSMIC data analysis and archive center (CDAAC), on the assumption that the electron density is the same at all levels of the ionosphere , The Abel integral formula is discretized and solved using the least square method. The results are in good agreement with the ionospheric profiles provided by COSMIC, and the mean and standard deviation of the absolute error of the two are -1.52 × 103el / cm3 and 6.61 × 103el / cm3, respectively. The average relative errors and The standard deviations were 0.5% and 2.9% respectively. The method used is computationally simple and accurate with the COSMIC product.