P—D变换的偏心球模型修正计算方法

A Method of CalCulation of P—D Transformation through the Correction of the off—Centre Sphere Model

本文采用与地球球面非同心分布电离层模型修正电离层倾斜和水平电子浓度梯度。讨论在这种模型描述的水平电子浓度梯度的电离层传播环境下的 P-D 变换的计算方法。本文计算结果与射线追踪精确解结果基本一致,在 D_0>1000km 时,误差范围在2%以内。最后提供处理实际问题的工作思路。

In this paper,the ionosphere model of off—centre sphere that is used to correct the iono- spheric tilt and the ionospheric horizontal electron density gradient is presented.Under this mod- el,the method of calculation of P—D transformation is discussed.The results given by this method consist with that given by ray tracing method,the range of the error is with in 2% when D_0>1000km.The working idea processing the problems in practice are presented.