【摘要】 在穿越电离层的电波传播中，在传播路径上，不但电子浓度是变化的，而且遇到的不均匀体的漂移速度也是变化的。在多次散射理论下，利用多重相位屏近似以及电子浓度起伏横向自相关函数的二次函数近似，可以得到同时考虑以上效应时电波的互相关函数的解折表达式。通过与多站接收测量得到的互相关函数的比较，可以得到不均匀体漂移速度沿路径的分布。利用得到的互相关函数，可以得到不均匀体漂移速度的不均匀分布对电波的影响。更多还原

【Abstract】 The transionospheric wave always encounters a variable background electronic density and variable drift velocity of irregularities along the propagation path. Under the multiple chattering theory, by using the multiple screen method and quadratic structure function approximation. One can get tile analytic solution of two-frequency mutual coherence function considering the above generalities. Compared with the mutual coherellce function calculated from spaced-receiver scintillation measurements, the drift velocity function with respect ic the propagation path can be found. Thus the effects of the nonuniform drift velocity on the transionospheric wave can be derived by using the mutual coherence function.更多还原