从射电天文观测数据反演电离层行扰的相速

AN INVERSION ANALYSIS IN DETERMINING THE PHASE VELOCITY OF TIDs BASED ON RADIO ASTRONOMICAL OBSERVATION

本文结合ＴＩＤｓ的形成机制及其测量技术，对它的传播特性作了有益于测量的讨论，指出：（１）ＴＩＤｓ是由两个正交波组成；（２）测量电子总含量所表征的ＴＩＤｓ与测量电子浓度所表征者同样有效．据此导出了从测量数据反演其相速的公式，并对波幅的抑制效应作了讨论．

Considering the generation mechanisms of the atmospheric gravity waves and measurement techniques for TIDs, some useful rules for explaination of the measurements are drawn. It is shown that: TIDs consist of two harmonic waves which are orthogonal to each other, and both the measurement techniques for TIDs i.e. the total electron content measurement and the electron density measurement are equally effective. Accordingly inversion formulas for determination of the phase velocity of TIDs from radio astronomical data are derived, and the suppressing effects on wave amplitude are discussed.