A Method for Automatic Inversion of Oblique Ionograms

In this study, a method is proposed to carry out automatic inversion of oblique ionograms extract the parameters and electron density profile ionosphere. The adopts quasi-parabolic segments (QPS) model represent Firstly, numerous candidate profiles corresponding vertical traces were, respectively, calculated synthesized by adjusting QPS model. Then, were transformed secant theorem Martyn’s equivalent path theorem. On other hand, image processing technology characteristics echoes adopted automatically scale key (the maximum observable frequency minimum group path, etc.) from ionograms. traces, whose close autoscaled parameters, selected as produce correlation with measured Lastly, algorithm searched best-fit trace comparing To test its feasibility, scaled these compared manual scaling results. preliminary results show that accuracy ordinary F2 layer is, about 91.98% 86.41%, which might be accurate enough for space weather specifications. It inspires us improve in future studies.