电离层行进式扰动的多波场结构指多个电离层行扰事件同时存在时形成的电离层扰动复杂结构。电离层行进式扰动激发源的丰富多样性决定了相当一部分扰动以多波场的形式存在。但是，由相位混淆导致的观测困难，使得扰动的多波场观测此前仅限于个例。本申请人在已有工作基础上，计划发展新的数据处理方法，对电离层扰动多波场结构进行系统性观测，研究内容包括三方面：第一，研究分析大尺度电离层行进式扰动多波场结构的纬度分布和全球性分布特征，观测研究不同源激发的中尺度电离层行进式扰动的多波场传播区域性特征；第二，基于电离层扰动的多波场结构观测，研究电离层行进式扰动的相互作用及其机理，特别是扰动的共振相互作用及其在电离层中的反映；第三，通过火箭/导弹发射及浅表地震期间的中尺度电离层多波场扰动观测，研究多波场结构对应的激发源特征，并研究扰动的多波场事件对电离层形态和结构的影响。

The multi-wave structures of traveling ionospheric disturbances (TIDs) here refers to the complex wave structures in the ionosphere during the period that several TIDs occurre simutaneously in the same place. Due to the diversity of TIDs’ excitaion sources, a number of TIDs occur in the form of multi-waves. However, because it is diffcult to distinguish one TID from another, the multi-wave structures of TIDs were seldom reported previously. In this project, we planned to develop new method to peocess the observation data and do some systematic research on the multi-wave structures of TIDs. The research will focus on three points. First, we will investigate the latitudinal variation and global variaion of the multi-wave structures of large-scale TIDs. And we then study the multi-wave structures of medium-scale TIDs through investigating their regional properties. Next, based on the multi-wave observations, we plan to study the interaction among several TIDs when they were observed simutaneously and reveal the interaction mechanism. At last, based on the observation of multi-wave structures, we plan to research on the exciation properties of the source of TIDs such as the launch site and trajectory of rockets/missiles and the onset time of earthquakes. Through ionospheric model, we also plan to investigate the influence of multi-wave events on the structures of ionosphere.