Design and Realization of Ionosphere TEC DEMO

Ionosphere delay correction is widelly measured with the total electon content(TEC).Existing ionosphere TEC nowcasting system is difficult to characterize the TEC over china.While lays emphasis on the large-scale description of global TEC,considering the particularity and complexity of ionosphere over China,the paper constrcucted independent experimental TEC nowcasting system,which provided ionosphere correction for single-frequency users of the navigation positioning and remoted sensing systems based on satellite.Using GPS data from Chinese crust deform monitoring net and the language of matlab GUI,the paper presented the algorithm of polynomial fitting for single station located in the middle-high latitude.The emphasis was on the multi-stations technique of international reference ionosphere as transport model and latitude as weight factor.The relevant results show that the system is characteristic of convenient operation and reasonabel algorithm,which provides instructive information for the furture practical nowcasting system.