The software for processing and interpretation of sounding ionogram on base of digital chirp sounder
In our report we consider techniques and algorithms for secondary processing and interpretation of ionograms obtained with a help of chirp ionosonde operating in vertical and oblique sounding mode (VS and OS). The secondary processing of experimental ionograms is carried out on the base of primary data filtering with subsequent compression with a help of cellular automaton technique. Ionogram interpretation methods is based on modeling results for frequency dependences of propagation characteristics in the regime of long-term forecast and on results of experimental data processing. We also develop the algorithm for electron concentration profile restoration on the base of HFC selected tracks.