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Method of extraction of chirp signal of ionosonde in the frequency domain based on the broadening propagation modes

A. E. Nedopekin

Mari State University


The paper is received on September 28, 2015, after correction - on October 14, 2015


Abstract. The article describes a method for isolating the signal chirp Ionosonde in the frequency domain. The method takes into account that the mode of ionospheric propagation contains readings that are not abnormal for the given sample. The method is based on a two-stage sampling censoring based on the criterion of abnormal discharge readings and threshold criteria, taking into account the empirical evaluation of the broadening of  the mode.

Key words: ionosphere, extraction of signal, short-wave channel, time-frequency dispersion, randomly inhomogeneous medium.