00838naa#a2200229#i#450# EN\\bibl\20544 20260310185801.2 2712-9640 20180629b2018####ek#y0engy0150####ca RUS RU Diagnostics of HF radio channel: based on data from backscatter ionospheric sounding by continuous chirp signal Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2018 7 с. Journal article local Инженерное дело. Техника в целом. Транспорт. 62 RUS Ponomarchuk Sergey Nikolaevich Grozov Viktor Petrovich Kotovich Galina Vasilyevna Kurkin Vladimir Ivanovich Penzin Maksim Sergeevich ras.editorum.ru