00839naa#a2200229#i#450# EN\\bibl\22243 20260312004333.4 2500-0535 20180629b2018####ek#y0engy0150####ca ENG 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 6 с. Journal article local Инженерное дело. Техника в целом. Транспорт. 62 ENG Ponomarchuk Sergey Nikolaevich Grozov Viktor Petrovich Kotovich Galina Vasilyevna Kurkin Vladimir Ivanovich Penzin Maksim Sergeevich ras.editorum.ru