00550naa#a2200181#i#450# EN\\bibl\9799 20260309140429.1 2712-9640 20160617b2016####ek#y0engy0150####ca RUS RU Modeling of Doppler frequency shift in multipath radiochannels Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2016 6 с. Journal article local Penzin Maksim Sergeevich Ilyin Nikolay Viktorovich ras.editorum.ru