TY CONF TI RADIO-ELECTRONIC DEVICES IN ASTRONOMY: THE SEARCH FOR EXTRATERRESTRIAL SIGNALS AND SETI KW radio-electronic devices KW SETI KW radio astronomy KW extraterrestrial signals KW radio telescopes KW spectral analysis KW electromagnetic waves JO PROBLEMS AND PROSPECTS IN SYSTEMS AND PROCESS MODELING AU Ilyin, E.S. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov