TY JOUR TI “Waveguide” Effect of Ultrawideband Signal Indoor Propagation KW ultrawideband KW signal propagation KW two-ray reflection model KW Vvedensky formula KW chaotic signal JO Infocommunications and Radio Technologies AU Andreyev, Y.V. AU Petrosyan, M.M. PY 2022 IS PB Federal State Educational Institution of Higher Education Sevastopol State University