RT Journal Article ID 2424304b3e6951f5 A1 Nickolaenko, A. P. T1 WAVEFORMS OF NATURAL ELF RADIO SIGNALS JF Telecommunications and Radio Engineering JO TRE YR 2011 FD 2011-08-26 VO 70 IS 12 SP 1103 OP 1119 K1 Schumann resonance K1 Q-bursts K1 principal components AB We analyze waveforms of natural extremely low frequency (ELF) transient events. It is shown that model waveforms are observed with the wide band receiver at places with exclusively low level of industrial radio noise. In conclusion we describe extracting of natural ELF transient signal from under the industrial noise by using algorithm of singular spectral analysis. PB Begell House LK https://www.dl.begellhouse.com/journals/0632a9d54950b268,6acba76871f6c09c,2424304b3e6951f5.html