Title :
On possibility of Schumann resonance observations within industrial area
Author :
Shvets, A.V. ; Ivanov, V.K. ; Varavin, A.V.
Author_Institution :
Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov, Ukraine
Abstract :
Use of a high resolution ADC allowed us to embrace the dynamic range of both signal and powerful narrow-band interference and, on this basis, to implement a compensative real-time algorithm for suppression of narrow-band interference. The developed algorithm provides suppression of "wings" due to incommensurability of the time interval of a signal undergoing spectral analysis and a period of narrow-band interference. Preliminary results of observations of extremely low frequency (ELF) natural electromagnetic background (Schumann resonance) performed within urban areas are presented in the paper. We demonstrate the possibilities of both registration of average spectra of the Schumann resonance background signal and ELF-transients.
Keywords :
bandlimited signals; compensation; filtering theory; interference (signal); interference suppression; power system harmonics; spectral analysis; transients; 50 Hz; ELF-transients; Schumann resonance background signal; Schumann resonance observations; average spectra registration; compensation algorithm; extremely low frequency natural electromagnetic background; high resolution ADC; industrial area; narrow-band interference; narrow-band interference suppression; power-line harmonics; real-time algorithm; signal dynamic range; signal filtration; signal time interval incommensurability; spectral analysis; wings suppression; Dynamic range; Frequency; Geophysical measurement techniques; Ground penetrating radar; Interference suppression; Narrowband; Resonance; Signal resolution; Spectral analysis; Urban areas;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory, 2002. MMET '02. 2002 International Conference on
Conference_Location :
Kiev, Ukraine
Print_ISBN :
0-7803-7391-X
DOI :
10.1109/MMET.2002.1107039
