Title :
Solution of lightning intensity distance distribution reconstruction problem by using the Schumann resonance signal
Author_Institution :
Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov, Ukraine
Abstract :
The inverse problem solution for revealing total worldwide lightning intensity and its distance distribution based on decomposition of average background Schumann resonance (SR) spectra is considered. The developed one-site technique can be applied without invoking any preliminary knowledge about spatial structure of the world thunderstorm activity. The technique allows a reduction of the influence of additive interference occurring in experimental measurements. Apart from average electric and magnetic field power spectra for the inverse problem solution it is suggested to use their linear combinations emphasizing the distance dependence and basic SR peaks. The influence of errors in source spectra and propagation parameters on recovered lightning intensity and its distance profile has been studied numerically
Keywords :
Earth-ionosphere waveguide; inverse problems; ionospheric electromagnetic wave propagation; lightning; radiowave propagation; resonance; signal reconstruction; spectral analysis; ELF band; Earth-ionosphere waveguide; Schumann resonance signal; additive interference; average background Schumann resonance spectra; average electric field power spectra; average magnetic field power spectra; distance dependence; inverse problem solution; lightning intensity distance distribution reconstruction; one-site technique; propagation parameters error; radiowave propagation; source spectra error; Africa; Asia; Earth; Equations; Least squares methods; Lightning; Magnetic fields; Signal analysis; South America; Strontium;
Conference_Titel :
Mathematical Methods in Electromagnetic Theory, 2000. MMET 2000. International Conference on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6347-7
DOI :
10.1109/MMET.2000.890505
