Title :
Direction finding of magnetospheric VLF/ELF waves based on the simultaneous measurement of multiple field components
Author :
Hayakawa, M. ; Shimakura, S. ; Shimizu, M. ; Hattori, K. ; Iwama, N.
Author_Institution :
Univ. of Electro-Commun., Tokyo, Japan
Abstract :
The authors report on an attempt to determine the wave energy distribution at the ionospheric base by using the simultaneous recording of three field components (B/sub x/, B/sub y/, and E/sub z/) observable on the ground. They present inversion techniques to find how the wave energy density is distributed at the ionospheric base by using the observed fields. The inversion methods proposed are used to estimate the wave distribution functions of magnetospheric VLF waves on the basis of simultaneous measurements of multiple electromagnetic field components.<>
Keywords :
electric field measurement; magnetic field measurement; magnetospheric electromagnetic wave propagation; radio direction-finding; radiowave propagation; ELF waves; EM field measurement; direction finding; inversion techniques; ionospheric base; magnetospheric VLF waves; multiple field components measurement; observed fields; radio waves; simultaneous recording; wave distribution functions; wave energy distribution; Distribution functions; Entropy; Geophysical measurement techniques; Ground penetrating radar; Kernel; Magnetic field measurement; Magnetosphere; Plasma measurements; Plasma waves; Solar power generation;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221958
