Physics
Scientific paper
Mar 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jastp..73..516a&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 73, Issue 4, p. 516-527.
Physics
Scientific paper
An attempt has been made to inter-relate simultaneously occurring rain attenuation and scintillations of Ku-band signals over an Earth-space path at a tropical location. The power spectral analysis has been carried out to determine required cut-off frequency of filtering to separate out rain attenuation and scintillation effects. The power spectra of low- and high-pass filtered time series of satellite signal level data exhibit respective slopes in frequency domain that support theoretical values. Furthermore, wavelet analysis reveals the variability of different modes of signal variations in time-frequency space and the two phenomena are related by means of their global wavelet spectra.
Adhikari Arpita
Maitra Animesh
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