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250 MHz/GHz scintillation parameters in the equatorial, polar and auroral environments by Basu, Santimay. is a nonfiction available to read on EtoBox.

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Ionospheric scintillation effects encountered in the equatorial anomaly crest, polar cap and auroral regions have been contrasted to provide information for the design and evaluation of the performance of satellite communication links in ghese regions. The equatorial anomaly region is identified as the most disturbed irregularity environment where the amplitude and phase structures of VHF/L-band scintillations are primarily dictated by the strength of scattering rather than ionospheric motion. In the anomaly region, the spectra of intense amplitude scintillations at VHF and L-band are characterized by uniform power spectral density from the lowest frequency (10 MHz) to 4 Hz at VHF and to 1 Hz at L-band and steep rolloff at higher fluctuation frequencies with power law indices of -5 to 07. Such structures are compatible with intensity decorrelation times of 0.1 and 0.3 sec at VHF and L-band frequencies, respectively. The phase spectra are described by power law variation of psd with frequency with typical spectral indices of -2. 4. The strong scattering at VHF induces extreme phase rates of 200 deg. in 0.1 sec. The 90th percentile values of rms phase deviation at 250 MHz with 100-se

Who reads 250 MHz/GHz scintillation parameters in the equatorial, polar and auroral environments?

Author

Basu, Santimay.

Publisher

Air Force Geophysics Laboratory, Air Force Systems Command, United States Air Force, 1986.

Published

1986

Language

EN

Category

nonfiction