Studies on the inter-relation of Ku-band scintillations and rain attenuation over an Earth-space path on the basis of their static and dynamic spectral analysis

被引：19

作者：

Adhikari, Arpita ^{[1
]}

Maitra, Animesh ^{[1
]}

机构：

[1] Univ Calcutta, Inst Radio Phys & Elect, SK Mitra Ctr Res Space Environm, Kolkata 700009, India

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2011年 / 73卷 / 04期

关键词：

Tropospheric scintillations; Rain attenuation; Power spectral analysis; Wavelet analysis; TROPOSPHERIC SCINTILLATION; AMPLITUDE SCINTILLATIONS; CLEAR-AIR; PREDICTION; MODEL; INTENSITY; TURBULENCE;

D O I：

10.1016/j.jastp.2010.11.010

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

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. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：516 / 527

页数：12

共 39 条

[11]

Kaiser G., 1994, A Friendly Guide to Wavelets

[12] TROPOSPHERIC SCINTILLATION IN THE 14/11-GHZ BANDS ON EARTH-SPACE PATHS WITH LOW ELEVATION ANGLES [J].