Rain-Induced Scintillations and Attenuation of Ku-Band Satellite Signals at a Tropical Location

Adhikari, Arpita; Bhattacharya, Anup; Maitra, Animesh

doi:10.1109/lgrs.2011.2179004

Cited by 27 publications

(16 citation statements)

References 16 publications

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“…The co-polar channel is utilized to monitor signal level of the satellite signal experiencing attenuation and scintillations, and the cross-polar channel is used to monitor cross-polar enhancement of the signal indicating the depolarization effect. The detailed description of the receiving system has been described in our earlier papers [3,4,7]. An impact type of Disdrometer, collocated with the receiving system, is used for the ground based drop size distribution (DSD) and rain rate measurements.…”

Section: Experimental Observations and Discussionmentioning

confidence: 99%

“…The propagation effects, both in the extent and type, differ significantly at tropical location compared to that of temperate regions. Although, microwave propagation studies over earth-space paths have been carried out at several tropical locations [1][2][3][4][5][6] yet many distinctive phenomena having effects on the propagation of microwave signals are to be adequately investigated.…”

Section: Introductionmentioning

confidence: 99%

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Earth-space propagation through rain and associated tropospheric processes at a tropical location

Maitra

Adhikari

Sarkar

et al. 2014

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS)

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The propagation of satellite signals at frequencies above 10 GHz has been studied to investigate the characteristic features of tropical rain. The propagation effects, namely, attenuation, scintillation and depolarization caused by varying structures of rain have been investigated to indicate their interrelationship. The varying relationship between attenuation and scintillations indicates the evolution of turbulence during different types of rain events. Also, the rain-induced depolarization of the signal is related to rain attenuation in different manner during stratiform events, when the melting layer is present, than during convective events when large rain drops are mainly responsible for depolarization in the absence of melting layer.

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Section: Experimental Observations and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Earth-space propagation through rain and associated tropospheric processes at a tropical location

Maitra

Adhikari

Sarkar

et al. 2014

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS)

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“…Various measurements have been performed during Olympus and Italsat campaigns in Europe and as well as during other propagation campaigns in tropical climate [9] [10].…”

Section: Measurementsmentioning

confidence: 99%

Measurement and modelling of tropospheric scintillation in Ka/Q band

Vanhoenacker‐Janvier

Quibus

Rytir

et al. 2017

2017 11th European Conference on Antennas and Propagation (EUCAP)

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The purpose of this paper is to present the use of Numerical Weather Prediction software to generate 4Dmeteorological parameters for the characterization and simulation of tropospheric scintillation for geostationary and nongeostationary Earth-satellite links. A preliminary test has been performed against measurements at 30 degree elevation for a geostationary satellite link and an analysis of the turbulence characteristics on a low elevation Earth-space link has been proposed.

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“…Authors have extracted the scintillation amplitude in our region from beacon signal, but have used cut-off frequency, which is previously used in the research papers [4] [5]. Weather the cut-off frequency is suitable for our region or not is to be investigated [6]. The cut-off frequencies for our region is calculated using the measured scintillation fades.…”

Section: Introductionmentioning

confidence: 99%

Modification of ITU-R Parameters to Improve the Prediction of Tropospheric Scintillation for Tropical Regions

B¹,

Kotamraju²,

Kavya³

2018

IJET

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Scintillation is the rapid fluctuation of the received signal. It is caused by the variation in the refractivity structure of the atmosphere profile. This phenomenon leads to the signal degradation and is significant in low fade margin links and at low elevation angles. So, analyzing the scintillation intensity and its statistics are vital for a system designer to design an efficient system for the satellite communication link. This paper presents the methodology to extract the scintillation intensity from the raw beacon signal and comparison of ITU-R scintillation prediction model with the measured results to test its acceptability over tropical region. When compared with measured results, ITU-R model overestimates the scintillation fade. Hence the parameters of the time percentage factor are modified to obtain near fit to the measured results.

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Rain-Induced Scintillations and Attenuation of Ku-Band Satellite Signals at a Tropical Location

Cited by 27 publications

References 16 publications

Earth-space propagation through rain and associated tropospheric processes at a tropical location

Earth-space propagation through rain and associated tropospheric processes at a tropical location

Measurement and modelling of tropospheric scintillation in Ka/Q band

Modification of ITU-R Parameters to Improve the Prediction of Tropospheric Scintillation for Tropical Regions

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