Scintillation measurement on Ku-band satellite path in tropical climate

Dao, Hassan; Rafiqul, Islam Md.; Chebil, Jalel; Al-Khateeb, Khalid A. Saeed

doi:10.1109/rfm.2013.6757244

Cited by 3 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ITU-R Model P.618-11 is best suited for predictions in the elevation angle from 4 o -32 o working at the frequency range of (7-14) GHz and antenna diameter ranges from 3 to 36metres [12]. This model is based on the estimation of averages scintillation intensity over a period of one month and relative humidity [23]. The long-term scintillation variance is expressed as N wet as a function of relative humidity (H) and surface temperature (t) [13].…”

Section: Itu-r Modelmentioning

confidence: 99%

Estimation of Cumulative Distribution of Scintillation Effect on Ku Band Frequencies for One of the Tropical Regions Using Various Models

Susanto¹,

Sentot²,

Mulia³

et al. 2018

JESTR

View full text Add to dashboard Cite

Any wireless signal travelling in free space undergoes degradation due to the effects of the atmosphere that are naturally created in its pathway. Amongst all the degradation3 effects scintillation is significant at elevation angles above 5 degrees and also in tropical regions. Scintillation is mainly caused due to the rapid fluctuations in the refractive index of the layers of the atmosphere. Tropospheric scintillation is significant at frequencies above 3GHz. Ionosphere acts as a transparent layer above 10 GHz Tropospheric scintillation is receiving more attention because of the demand for higher bandwidth due to the congestion on the C and Ku bands. The rapid fluctuations induce variations in the received amplitude of the signal which decreases the quality of the signal. For systems with low elevation angle and the link operating with a frequency above 10GHz the effect of tropospheric scintillation is to be taken in to consideration. So, in this paper the effect of tropospheric scintillation is estimated for a Ku band beacon signal whose receiver is installed at K.L. University at a frequency of 11.7GHz. The scintillation amplitude is estimated using the beacon data and also using models that suit the tropical region. By comparing the scintillation amplitudes derived from the models and the with the one derived using beacon data, the best model that fits this geographical location is found which is the Otung model.

show abstract

Section: Itu-r Modelmentioning

confidence: 99%

Estimation of Cumulative Distribution of Scintillation Effect on Ku Band Frequencies for One of the Tropical Regions Using Various Models

Susanto¹,

Sentot²,

Mulia³

et al. 2018

JESTR

View full text Add to dashboard Cite

show abstract

“…These correspond to October-November, December-March, April-May and June-September [2], [3]. A few previous researchers studied the effect of seasonal variation on clear sky scintillation in Asian monsoon region [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Seasonal and Diurnal Variation on Tropospheric Scintillation at Ku-Band in Tropical Climate

Elshami

Din

2016

IJECE

View full text Add to dashboard Cite

Tropospheric scintillation is a rapid fluctuation of the received signal amplitude which can cause propagation impairments that affect satellite communication systems operating above 10 GHz. Scintillation data was collected in Equatorial Johor Bahru, Malaysia, based on a one-year Ku-band propagation measurement campaign, utilizing MEASAT-1 Satellite with an antenna elevation angle of 75.61°. This work concentrates on the probability density function (PDF) of diurnal variations of clear sky scintillation variance analyzed on an hourly basis. Besides, seasonal variation of scintillation amplitude has been presented in this paper. From the results, it is concluded that clear sky scintillation variance is likely to occur during morning and afternoon periods. Moreover, clear sky scintillation amplitude of the South-West monsoon shows a relatively higher comparing with others monsoon seasons. Hence, signal attenuation based on seasonal and diurnal information is of great interest for the system designers to appropriately design fade margin.Tropospheric scintillation is a rapid fluctuation of the received signal amplitude which can cause propagation impairments that affect satellite communication systems operating above 10 GHz. Scintillation data was collected in Equatorial Johor Bahru, Malaysia, based on a one-year Ku-band propagation measurement campaign, utilizing MEASAT-1 Satellite with an antenna elevation angle of 75.61°. This work concentrates on the probability density function (PDF) of diurnal variations of clear sky scintillation variance analyzed on an hourly basis. Besides, seasonal variation of scintillation amplitude has been presented in this paper. From the results, it is concluded that clear sky scintillation variance is likely to occur during morning and afternoon periods. Moreover, clear sky scintillation amplitude of the South-West monsoon shows a relatively higher comparing with others monsoon seasons. Hence, signal attenuation based on seasonal and diurnal information is of great interest for the system designers to appropriately design fade margin.

show abstract