1-Minute Integrated Rain Rate Statistics Estimated From Tropical Rainfall Measuring Mission Data

Aris, Nor Azlan Mohd; Luini, Lorenzo; Din, Jafri; Lam, Hong Yin

doi:10.1109/lawp.2013.2243103

Cited by 7 publications

(2 citation statements)

References 10 publications

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“…In addition due to ITU-R recommendation the factor of elevation angles should be high to offer clear line of sight signal paths and low propagation delay [6]. The combinations of the gains of both communication system satellite and terrestrial and avoid all the drawbcks of both of them that make the high altitude platforms (HAPs) is considerable as a unique alternative in wireless communication [11,13]. Due to all benefits that offered by a new communication/telecommunication technology (HAPs) as a promising system that an effective balance to the current communication system.…”

Section: Advantages Of Haps Over Existing Terrestrial and Satellite Tmentioning

confidence: 99%

Measurements to design a coverage area by using high altitude platform systems

Johni¹

2020

TELKOMNIKA

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This paper proposes the principles of how to design UMTS coverage area for Baghdad city the capital of Iraq country as a case study that occupy area about 204.2 km², by using one of the new technology for providing two wireless bands which are narrowband and broadband communication services as well as for broadcasting services issues with either airships or airplanes techniques which is named HAPs, Viewed from its altitude, HAPs floats within the stratosphere layer in the airspace, positioned between satellite and terrestrial platforms. This study also cosidered the affect of interference with the available broadband technology. It will start with brief introduction for HAPS with its advantages, comparison between HAPS system and other services and specify requirements for design. Such as, enumerate and find the center of coverage area to calculate the coordinates. Then, design the coverage area for the city, and find the radius, elevation angle, and the position of earth stations which will connect HAPS with other networks and all other services location depending on latitude and longitude, finally the reduction of interference technique.

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Section: Advantages Of Haps Over Existing Terrestrial and Satellite Tmentioning

confidence: 99%

Measurements to design a coverage area by using high altitude platform systems

Johni¹

2020

TELKOMNIKA

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“…For the prediction of rain attenuation, accurate knowledge of 1-min integrated CCDF of rain rate is required as recommended by Series (2015). But difficulty to obtain such short interval rain rate have forced researcher worldwide to find prediction method that shall be able to predict local rain rate characteristics (Aris et al 2013). Paper proposed a prediction model based on the rainfall data collected by Korea Meteorological Administration (KMA) which has developed and operated a digital system for collecting and storing rainfall data at 1-min interval since 2004.…”

Section: Introductionmentioning

confidence: 99%

Rain rate modeling of 1-min from various integration times in South Korea

2016

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Rain plays a major impairment factor for propagation of electromagnetic waves in atmosphere for systems operating at frequencies above 10 GHz. Several effects are noted such as depolarization, scintillation, interference due to scattering and extra attenuation which seems to increase with frequency. To mitigate its effect in satellite communication, knowledge of local rainfall statistics is necessary which act as milestone for design of radio link. Rain attenuation is best visualize by the 1-min rainfall rate statistic but the measurement of this rain rate distribution is rare on a worldwide basis and observation of rain rate are done with longer integration times typically 30 min or more. In this paper, efforts have been made to develop model that can convert rain rate complementary cumulative distribution function to shorter integration times. The average relative error margin of about 5, 14, 43, 71 and 115 % are noted for 5 to 1-, 10 to 1-, 20 to 1, 30 to 1- and 60 to 1-min respectively from ITU-R P.837-6 method which have been analyzed in further section of this article. The empirical natures of conversion methods as such Segal method, Burgueno’s method, Chebil and Rahman method and Logarithmic model are studied along with the proposed new model that seems to be applicable in derivation of 1-min rain rate of the South Korea rain rate statistics. International Telecommunication Union-Radio communication Sector (ITU-R) has developed a recommendation ITU-R P.837-6 that enables the user to estimate the local 1-min rainfall rate statistical distribution which is compared with calculated 1-min rain rate distribution from experimental 1-min rainfall accumulation. Unfortunately, ITU-R P.837-6 estimated 1-min values show greater error percentages. In order to get better approximation of local 1-min rain rate estimation, a novel method is proposed and it’s efficiency have been compared with rainfall rate statistics obtained from nine different locations in the South Korea.

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The challenge of using the W band in satellite communication

Riva

Capsoni

Luini

et al. 2013

Satell Commun Network

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This contribution outlines the scenario of the expected atmospheric impairments, which affect a satellite radio link\ud operating in the W band, as derived by the present theoretical and experimental knowledge. The paper discusses\ud the contributions to signal fade due to gases, clouds, scintillation and rain (with emphasis also on the impact of the\ud hydrometeor size distribution), as well as to the depolarization of the electromagnetic waves. The main objective is\ud to assess the constraints to face in the design of a satellite telecommunication system operating in the W band

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1-Minute Integrated Rain Rate Statistics Estimated From Tropical Rainfall Measuring Mission Data

Cited by 7 publications

References 10 publications

Measurements to design a coverage area by using high altitude platform systems

Measurements to design a coverage area by using high altitude platform systems

Rain rate modeling of 1-min from various integration times in South Korea

The challenge of using the W band in satellite communication

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