Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia

The East coast of Peninsular Malaysia receives a strong wind speed, heavy rain and high humidity during the Northeast monsoon. The Malaysian Meteorological Department claims that the wind speed during the Northeast season could reach 55.56 km/h or more. This strong wind speed and heavy rain could co...

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Main Authors:	Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri, Roslan Umar, Zainol Abidin Ibrahim
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13067/ http://journalarticle.ukm.my/13067/ http://journalarticle.ukm.my/13067/1/21%20Sharifah%20Nurul%20Aisyah%20Syed%20Zafar.pdf

id	ukm-13067
recordtype	eprints
spelling	ukm-130672019-06-20T14:48:34Z http://journalarticle.ukm.my/13067/ Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri, Roslan Umar, Zainol Abidin Ibrahim, The East coast of Peninsular Malaysia receives a strong wind speed, heavy rain and high humidity during the Northeast monsoon. The Malaysian Meteorological Department claims that the wind speed during the Northeast season could reach 55.56 km/h or more. This strong wind speed and heavy rain could contribute to the attenuation of radio signals. This paper investigated the relationship between wind speed (km/h) and radio signal strength, RSS (dBm). The statistical correlation was employed to identify the correlation value and strength between them. The wind speed and RSS were collected during wet and dry seasons at Kusza Observatory, while the Spectrum analyser was used for measuring RSS (dBm) and the weather station for wind speed (km/h). The result showed that the wet season has strong and significant correlation compared to the dry season. Frequencies of 382.5 MHz, 945 MHz and 2160 MHz with correlation values of r = -0.583;-0.631 and -0:514, respectively, showed strong, negative and significant correlations with wind speed in the wet season. As for the dry season, only a frequency of 382.5 MHz showed a strong, positive and significant correlation with r = 0.555, while small and medium for others. This finding is useful to a radio astronomer to help determine the best period for radio astronomy observation with the lowest interference considering the weather in the East Coast of Peninsular Malaysia. Besides, this finding benefits a spectrum of users involved in mobile telecommunication, wireless internet, radio TV transmission and satellite broadcasting. Penerbit Universiti Kebangsaan Malaysia 2019-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13067/1/21%20Sharifah%20Nurul%20Aisyah%20Syed%20Zafar.pdf Sharifah Nurul Aisyah Syed Zafar, and Nor Hazmin Sabri, and Roslan Umar, and Zainol Abidin Ibrahim, (2019) Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia. Sains Malaysiana, 48 (1). pp. 183-189. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil1_2019/KandunganJilid48Bil1_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The East coast of Peninsular Malaysia receives a strong wind speed, heavy rain and high humidity during the Northeast monsoon. The Malaysian Meteorological Department claims that the wind speed during the Northeast season could reach 55.56 km/h or more. This strong wind speed and heavy rain could contribute to the attenuation of radio signals. This paper investigated the relationship between wind speed (km/h) and radio signal strength, RSS (dBm). The statistical correlation was employed to identify the correlation value and strength between them. The wind speed and RSS were collected during wet and dry seasons at Kusza Observatory, while the Spectrum analyser was used for measuring RSS (dBm) and the weather station for wind speed (km/h). The result showed that the wet season has strong and significant correlation compared to the dry season. Frequencies of 382.5 MHz, 945 MHz and 2160 MHz with correlation values of r = -0.583;-0.631 and -0:514, respectively, showed strong, negative and significant correlations with wind speed in the wet season. As for the dry season, only a frequency of 382.5 MHz showed a strong, positive and significant correlation with r = 0.555, while small and medium for others. This finding is useful to a radio astronomer to help determine the best period for radio astronomy observation with the lowest interference considering the weather in the East Coast of Peninsular Malaysia. Besides, this finding benefits a spectrum of users involved in mobile telecommunication, wireless internet, radio TV transmission and satellite broadcasting.
format	Article
author	Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri, Roslan Umar, Zainol Abidin Ibrahim,
spellingShingle	Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri, Roslan Umar, Zainol Abidin Ibrahim, Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
author_facet	Sharifah Nurul Aisyah Syed Zafar, Nor Hazmin Sabri, Roslan Umar, Zainol Abidin Ibrahim,
author_sort	Sharifah Nurul Aisyah Syed Zafar,
title	Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
title_short	Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
title_full	Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
title_fullStr	Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
title_full_unstemmed	Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia
title_sort	radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at east coast of peninsular malaysia
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13067/ http://journalarticle.ukm.my/13067/ http://journalarticle.ukm.my/13067/1/21%20Sharifah%20Nurul%20Aisyah%20Syed%20Zafar.pdf
first_indexed	2023-09-18T20:04:01Z
last_indexed	2023-09-18T20:04:01Z
_version_	1777407037607510016

Radio frequency interference on nearby radio astronomical lines: relationship between wind speed and radio signal strength measured at East Coast of Peninsular Malaysia

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