Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio]
The intensity of radio waves received by radio telescopes is always not subject to human control. In the millimetre band, the propagation of the electromagnetic waves is severely affected by rain rate, dust particle size and drop size in the terms of attenuation, noise and depolarization. At the fre...
| Main Authors: | , , , , , |
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| Format: | Article |
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Malaysian Society of Analytical Sciences
2015
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| _version_ | 1796960697987366912 |
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| author | Umar, R. Sulan, S.S. Azlan, A.W. Ibrahim, Z.A. Wan Mokhtar, W.Z.A. Sabri, N.H. |
| author_facet | Umar, R. Sulan, S.S. Azlan, A.W. Ibrahim, Z.A. Wan Mokhtar, W.Z.A. Sabri, N.H. |
| author_sort | Umar, R. |
| collection | UM |
| description | The intensity of radio waves received by radio telescopes is always not subject to human control. In the millimetre band, the propagation of the electromagnetic waves is severely affected by rain rate, dust particle size and drop size in the terms of attenuation, noise and depolarization. At the frequency above 10 GHz, the absorption and scattering by rain cause a reduction in the transmitted signal amplitude which will lead to the reducing of the availability, reliability and performance on the communications link. In this study, the rain effect on radio signal has been investigated. Spectrum analyzer and weather stations were used to obtain the RFI level and rain rate data respectively. The radio frequency interference (RFI) pattern due to rain factor was determined. This will benefit radio astronomer in managing sites for radio observation for radio astronomy purposes. |
| first_indexed | 2024-03-06T05:48:32Z |
| format | Article |
| id | um.eprints-19517 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:48:32Z |
| publishDate | 2015 |
| publisher | Malaysian Society of Analytical Sciences |
| record_format | dspace |
| spelling | um.eprints-195172018-10-01T07:13:51Z http://eprints.um.edu.my/19517/ Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] Umar, R. Sulan, S.S. Azlan, A.W. Ibrahim, Z.A. Wan Mokhtar, W.Z.A. Sabri, N.H. Q Science (General) QC Physics The intensity of radio waves received by radio telescopes is always not subject to human control. In the millimetre band, the propagation of the electromagnetic waves is severely affected by rain rate, dust particle size and drop size in the terms of attenuation, noise and depolarization. At the frequency above 10 GHz, the absorption and scattering by rain cause a reduction in the transmitted signal amplitude which will lead to the reducing of the availability, reliability and performance on the communications link. In this study, the rain effect on radio signal has been investigated. Spectrum analyzer and weather stations were used to obtain the RFI level and rain rate data respectively. The radio frequency interference (RFI) pattern due to rain factor was determined. This will benefit radio astronomer in managing sites for radio observation for radio astronomy purposes. Malaysian Society of Analytical Sciences 2015 Article PeerReviewed Umar, R. and Sulan, S.S. and Azlan, A.W. and Ibrahim, Z.A. and Wan Mokhtar, W.Z.A. and Sabri, N.H. (2015) Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio]. Malaysian Journal of Analytical Sciences, 19 (5). pp. 1093-1098. ISSN 1394-2506, http://www.ukm.my/mjas/mjas2018/ |
| spellingShingle | Q Science (General) QC Physics Umar, R. Sulan, S.S. Azlan, A.W. Ibrahim, Z.A. Wan Mokhtar, W.Z.A. Sabri, N.H. Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title | Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title_full | Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title_fullStr | Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title_full_unstemmed | Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title_short | Radio frequency interference: The study of rain effect on radio signal attenuation = [Interferens frekuensi radio: Kajian kesan hujan pada pengecilan isyarat radio] |
| title_sort | radio frequency interference the study of rain effect on radio signal attenuation interferens frekuensi radio kajian kesan hujan pada pengecilan isyarat radio |
| topic | Q Science (General) QC Physics |
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