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1860797377774878720
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| building |
INTELEK Repository
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| collection |
Online Access
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| collectionurl |
https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072
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| date |
2015-11-05 10:36:55
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| format |
Restricted Document
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| id |
12474
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UniSZA
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| internalnotes |
1. Cohen J, Spoelstra, T., Ambrosini, R. and van Driel, W. (2005). CRAF handbook for radio astronomy. European Science Foundation. 2. John, A. (2013). Pyhsic Boundless Textbook: Chapter 23 Electromagnetic wave (online). https://www.boundless.com/physics/textbooks/boundless-physics-textbook/electromagnetic-waves-23 [15 March 2014]. 3. Abidin, Z. Z., Ibrahim, Z. A., Rosli, Z., Malim, S. F. F., Anim, N. M. and Noorazlan, N. (2012). An RFI Investigation for Setting Up a VLBI Station below 2.8 GHz in Malaysia. New Astronomy. 17: 61-64. 4. Abidin, Z. Z., Umar, R., Ibrahim, Z. A., Rosli, Z., Asanok, K. and Gasiprong, N. (2013). Investigation on Frequency Allocation for Radio Astronomy at the L Band. Publications of the Astronomical Society of Australia (PASA) 30 : 47-57. 5. Umar, R. Abidin, Z. Z, Ibrahim, Z. A, Rosli, Z. and Noorazlan, Z. (2014). Selection of radio astronomical observation sites and its dependence on human generated RFI., Research in Astronomy and Astrophysics 14: 241-248. 6. Hamidi, Z. S, N. N. and Shariff, N. N. M. (2014). Investigation of Radio Frequency Interference (RFI) Profile, and Determination of Potential Astronomical Radio Sources. International Letter of Chemistry, Physic and Astronomy 24: 43-49. 7. United States Environmental Protection Agency (2015). Overview of Greenhouse Gases. Access Online http://www.epa.gov/climatechange/ghgemissions/gases/co2.html 8. National Research Council, NRC (2010). Advancing the Science of Climate Change. National Research Council. The National Academies Press, Washington, DC, USA. 9. MCMC manual of ‘Spectrum Plan, 2006 MCMC manual of ‘Spectrum Plan, Malysian Communication and Multimedia Commission’ 2006. Resources Assignment Management Department, Access Online: http://www.mcmc.gov.my/what_we_do/spectrum/plan.asp. 10. Okhimamhe, A. A. and Okelola, O.F. (2013). Assesment of Carbon dioxide Emission at Road Junction in the Southes of Niger State, Nigeria, Alam Cipta, International Journal of Sustainable Tropical Design Research and Practice 6 (2): 59 – 71.
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6777-01-FH02-ESERI-15-04086.jpg
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| person |
norman
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oai_dc
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| resourceurl |
https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12474
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| spelling |
12474 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12474 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 Restricted Document Article Journal image/jpeg inches 1399 767 96 96 norman 79 79 2015-11-05 10:36:55 1399x767 6777-01-FH02-ESERI-15-04086.jpg UniSZA Private Access Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio] Malaysian Journal of Analytical Sciences Radio astronomy is a complementary to optical astronomy. Radio astronomy observation is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. In this study, weather factor that affected the Radio Frequency Interference (RFI) is investigated. An ambient carbon dioxide (CO2 ) concentration in the environment is determined to study the effect on radio signal up to 8GHz for radio astronomy purposes. The RFI pattern change against CO2 concentration is determined for one-hour observation time. The observations were conducted at KUSZA Observatory, East Coast Environmental Research Institute (ESERI) and UniSZA situated in Merang, Terengganu using spectrum analyser for RFI measurement and gas meter for CO2 concentration. The study findings found that for up to 600 ppm of CO2 concentration, there are no significant effect detected on radio signals. Thus, the radio astronomy observations may not affected. This study is very important for researchers in the radio astronomy field for determining the best location for radio telescope sitting for future research in radio astronomy. 19 5 Malaysian Society of Analytical Sciences Malaysian Society of Analytical Sciences 1065-1071 1. Cohen J, Spoelstra, T., Ambrosini, R. and van Driel, W. (2005). CRAF handbook for radio astronomy. European Science Foundation. 2. John, A. (2013). Pyhsic Boundless Textbook: Chapter 23 Electromagnetic wave (online). https://www.boundless.com/physics/textbooks/boundless-physics-textbook/electromagnetic-waves-23 [15 March 2014]. 3. Abidin, Z. Z., Ibrahim, Z. A., Rosli, Z., Malim, S. F. F., Anim, N. M. and Noorazlan, N. (2012). An RFI Investigation for Setting Up a VLBI Station below 2.8 GHz in Malaysia. New Astronomy. 17: 61-64. 4. Abidin, Z. Z., Umar, R., Ibrahim, Z. A., Rosli, Z., Asanok, K. and Gasiprong, N. (2013). Investigation on Frequency Allocation for Radio Astronomy at the L Band. Publications of the Astronomical Society of Australia (PASA) 30 : 47-57. 5. Umar, R. Abidin, Z. Z, Ibrahim, Z. A, Rosli, Z. and Noorazlan, Z. (2014). Selection of radio astronomical observation sites and its dependence on human generated RFI., Research in Astronomy and Astrophysics 14: 241-248. 6. Hamidi, Z. S, N. N. and Shariff, N. N. M. (2014). Investigation of Radio Frequency Interference (RFI) Profile, and Determination of Potential Astronomical Radio Sources. International Letter of Chemistry, Physic and Astronomy 24: 43-49. 7. United States Environmental Protection Agency (2015). Overview of Greenhouse Gases. Access Online http://www.epa.gov/climatechange/ghgemissions/gases/co2.html 8. National Research Council, NRC (2010). Advancing the Science of Climate Change. National Research Council. The National Academies Press, Washington, DC, USA. 9. MCMC manual of ‘Spectrum Plan, 2006 MCMC manual of ‘Spectrum Plan, Malysian Communication and Multimedia Commission’ 2006. Resources Assignment Management Department, Access Online: http://www.mcmc.gov.my/what_we_do/spectrum/plan.asp. 10. Okhimamhe, A. A. and Okelola, O.F. (2013). Assesment of Carbon dioxide Emission at Road Junction in the Southes of Niger State, Nigeria, Alam Cipta, International Journal of Sustainable Tropical Design Research and Practice 6 (2): 59 – 71.
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| spellingShingle |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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| summary |
Radio astronomy is a complementary to optical astronomy. Radio astronomy observation is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. In this study, weather factor that affected the Radio Frequency Interference (RFI) is investigated. An ambient carbon dioxide (CO2 ) concentration in the environment is determined to study the effect on radio signal up to 8GHz for radio astronomy purposes. The RFI pattern change against CO2 concentration is determined for one-hour observation time. The observations were conducted at KUSZA Observatory, East Coast Environmental Research Institute (ESERI) and UniSZA situated in Merang, Terengganu using spectrum analyser for RFI measurement and gas meter for CO2 concentration. The study findings found that for up to 600 ppm of CO2 concentration, there are no significant effect detected on radio signals. Thus, the radio astronomy observations may not affected. This study is very important for researchers in the radio astronomy field for determining the best location for radio telescope sitting for future research in radio astronomy.
|
| title |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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| title_full |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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| title_fullStr |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
|
| title_full_unstemmed |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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| title_short |
Radio frequency interference: The effect of ambient carbon dioxide (CO2) concentration on radio signal for radio astronomy purposes [Interferens frekuensi radio: Kesan kepekatan karbon dioksida (CO2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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| title_sort |
radio frequency interference: the effect of ambient carbon dioxide (co2) concentration on radio signal for radio astronomy purposes [interferens frekuensi radio: kesan kepekatan karbon dioksida (co2) ambien ke atas isyarat radio dalam kajian astronomi radio]
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