Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ
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| date | 2015-07-14 12:05:56 |
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| id | 12148 |
| institution | UniSZA |
| internalnotes | [1]Haslett, C. 2008. Essentials of Radio Wave Propagation. Cambridge University Press. [2]Hassan, M., Ali, A., & Alhaider, M. 1985. RainMeasurements for Mm-Wave Propagation: A Review. J. Eng. Sci.11(2):179-200. [3]Nelson, R. A. 2000. RainHow it Affects the Communication Link.Via Satellite, May. [4]Barclay, L. W. 2003. Propagation of Radiowaves. 502. [5]Stevens, B., & Bony, S. 2013. Water in the Atmosphere. Physics Today.66(6):29-34. [6]Okamura, S., & Oguchi, T. 2010. Electromagnetic Wave Propagation in Rain and Polarization Effects.Proceedings of the Japan Academy. Series B, Physical and Biological Sciences.86(6):539. [7]Baldotra, A. K., & Hudiara, I. 2004. Rain Attenuation Statistics Over Terrestrial Microwave Link at 19.4 ghz at Amritsar.Antennas and Propagation,IEEE Transactions on.52(6):1505-1508. [8]Mandeep, J. 2009. Rain Attenuation Statistics Over aTerrestrial Linkat 32.6 ghz at malaysia. Microwaves, Antennas & Propagation, IET.3(7):1086-1093. [9]BUTHROFF, C. 1970. Rain Attenuation and Radio Path Design. Bell System Technical Journal. [10]Abidin, Z. Z., Umar, R., Ibrahim, Z. A., Rosli, Z., Asanok, K., & Gasiprong, N. 2013. Investigation on the Frequency Allocation for Radio Astronomy at the L Band. Publications of the Astronomical Society of Australia.30:e047. [11]Meng, Y. S., Lee, Y. H., & Ng, B. C. 2009. Further Study of Rainfall Effect on VHF Forested Radio-wave Propagation With Four-layered Model.Progress in Electromagnetics Research.99:149-161. [12]Umar, R., Abidin, Z. Z., Ibrahim, Z. A.,Rosli, Z., & Noorazlan, N. 2014. Selection of Radio Astronomical Observation Sites and Its Dependence on Human Generated RFI. Research in Astronomy and Astrophysics.14(2):241. |
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| spelling | 12148 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12148 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 Restricted Document Article Journal UniSZA Unisza unisza image/jpeg inches 96 96 787 70 70 2015-07-14 12:05:56 1390x787 1390 6448-01-FH02-ESERI-15-03515.jpg UniSZA Private Access Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ Jurnal Teknologi An appropriate site selection for radio astronomy observation is very important in order to find a low level site in RFI value. The aim of this study is to select the best possible factors for astronomical observation sites. There are many factors such as slope, raindrop, river, population density, road network, land used, wireless telephone technology interrupts radio astronomy observation. In this study, we have reported one of the factors that affect radio observation which is rain effect. The site selection study is the most crucial part of decision makers proposes where to build an astronomical observatory, especially in radio astronomy with a maximum efficiency. The observation apparatus was set up to study the effect of rainfall and raindrop to the radio signal. We found that, in the inside observation, we found that spectral lines (Deuterium, Hydrogen, and two Hydroxyl lines) show that the rain gives no effect to radio signal in those windows. We also found that there is very small fluctuate value are very small (about -2 dB) for outside observation. It can be considered has no significant effect on rain below 2.9 GHz. 75 1 Penerbit UTM Press Penerbit UTM Press 7-11 [1]Haslett, C. 2008. Essentials of Radio Wave Propagation. Cambridge University Press. [2]Hassan, M., Ali, A., & Alhaider, M. 1985. RainMeasurements for Mm-Wave Propagation: A Review. J. Eng. Sci.11(2):179-200. [3]Nelson, R. A. 2000. RainHow it Affects the Communication Link.Via Satellite, May. [4]Barclay, L. W. 2003. Propagation of Radiowaves. 502. [5]Stevens, B., & Bony, S. 2013. Water in the Atmosphere. Physics Today.66(6):29-34. [6]Okamura, S., & Oguchi, T. 2010. Electromagnetic Wave Propagation in Rain and Polarization Effects.Proceedings of the Japan Academy. Series B, Physical and Biological Sciences.86(6):539. [7]Baldotra, A. K., & Hudiara, I. 2004. Rain Attenuation Statistics Over Terrestrial Microwave Link at 19.4 ghz at Amritsar.Antennas and Propagation,IEEE Transactions on.52(6):1505-1508. [8]Mandeep, J. 2009. Rain Attenuation Statistics Over aTerrestrial Linkat 32.6 ghz at malaysia. Microwaves, Antennas & Propagation, IET.3(7):1086-1093. [9]BUTHROFF, C. 1970. Rain Attenuation and Radio Path Design. Bell System Technical Journal. [10]Abidin, Z. Z., Umar, R., Ibrahim, Z. A., Rosli, Z., Asanok, K., & Gasiprong, N. 2013. Investigation on the Frequency Allocation for Radio Astronomy at the L Band. Publications of the Astronomical Society of Australia.30:e047. [11]Meng, Y. S., Lee, Y. H., & Ng, B. C. 2009. Further Study of Rainfall Effect on VHF Forested Radio-wave Propagation With Four-layered Model.Progress in Electromagnetics Research.99:149-161. [12]Umar, R., Abidin, Z. Z., Ibrahim, Z. A.,Rosli, Z., & Noorazlan, N. 2014. Selection of Radio Astronomical Observation Sites and Its Dependence on Human Generated RFI. Research in Astronomy and Astrophysics.14(2):241. |
| spellingShingle | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| summary | An appropriate site selection for radio astronomy observation is very important in order to find a low level site in RFI value. The aim of this study is to select the best possible factors for astronomical observation sites. There are many factors such as slope, raindrop, river, population density, road network, land used, wireless telephone technology interrupts radio astronomy observation. In this study, we have reported one of the factors that affect radio observation which is rain effect. The site selection study is the most crucial part of decision makers proposes where to build an astronomical observatory, especially in radio astronomy with a maximum efficiency. The observation apparatus was set up to study the effect of rainfall and raindrop to the radio signal. We found that, in the inside observation, we found that spectral lines (Deuterium, Hydrogen, and two Hydroxyl lines) show that the rain gives no effect to radio signal in those windows. We also found that there is very small fluctuate value are very small (about -2 dB) for outside observation. It can be considered has no significant effect on rain below 2.9 GHz. |
| title | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| title_full | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| title_fullStr | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| title_full_unstemmed | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| title_short | Preliminary study of radio astronomical lines effect of rain below 2.9 GHZ |
| title_sort | preliminary study of radio astronomical lines effect of rain below 2.9 ghz |