Showing papers by "Roslan Umar published in 2011"
12 Jul 2011
TL;DR: This paper has identified some important Radio Frequency Interference sources that can potentially be a problem for any future radio astronomical observations in Universiti Teknologi MARA (UiTM) and possibly in Malaysia as a whole.
Abstract: In this paper, we have identified some important Radio Frequency Interference (RFI) sources that can potentially be a problem for any future radio astronomical observations in Universiti Teknologi MARA (UiTM) and possibly in Malaysia as a whole. Analysis is done by classifying and characterizing the strength of the sources' RFI profiles. Comparison of the RFI profiles between the indoor (Faculty of Applied Sciences) and outdoor (Square Parade) areas are also presented. Some suggestions in improving the quality of radio frequency profile are recommended.
27 citations
01 Dec 2011
TL;DR: The Radio Cosmology Research Lab (RCRL) as mentioned in this paper is the only radio astronomical facility in Malaysia, which was established in 2005 by Dr Zamri Zainal Abidin and Prof Dr Zainol ABidin Ibrahim.
Abstract: In this paper, we will present the current status of radio astronomical research and outreach in Malaysia. We will also present a short history of our research group, which is currently the only radio astronomical facility in Malaysia. Our group is called the Radio Cosmology Research Lab and was established in 2005 by Dr Zamri Zainal Abidin and Prof Dr Zainol Abidin Ibrahim. We will discuss the future plans for this group including our keen interest in being part of a more global network of radio astronomers. We are already an active member of the South-East Asia Astronomy Network (SEAAN) and aims to have a radio astronomical facility in order to join the Global Very Long Baseline Interferometer (VLBI) as well becoming a research hub for the future Square Kilometer Array (SKA) project. We will also present some of the scientific goals of our group including providing a platform for radio astronomers to be able to do observations of weak and high red-shifted radio objects such as galaxy clusters and supernovae.
15 citations
12 Jul 2011
TL;DR: The initial testing of the usage of the GIS system is reported to identify the areas with the lowest RFI in order to find the best site for the purpose of building a radio astronomical dish system in Malaysia, the first of its kind.
Abstract: Geographical Information System (GIS) can be used as a powerful tool in mapping large areas with varying Radio Frequency Interference (RFI) profiles. In this paper, we report the initial testing of the usage of this system in order to identify the areas with the lowest RFI. Among the important parameters used to develop the database for our GIS are information on population density, location and power of telecommunication transmitters, annual rainfall level, main road network and land contour. We will also se information gathered from on-site RFI level measurements on selected prime areas generated by the GIS. The aim is to find the best site for the purpose of building a radio astronomical dish system in Malaysia, the first of its kind.
3 citations