Kajian Model Penukaran Kadar Hujan untuk Integrasi Masa 60 Minit kepada 1 Minit di Malaysia (Study on Rainrate Conversion Models for 60 Minutes to 1 Minute Integration Times in Malaysia)
Journal Title: Jurnal Kejuruteraan - Year 2015, Vol 27, Issue 1
Abstract
The rapid development of wireless communication technologies has led the frequency band reach its saturated level, particularly in developed countries. This has drawn the attention of telecommunication systems engineer to explore the frequency band above the Ku band (10 GHz). However, raindrops signifi cantly affect the signal propagating in the frequency bands above 10 GHz. Thus, prediction of rain attenuation on the propagation of electromagnetic signals using 1 minute rainfall rate is important. In many countries, 60 minutes rainfall rate distribution are widely available compared to rainfall rate distribution with shorter integration times. Therefore, conversion method is essential to predict 1 minute rainfall rate distribution from 60 minutes rainfall rate distribution. This study was conducted using rainfall data from 10 stations of Malaysia Drainage and Irrigation Department over 3 years period of 2011 to 2013 to determine the best conversion model for 60 minutes rainfall rate in Malaysia. Several conversion models is presented in this study such as Segal, Burgueno et al., Chebil and Rahman, Lee et al., Lavergnat and Golé and Moupfouma and Martin. From the results, Chebil and Rahman’s model is found to be the most suitable model to be used in Malaysia with Root Mean Square (RMS) error below 20% for all locations. This project is very useful to determine rain attenuation in designing a high availability and accessibility satellite communication system.
Authors and Affiliations
Nor Irza Shakhira Bakhtir, Mandeep Singh Jit Singh
Keywords
Related Articles
- EP ID EP417572
- DOI 10.17576/jkukm-2015-27-06
- Views 80
- Downloads 0
Development of Bicycle Shift Models in Universiti Kebangsaan Malaysia Campus
Cycling is suitable for short trips and take shorter commute time for students who are living in the campus. Moreover, it requires lower costs and can reduce environmental pollution. However, cycling in campus is not wel...
Pembangunan Kawalan Logik Kabur dalam Reaktor Lapisan Terpadat (Development of Fuzzy Logic Controller for Packed Bed Reactor)
Fuzzy logic control system on simulation model was created using MATLAB Simulink R2011a in order to control the isomerization process of glucose to fructose in recycled and non-recycled packed bed reactor. Immobilized gl...
Effect of Chemical Treatments and Coupling Agents on the Properties of Unidirectional Jute Fiber Reinforced Polypropylene Composite
Due to different chemical nature of jute and polypropylene, their blended composite materials often show failures behavior when applied in load bearing purposes. The aim of the research is to improve the properties of un...
Lagrangian Investigation on the Compound Effects of Reclamation and Proposed Tidal Barrage to the Environmental Flow
Large-scale reclamation at Tekong Island, Singapore and the construction of a tidal barrage across Johor River in Kota Tinggi is expected to alter the local hydrodynamics in Johor River Estuary (JRE) and East Tebrau Stra...
A Novel Prototype and Simulation Model for Real Time Solid Waste Bin Monitoring System
This research deals with an exclusive solution to monitor the solid waste bin condition on real time. The system architecture is designed using wireless sensor networks. A set of carefully chosen sensors are used to meas...