{"title":"Development of mission control station software for a CubeSat mission","authors":"S. Yuhaniz, N. Hamzah","doi":"10.1109/ICONSPACE.2015.7283819","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283819","url":null,"abstract":"This paper discusses the development process of a mission control station software for TiGA-U, a CubeSat bus. The software development process follows an iterative model whereby each phase in the cycle is repeated and modified according to the requirements from the stakeholders. The requirements, software architecture and design, and software testing are also presented.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125566971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implementation of three scheduling algorithms in the smart grid communications over 4G networks","authors":"Ayman Hajjawi, M. Ismail, T. Yuwono","doi":"10.1109/ICONSPACE.2015.7283818","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283818","url":null,"abstract":"The latest 4G wireless technology, Long Term Evolution (LTE), is expected to be a promising wireless network for smart grid communications due to its high data rate and low delay. The needs of real time communications in the smart grid require reliable, confident and well tested wireless networks. Scheduling is one of the mechanisms which has a crucial role on the smart grid performance since it is in charge of the bandwidth resource allocation process. However, due to the fact that LTE has not been intended for smart grid communications, the performance of the scheduling algorithms must be optimized and properly tested. This paper aims at evaluating the performance of three scheduling algorithms, namely Frame Level Scheduler, Exponential Rule and Logarithmic Rule algorithms, in the smart grid communications. The evaluation process is based on their performance in the smart grid for three applications (VoIP, video surveillance and metering data) with specific data rate and delay requirements for each application. The results are evaluated in terms of throughput, delay and packet loss ratio.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117318122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The estimation of rainfall and precipitation variation during 2011 convective system using an artificial neural network over Tawau, Sabah","authors":"W. Suparta, W. S. Putro, M. Singh, M. Asillam","doi":"10.1109/ICONSPACE.2015.7283806","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283806","url":null,"abstract":"For succeed the early warning system development programme for space activity plan at Tawau, Sabah Malaysia, we studied the variation of rainfall and precipitation over convective system activity. We use five variables data such as the surface meteorological data (Pressure, Temperature and Relative Humidity), rainfall data, and precipitation. The surface meteorological data are taken from weather underground website, the rainfall data we obtain from rain gauge sensor Department of Irrigation and Drainage (DID) Malaysia, and also the precipitation data was obtained from NASA Satellite (Tropical Rainfall Measuring Mission). In this study, we attempt to estimate two variable targets (rainfall and precipitation) using Artificial Neural Network (ANN). The estimation was constructed as an alternative method to develop rainfall and precipitation model using surface meteorological data during convective system activity on summer monsoon over Tawau area. In this study, we processed surface meteorological, rainfall and precipitation data from 1 June 2011 to 31 August 2011. The Multilayer Perceptron (MLP) architecture and Levenberg Marquardt (LM) algorithms have been deployed in this study. We obtain the good result of estimation with one output target. The Root Mean Square Error (RMSE) value of rainfall and precipitation were 4.3540e-004 and 2.7834e-004 respectively and also Variance Accounted For (VAF) of rainfall and precipitation were 94.344% and 98.923% respectively during the training process. Testing results showed an error of 5.656% and 1.077% for precipitation and rainfall, respectively. However, we found the weakness of estimation model using three parameter inputs and two parameter output targets with the same structure. It means that for future work we suggest using 3 years data over convective system activity during summer monsoon is considered in the output target (rainfall and precipitation).","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121078950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Eslami, M. Ghaderi, Amin Beiranvand Pour, M. Hashim
{"title":"Integration of ASTER and Landsat TM satellite data for lithological mapping and chromite prospecting","authors":"A. Eslami, M. Ghaderi, Amin Beiranvand Pour, M. Hashim","doi":"10.1109/ICONSPACE.2015.7283783","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283783","url":null,"abstract":"Landsat Thematic Mapper and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) satellite data were used for lithological mapping and chromite prospecting in Neyriz ophiolitic zone in the south of Iran. Image transformation techniques, namely decorrelation stretch, band ratio, principal component analysis (PCA) were applied to the datasets. The RGB decorrelated image of Landsat TM bands 7, 5 and 4, and the principal components images of ASTER bands in the visible near infrared (VNIR) and shortwave infrared (SWIR) portions demonstrated the occurrence of major lithological units in the study area. The developed band ratios on the VNIR-SWIR spectral bands of ASTER, including 5/3, 5/1, 7/5 discriminated all rock units distinctly and delineated the host rock of chromite mineralized zone along the transition zone in the study area. Image processing results were verified by laboratory analysis and fieldwork. Result of this investigation indicate that the integration of Landsat TM and ASTER datasets is one of the most effective tool for lithological mapping and chromite prospecting in mountainous and inaccessible regions such Iranian ophiolitic zones.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116946341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimized impulse correlation technique to mitigate the MUI at UWB-TR receiver","authors":"Mohammed Saeed Mohammed, M. Singh, M. Abdullah","doi":"10.1109/ICONSPACE.2015.7283817","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283817","url":null,"abstract":"Ultra-wideband (UWB) communication techniques are highly interesting because they seek to rearrange the huge spectrum of UWB for diverse applications. Therefore, UWB is the main technique employed in communication systems for 4G wireless networks. However, several issues in UWB technology, such as interference with various existing civil and military communication systems, require resolution. In this study, the number of impulses (M) obtained from a pulse is optimized to implement a special correlation technique called optimized impulse correlation (OPIC). The UWB transmitted-reference (TR) receiver correlates all impulses in the pulse. The new technique contributes to the reduction of multi-user interference (MUI), especially in concurrent schemes. According to the OPIC curve, a value of M from (M = 1, 3, 5) is the most suitable to eliminate MUI in the TR receiver, not a value of M from (M = 7, 9,..., 49).","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122252924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amir Sharifuddin Ab Latip, A. Matori, Anuphao Aobpaet, Ami Hassan Md Din
{"title":"Monitoring of offshore platform deformation with stanford method of Persistent Scatterer (StaMPS)","authors":"Amir Sharifuddin Ab Latip, A. Matori, Anuphao Aobpaet, Ami Hassan Md Din","doi":"10.1109/ICONSPACE.2015.7283785","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283785","url":null,"abstract":"Numerous studies have proven that the Persistent Scatterer Interferometry (PSI) technique has been successfully utilized for land subsidence monitoring, slope stability monitoring, volcano deformation, earthquake deformation, urban deformation and dike monitoring. However, the ability of the PSI technique for the application of the offshore structures such as offshore oil platform has been less recognized. With the PSI technique, the deformation information can be extracted from man-made features of offshore structures which having high radar backscatter response. Therefore, this paper investigates the capabilities of PSI technique using Stanford Method of Persistent Scatterer (StaMPS) for monitoring deformation phenomena of an offshore platform. A total number of 11 highresolution X-band data from Terra SAR-X radar images covering the period from 2012 to 2013 are utilized to apply the StaMPS method. The results show deformation rate of the offshore platform is in the range between -6 mm/year and 8.1 mm/year and its standard deviation from 0.8 to 3.1 mm/year which is comparable to deformation monitoring result from Global Positioning System(GPS) technique done earlier. Therefore, it shows the potential of using the PSI technique for such deformation monitoring of offshore structures.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127883494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First kind plume analysis of volcanic blast: Application of an indigenous model","authors":"M. Emetere, M. Akinyemi","doi":"10.1109/ICONSPACE.2015.7283750","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283750","url":null,"abstract":"The control of air pollutants from anthropogenic sources seem almost impossible due to numerous influencing factors present in the atmosphere. This study carried out a virtual mathematical experimentation using Matlab and analytical approximation to estimate the dimensional impact of initial pollutant plume cloud from a sudden volcanic blast and the dynamics of its wind field. The impact concentration (β) at the point source by the end of the first second (1.0s) was 3.0×105μgm-3 which implied a 99.5% sudden decay when compared to 0.01s concentration value at the emission point source, the corresponding vertical profile of aerosol content is 1.0×1032μgm-3. The study observed that air pollutants release from explosives/blasts get transported into the atmosphere in the first few seconds by forceful injection instead of by gradual dispersion as is the case with normal air pollutants plume releases. A mathematical control process was propounded (which is still subject to further research) to reduce the quick flow of air pollutants to immediate eruption vicinity.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"453 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125787685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Shariff, M. Singh, K. Chellappan, W. Suparta, F. Tangang, E. Salimun, Maszidah Muhammad, M. Abdullah, M. Islam
{"title":"Initial observations of cold surge frequency over Southeast Asia in relation to ENSO-induced anomalies","authors":"A. Shariff, M. Singh, K. Chellappan, W. Suparta, F. Tangang, E. Salimun, Maszidah Muhammad, M. Abdullah, M. Islam","doi":"10.1109/ICONSPACE.2015.7283773","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283773","url":null,"abstract":"Over the Southeast Asian region, strong surges of cold northeasterly winds are common during winter of the southern hemisphere. For these cold surges, the occurrence frequency is known to vary in conjunction with the El Niño-Southern Oscillation (ENSO) phenomenon. This preliminary study looks at the correlation between cold surge frequency (CSF) and two indicators of ENSO-induced anomalies - the Southern Oscillation Index (SOI) and the Oceanic Niño Index (ONI). ENSO events are detected when each of these indices exceed certain anomaly threshold values for a specified prolonged period. These anomaly threshold values (ATSOI and ATONI) are used as conditions for logical filtering. Four unrelated rounds of logical filtering are applied to 20 seasons of data. Correlation values are then calculated. The results show that the CSF has a more significant one-to-one correlation with the anomaly of atmospheric pressure (which is indicated by the SOI) than the anomaly of sea surface temperature (indicated by the ONI). However, the findings suggest that the approach of logical filtering using both anomaly indices (together) is more effective, when observing CSF in relation to ENSO. Also, it is suggested that CSF per normal seasons is in the range of 16 to 17 events during DJF. (These results apply to an area between 110° and 117.5°E along 15°N.).","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132106321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Developing a proposed satellite reaction wheel model with current mode control","authors":"M. F. Mehrjardi, H. Sanusi, M. Ali","doi":"10.1109/ICONSPACE.2015.7283839","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283839","url":null,"abstract":"The motivation for development of reaction wheel components model is to achieve a precise reaction wheel model for attitude control subsystem of spacecraft. Recent developments in spacecrafts manufacturing industry have heightened the need for accurate attitude control subsystems. Performance of spacecraft attitude control, as one of the complex subsystems of spacecrafts, is often reduced by both environmental and internal disturbances. Ideally, the output torque of reaction wheel should depend on the input current but in reality; various disturbances are operative as well. Most commonly, disturbance sources are flywheel imbalance, bearing frictions, bearing torque noise, motor torque ripple and cogging. This study proposes a precise reaction wheel model and these disturbance torques are considered inside the model. Then the results show how disturbance torques deteriorate the wheel speed, angular momentum, and reaction torque of the reaction wheel.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117316615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Three-dimensional urban slum reconstruction from ENVISAT ASAR data","authors":"M. Marghany","doi":"10.1109/ICONSPACE.2015.7283796","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2015.7283796","url":null,"abstract":"This study aims to investigate the probable of ENVISAT ASAR satellite and Google Earth data for three-dimensional (3-D) urban slum reform. The major objective of this study is to exploit 3-D automatic detection algorithm for urban slum in ENVISAT ASAR and Google Erath images using Fuzzy B-spline algorithm. The results present that the fuzzy algorithm is excellent for automatic detection of chaotic urban slum from its surrounding environment. The results expose that urban slums, road network, and infrastructures are impeccably categorized. The fuzzy B-spline delivers high accuracy with standard error of 0.0005 compared to Digital Train Data (DTM). The permutation of Fuzzy and B-spline is to reconstruct 3-D of urban slum. In conclusion, the fuzzy algorithm is the proper algorithm for chaotic urban slum automatic detection in ENVSIAT ASAR and Google Earth data.","PeriodicalId":150022,"journal":{"name":"2015 International Conference on Space Science and Communication (IconSpace)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117227214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}