2009 International Conference on Space Science and Communication最新文献_第5页

Position control of a two-link satellite tracker manipulator using optical flow 基于光流的双链卫星跟踪器机械手位置控制

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352637

S. M. Haris, M. K. Zakaria, N. Nikabdullah

引用次数: 0

Availability, reliability and accuracy of GPS signal in Bandar Baru Bangi for the determination of vehicle position and speed 巴鲁班吉市GPS信号的可用性、可靠性和准确性，以确定车辆的位置和速度

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352632

I. Mohamad, M. Ali, M. Ismail

{"title":"Availability, reliability and accuracy of GPS signal in Bandar Baru Bangi for the determination of vehicle position and speed","authors":"I. Mohamad, M. Ali, M. Ismail","doi":"10.1109/ICONSPACE.2009.5352632","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2009.5352632","url":null,"abstract":"The Global Positioning System (GPS) provides special features which can be utilized for wide range of applications. By providing information such as location, direction and speed, GPS is traditionally used for navigation. Nowadays many more applications, from farming, surveying to incident detection in fact fully utilized the GPS. This study accesses GPS signal and determines vehicle location and speed parameter such as maximum speed, maximum acceleration and deceleration. Assessing the GPS signal is important before implementing any application in certain area. The availability and reliability of the GPS are influenced by several variables, for example tall building, geometrical condition and big tree might block the GPS signal and reduce the data quality. It will affect the efficiency of any application based on GPS and become useless. Two types of tests had been setup, static positioning and mobile positioning where GPS probe vehicles were used to collect data in Bandar Baru Bangi, Malaysia trunk roads. The preliminary tests show promising results of availability and reliability percentage, accuracy, number of satellites in view and Horizontal Dilution of Precision values. The next stage of this research will apply the speed parameter obtained for Automated Incident Detection (AID) algorithm.","PeriodicalId":360685,"journal":{"name":"2009 International Conference on Space Science and Communication","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132480462","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}

引用次数: 17

CATV tester unit for fiber-to-the-home 用于光纤到户的有线电视测试单元

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352655

M. Ab-Rahman, Suria Che Rosli, Faridah Jaafar, Z. Zakaria, K. Jumari

引用次数: 3

GPS Ray Tracing to show the effect of ionospheric horizontal gradeint to L1 and L2 at ionospheric pierce point GPS射线追踪显示电离层水平梯度对电离层穿透点L1和L2的影响

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352633

K. Nagarajoo

{"title":"GPS Ray Tracing to show the effect of ionospheric horizontal gradeint to L1 and L2 at ionospheric pierce point","authors":"K. Nagarajoo","doi":"10.1109/ICONSPACE.2009.5352633","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2009.5352633","url":null,"abstract":"GPS ray propagates at two carrier frequencies; L1 at 1575.42 MHz and L2 at 1227.6 MHz. In this project, Jones 3D Ray Tracing program being used to determine the characteristics of the GPS ray as it propagates through the ionosphere. A numerical mathematical model which is continuous and contains no singularities has been used to represent the actual formation of the ionosphere in 3 dimensional (latitude, longitude and altitude). By using GPS ray tracing, it has been proved that the path of propagation for both L1 and L2 in the ionosphere is different. The point (latitude and longitude) where L1 intersects at IPP is different than the point (latitude and longitude) of intersection of L2. IPP or Ionospheric Pierce Point is the altitude in the ionosphere where the composition of electron density is greatest. It is also shown that the distance between the L1 and L2 at IPP over the equatorial region is greater than in the mid-latitude region. This is due to the difference in the composition of electron density in both these regions and also due to the presence of ionospheric horizontal gradient. In GPS, the presence of ionospheric horizontal gradient can effect the final GPS positioning if its' being ignored, especially the GPS positioning over the equatorial region.","PeriodicalId":360685,"journal":{"name":"2009 International Conference on Space Science and Communication","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131625764","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}

引用次数: 1

Radio astronomy research in Malaysia: Past, present and future 马来西亚射电天文学研究:过去、现在和未来

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352644

Z. Abidin, Zainol Abidin Ibrahim

{"title":"Radio astronomy research in Malaysia: Past, present and future","authors":"Z. Abidin, Zainol Abidin Ibrahim","doi":"10.1109/ICONSPACE.2009.5352644","DOIUrl":"https://doi.org/10.1109/ICONSPACE.2009.5352644","url":null,"abstract":"This paper will report on the progress in the research field of radio astronomy in Malaysia and also in South-East Asia. Radio astronomy research can be said to have only started being done actively in Malaysia in 2005. Fundamental setup and some basic research were done in the early parts. Jupiter radio bursts as well as radio meteor counting were the first few projects. Currently a medium-sized radio telescope which was recently purchased is being used to undergo more advanced research such as observing spectrum of galaxy clusters in order to study Dark Matter. This paper will also report on the latest results on the survey of Radio Frequency Interference (RFI), which is currently done on chosen candidate sites in Malaysia in order to setup on it a large radio telescope in the future. The best site with the lowest averaged RFI level is found at Langkawi (−100.33 dBm or 4.4 × 106 Jy). The author is the chair for the Radio Astronomy Working Group for the South-East Asia Astronomy Network (SEAAN) and the Malaysian team is very much an important part of this group. This group will eventually be a research hub for the global projects of the Global-Very Long Baseline Interferometer (Global-VLBI) and the Square Kilometre Array (SKA).","PeriodicalId":360685,"journal":{"name":"2009 International Conference on Space Science and Communication","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134117659","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}

引用次数: 5

The ionospheric response to the 1st August 2008 total solar eclipse using incoherent scatter radar measurements 利用非相干散射雷达测量电离层对2008年8月1日日全食的响应

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352652

M. Momani

引用次数: 1

Construction of wide angle beam scanning lens antenna and its applications 广角波束扫描透镜天线的构造及其应用

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352674

Yoshihide Yamada, N. Michishita, S. Kamada

引用次数: 8

Elemental characterization of PM10 in UKM campus UKM校园PM10的元素表征

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352661

A. Kadhum, A. Musa, M. A. Batiha, Abu Bakar Mohamd

引用次数: 0

Investigation of reconfigurability of dual-band microstrip patch antenna by utilizing MEMS switch 基于MEMS开关的双频微带贴片天线可重构性研究

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352657

Yulindon, N. Misran, B. Bais, M. Islam

引用次数: 3

Zenith angle dependence of muon rate at ground level in Bangi Bangi地面介子速率的天顶角依赖性

2009 International Conference on Space Science and Communication Pub Date : 2009-12-15 DOI: 10.1109/ICONSPACE.2009.5352639

N. M. Zain, G. Gopir, B. Yatim, H. Sanusi, N. H. Husain

引用次数: 3