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Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.最新文献

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Full attitude determination specification - small libration version - of the Alsat-1 first Algerian microsatellite in orbit 阿尔及利亚第一颗在轨微型卫星Alsat-1的全姿态测定规范——小振动版本
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512552
A. Mohammed, M. Benyettou, M. Sweeting, J. Cooksley
{"title":"Full attitude determination specification - small libration version - of the Alsat-1 first Algerian microsatellite in orbit","authors":"A. Mohammed, M. Benyettou, M. Sweeting, J. Cooksley","doi":"10.1109/RAST.2005.1512552","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512552","url":null,"abstract":"The goal of attitude determination is to determine the orientation of the spacecraft relative to either an inertial reference frame or a frame referenced to some specific object of interest, such as the Earth. To do this we need the following: (1) First of all we must have available one or more reference vectors, i.e. unit vectors in known directions relative to the spacecraft (commonly used reference vectors are the Earth's magnetic field, and the unit vectors in the direction of the Sun, a known Star, or the centre of the Earth). (2) Given a reference vector, an attitude sensor measures the orientation of that vector (or some function of the vector) in the frame of reference of the spacecraft body. (3) Having done this for two or more vectors, we may compute the orientation of the spacecraft relative to these vectors. This paper describes the full attitude determination specification -Extended Kalman filter- using magnetometer and sun sensor measurement of the Alsat-1 first Algerian microsatellite in orbit : (1) Theoretical preliminaries on extended Kalman filter algorithm, (2) Extended Kalman filter application to Alsat-1 (System model, Process and Observation noise matrix), (3) In orbit results will be presented to evaluate the performance of the filter, (4) Conclusion.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123027598","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: 10
An overview for structural health monitoring of composites in aerospace applications 航空航天复合材料结构健康监测综述
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512582
Faruk Eialdi
{"title":"An overview for structural health monitoring of composites in aerospace applications","authors":"Faruk Eialdi","doi":"10.1109/RAST.2005.1512582","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512582","url":null,"abstract":"At the days while satellite manufacturing and launching issues are being discussed and studied in Turkey for the year 2020 and beyond, the continued growth of lightweight aerospace structure needs has placed a considerable demand on aerospace industry to manufacture systems such as satellites and launchers at lower cost and higher operating efficiency by keeping the safety level as required. The demand of reduction of structural weight introduced composite materials to aerospace industry for the last a few decades. A widely utilization of the advanced composite materials in current launching equipment and air vehicles required the development of new technologies to improve monitoring of the composite aerospace components such as fuel tanks, boosters, fuselage or wings. This paper aims to make an overview for structural health monitoring technologies developed for aerospace applications, specifically for the composite structures.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"5 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122604428","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: 4
Analysis of land topography using Radar Altimeter 2 利用雷达高度计分析陆地地形2
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512648
B. Osmanoglu, M. Kartal
{"title":"Analysis of land topography using Radar Altimeter 2","authors":"B. Osmanoglu, M. Kartal","doi":"10.1109/RAST.2005.1512648","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512648","url":null,"abstract":"In this work a simulator based on Envisat Radar Altimeter-2 has been developed in order to analyze characteristics of reflected waveforms over land surfaces. Using this simulator new approaches have been developed to classify surface characteristics and to make measurements on some land surface types.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129158379","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
The use of subionospheric VLF/LF propagation as the means to study ionospheric perturbations associated with earthquakes 利用亚电离层VLF/LF传播作为研究与地震有关的电离层扰动的手段
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512684
M. Hayakawa
{"title":"The use of subionospheric VLF/LF propagation as the means to study ionospheric perturbations associated with earthquakes","authors":"M. Hayakawa","doi":"10.1109/RAST.2005.1512684","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512684","url":null,"abstract":"NASDA (National Space Development Agency of Japan) has just finished the Earthquake Remote Sensing Frontier Project (for which the author was the principal scientist) conducted since 1996 within the framework of the Earthquake Frontier Projects by the former S.T.A. (Science and Technology Agency). Main emphasis of NASDA's Frontier Project was the complete understanding of lithosphere - atmosphere - ionosphere (LAI) coupling by making full use of different kinds of observational items and finally we would like to contribute to the short-term earthquake prediction. The most exciting finding from our Frontier project was the discovery of convincing evidence of the presence of seismo-ionospheric perturbations, which has been extensively investigated by using the subionospheric VLF/LF propagation, and several important findings have been presented, including the initial result for the Kobe earthquake and a few case studies from many data.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128299753","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: 0
Natural extreme phenomena in the atmosphere and solar radiation increase on the Black Sea surface 大气中的自然极端现象和黑海表面的太阳辐射增加
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512668
A. Manev, K. Palazov, J.S. Jekov, G. Mardirossian, S.J. Stoyanov
{"title":"Natural extreme phenomena in the atmosphere and solar radiation increase on the Black Sea surface","authors":"A. Manev, K. Palazov, J.S. Jekov, G. Mardirossian, S.J. Stoyanov","doi":"10.1109/RAST.2005.1512668","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512668","url":null,"abstract":"This paper focuses on the processes leading to increase of the solar radiation, reaching the Black Sea surface. We have tried to analyze the correlation between sea surface temperature, clouds and ozone layer thickness above the Black Sea by using simultaneously data from the satellite system NOAA, TOMS and ground stations. The anomalous changes in the examined atmosphere and sea surface parameters are described. Synoptical maps of Europe during the anomalies arc used in the research process. This paper discusses the extent to which ozone layer natural anomalies and meteorological conditions can lead to possible ecological changes. An electronic atlas of daily sea surface temperatures for the period 1985 - 1998 and the respective ozone layer condition has been published for the purposes of the research. The methods used in data processing and analyzing are described in the paper.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124419657","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: 0
Recent advances in dual-mode Hall effect thruster development 双模霍尔效应推力器发展的新进展
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512588
A. Lazurenko, S. Mazouffre, M. Prioul, O. Duchemin, D. Arrat, M. Dudeck
{"title":"Recent advances in dual-mode Hall effect thruster development","authors":"A. Lazurenko, S. Mazouffre, M. Prioul, O. Duchemin, D. Arrat, M. Dudeck","doi":"10.1109/RAST.2005.1512588","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512588","url":null,"abstract":"Two SNECMA's Hall-effect thrusters - the 1.5 kW class PPS/sup /spl reg//-1350G and the 5 kW class PPS/sup /spl reg//-X000ML were tested in a wide range of operation parameters. For instance, with a propellant mass-flow rate of 2.3 mg/s for the former and 5 mg/s for the latter, the discharge voltage was ramped up to 1000V. They demonstrated the flexibility in changing of operation parameters and promising performances from the point of view of the dual-mode operation. Particularities about the ion acceleration in the PPS/sup /spl reg//-X000ML are also presented and discussed in this contribution.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125817909","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: 3
A real time UML modeling for satellite on board software 卫星机载软件的实时UML建模
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512567
W. A. Dos Santos, O.A. Martins, A. M. da Cunha
{"title":"A real time UML modeling for satellite on board software","authors":"W. A. Dos Santos, O.A. Martins, A. M. da Cunha","doi":"10.1109/RAST.2005.1512567","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512567","url":null,"abstract":"This paper describes the use of UML to aid developing real time on-board software for satellites, as a safety-critical system. In order to expedite development, an Integrated-Computer Aided Software Engineering-Environment (I-CASE-E) tailored for real time applications is used. To keep the approach general, the Satellite under consideration has a 3-axis stabilized bus with a generic payload. The I-CASE-E allows for model execution where one can find problems and issues that whiteboarding and document reviews are unable to find. Moreover, an incremental development can be effectively attained even in high-level architectural models. Major expected findings are higher quality software and more predictable delivery cycles.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125240854","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 PM2x family of propulsion modules PM2x系列推进模块
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512592
M. Lange, F. Fass, M. Rath
{"title":"The PM2x family of propulsion modules","authors":"M. Lange, F. Fass, M. Rath","doi":"10.1109/RAST.2005.1512592","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512592","url":null,"abstract":"A Family of Low Cost Monopropellant Propulsion Modules for small satellites was developed at EADS-ST. The Objective was to develop a \"plug-in\" module that could be easily adapted for use with various satellite platforms and missions. An ITAR-free version is also being developed. Concurrent engineering and a success-oriented qualification philosophy are being used to achieve qualification in a very short time.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116119311","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
eHealth: from space medicine to civil healthcare 电子医疗:从太空医学到民用医疗
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512665
M. Jordanova
{"title":"eHealth: from space medicine to civil healthcare","authors":"M. Jordanova","doi":"10.1109/RAST.2005.1512665","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512665","url":null,"abstract":"Over the last decades the ultimate goal becomes delivering best possible health service for anyone, at any time, from anywhere. No doubt, the most effective way is by transferring the experience of space medicine and applying the major advances in information and communications technology (ICT) in civil healthcare. The aim of this paper is to establish the scope of eHealth based on an overview and comparison of nowadays status of eHealth in numerous countries, both developed and developing. The challenges, barriers and structure of the present eHealth world, i.e. industries supplying telemedicine arid eHealth products and solutions from one hand and the beneficiaries (healthcare systems and patients) from the other will be shortly presented. The paper will also stress on the big challenge at the present time, which is to make several different industries to coordinate their skills and efforts to achieve an optimal development within the health environment using modern communication systems as well as on the role of some international initiatives that have been established recently.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130853832","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: 4
A multi-level of abstraction systems engineering process model for Turkish space program 土耳其航天项目多层次抽象系统工程过程模型
Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005. Pub Date : 2005-06-09 DOI: 10.1109/RAST.2005.1512699
S.M. Yuksel, M.A. Cakmak, E.S. Gokpinar
{"title":"A multi-level of abstraction systems engineering process model for Turkish space program","authors":"S.M. Yuksel, M.A. Cakmak, E.S. Gokpinar","doi":"10.1109/RAST.2005.1512699","DOIUrl":"https://doi.org/10.1109/RAST.2005.1512699","url":null,"abstract":"For some time, there has been a strong will to start a national space program in Turkey. However, when technological, financial and human resources of Turkey are considered, Turkish Space Program (TSP) appears to be a challenge for the nation. To commit to achieve such a challenging goal, a solid systematic approach to all aspects of the space program must be devised and thoroughly applied. In this paper, we developed a systems engineering process model to apply throughout the total space program at each level of abstraction from the national level to component level. Furthermore, the evaluation criteria incorporated into national level is given, a set of systems engineering activities needed to manage the total space program is defined and some tools like total work breakdown structure and knowledge-base growth model to define the scope of the national space program is explained. As a conclusion, it is emphasized further that allocation of each element of the space program to relevant national organizations according to their capabilities is crucial for the success of the national space program.","PeriodicalId":156704,"journal":{"name":"Proceedings of 2nd International Conference on Recent Advances in Space Technologies, 2005. RAST 2005.","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133657930","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: 0
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