International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of最新文献_第6页

Fiber optics demonstrated use in space vehicles 光纤在太空飞行器上的应用

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303929

J. Ressia, J. L. Peck

引用次数: 2

Educational value and lessons learned from the AAU-CubeSat project aau立方体卫星项目的教育价值和经验教训

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303391

Lars K. Alminde, M. Bisgaard, D. Vinther, Tor Viscor, K. Østergaard

{"title":"Educational value and lessons learned from the AAU-CubeSat project","authors":"Lars K. Alminde, M. Bisgaard, D. Vinther, Tor Viscor, K. Østergaard","doi":"10.1109/RAST.2003.1303391","DOIUrl":"https://doi.org/10.1109/RAST.2003.1303391","url":null,"abstract":"In September 2001 Aalborg university started the AAU-cubesat project that reached it climax when the student built satellite was launched into space on the 30th of June 2003 on top of a former Russian ICBM. AAU-cubesat was among the first five satellites to be launched that are built within the cubesat concept that prescribes a satellite with dimensions 10/spl times/10/spl times/10 cm and mass one kilogram. These constraints clearly limits the possibilities for the satellite in terms of possible scientific missions, but on the other hand: by building satellites of this size a technology push is created that in the future will help to reduce the size of both scientific and commercial satellites and thus help to drive down the launch cost. In this paper described the overall architecture of the AAU-cubesat in order to show what a pico-satellite can be and demonstrate all the fields of engineering which must come together to built a student satellite like the AAU-cubesat. Results from the operation phase will be stated, and recommendations on further work on pico-satellite designs will be given. In addition as the project has been carried through by students then the educational value of the project will be addressed as well.","PeriodicalId":272869,"journal":{"name":"International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117011044","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: 38

Homing guidance laws using applied fuzzy systems 应用模糊系统的寻的制导律

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1304001

S. Deskovski, Z. Gacovski, G. Dimirovski

{"title":"Homing guidance laws using applied fuzzy systems","authors":"S. Deskovski, Z. Gacovski, G. Dimirovski","doi":"10.1109/RAST.2003.1304001","DOIUrl":"https://doi.org/10.1109/RAST.2003.1304001","url":null,"abstract":"In this paper we present a simulation model of homing-guided anti-aircraft or surface-to air (SA) missiles-SAM, suitable for research, development and testing of different guidance and control laws, obtained from synthesis process. In homing-guidance systems for SA missiles-proportional navigation is most commonly used, and also improved solutions and optimal guidance laws based on modern control theory. In the synthesis of these laws-reduced and linearized models are used, which are obtained from general laws for mobile objects (target and missile) under some assumptions. All systems for guidance and control of SA missiles are complex and typically non-linear. Also there is a need for neutralizing of targets with high range of parameter changes (acceleration, velocity and height), in different shooting regimes (incoming, outgoing etc.). In order to provide quality process and small guidance error-we have applied fuzzy logic to obtain some parameters for the guidance law. In this paper we present results from investigation of different guidance laws for hypothetic SA missile. We have investigated classical proportional navigation-PN, augmented proportional navigation-APN, and optimal guidance laws for different shooting conditions. The results from fuzzy guidance law combined with proportional navigation are also given. Simulation programs are realized in FORTRAN and MATLAB.","PeriodicalId":272869,"journal":{"name":"International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121212438","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: 6

Launch of the international Disaster Monitoring Constellation; the development of a novel international partnership in space 发射国际灾害监测星座;在空间领域发展一种新的国际伙伴关系

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303972

P. Stephens, J. Cooksley, A. da Silva Curiel, L. Boland, S. Jason, J. Northham, A. Brewer, J. Anzalchi, H. Newell, C. Underwood, S. Machin, W. Sun, S. Sweeting

{"title":"Launch of the international Disaster Monitoring Constellation; the development of a novel international partnership in space","authors":"P. Stephens, J. Cooksley, A. da Silva Curiel, L. Boland, S. Jason, J. Northham, A. Brewer, J. Anzalchi, H. Newell, C. Underwood, S. Machin, W. Sun, S. Sweeting","doi":"10.1109/RAST.2003.1303972","DOIUrl":"https://doi.org/10.1109/RAST.2003.1303972","url":null,"abstract":"Three spacecraft for the UK, Turkey and Nigeria were launched together in September 2003, to join Algeria's satellite, AlSat-1, in the Disaster Monitoring Constellation (DMC). Surrey Satellite Technology Ltd. has designed, built and launched the world's first constellation to provide daily global Earth observation coverage at moderate resolution in three spectral bands. This international initiative will provide daily images for global disaster monitoring, as well as supporting each partner nation's indigenous remote sensing requirements. The DMC programme establishes a novel model for international collaboration, and demonstrates how small satellite missions can be employed for a wide range of applications. This paper shows the first in-orbit mission results from DMC satellites including examples of unique EO data products comprising up to 600/spl times/600 km images gathered at 32-metres GSD in 3 spectral bands.","PeriodicalId":272869,"journal":{"name":"International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122638083","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: 19

Watersheds as a sustainable development tool 流域作为可持续发展的工具

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303994

M. Ozel, H. Yildirim

引用次数: 0

Testing tether dynamics in space - the STRING mission 在太空中测试系绳动力学- STRING任务

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303962

B. Altan, P. Forquera, Y. Segal

引用次数: 1

Improve satellite radio navigation system performances using linear Kalman filtering 利用线性卡尔曼滤波提高卫星无线电导航系统性能

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303975

C. Hajiyev

引用次数: 0

Micro-controller based vehicle tracing system via use of GPS and GSM 基于GPS和GSM的单片机车辆跟踪系统

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303986

A. Okatan, A. Salih, C. Akpolat, K. Çelik

引用次数: 5

Automatic detection of flooded areas on ENVISAT/ASAR images using an object-oriented classification technique and an active contour algorithm 基于面向对象分类技术和主动轮廓算法的ENVISAT/ASAR图像洪水区域自动检测

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303926

R. Heremans, A. Willekens, D. Borghys, B. Verbeeck, J. Valckenborgh, M. Acheroy, C. Perneel

引用次数: 56

Computational modelling of two phase fluid flow in micro/meso channels 微/中观通道中两相流体流动的计算模型

International Conference on Recent Advances in Space Technologies, 2003. RAST '03. Proceedings of Pub Date : 1900-01-01 DOI: 10.1109/RAST.2003.1303988

S. Onbaşıoǧlu, S. Kurnaz

引用次数: 0