2010 IEEE Aerospace Conference最新文献

筛选
英文 中文
Delay/Disruption-Tolerant Networking: Flight test results from the international space station 延迟/容错网络:来自国际空间站的飞行测试结果
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446948
Andrew Jenkins, Sebastian Kuzminsky, Kevin K. Gifford, R. Pitts, Kelvin Nichols
{"title":"Delay/Disruption-Tolerant Networking: Flight test results from the international space station","authors":"Andrew Jenkins, Sebastian Kuzminsky, Kevin K. Gifford, R. Pitts, Kelvin Nichols","doi":"10.1109/AERO.2010.5446948","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446948","url":null,"abstract":"The University of Colorado is working with NASA to extend Earth's internet into outer space and across the solar system. The new networking technology is called Disruption Tolerant Networking (DTN), and is being tested on the International Space Station. DTN will enable NASA and other space agencies around the world to better communicate with international fleets of spacecraft that will be used to explore the moon and Mars. This technology is evolving into an Interplanetary Internet. In this paper we describe the design and features of the DTN-on-ISS implementation as well as reporting initial results from the experimental deployment. 1,2","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126359624","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: 57
On the optimization of DVB-S2 links in EHF bands EHF频段DVB-S2链路优化研究
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446998
S. Mukherjee, M. De Sanctis, T. Rossi, E. Cianca, M. Ruggieri, R. Prasad
{"title":"On the optimization of DVB-S2 links in EHF bands","authors":"S. Mukherjee, M. De Sanctis, T. Rossi, E. Cianca, M. Ruggieri, R. Prasad","doi":"10.1109/AERO.2010.5446998","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446998","url":null,"abstract":"In this paper an analysis on the use of Adaptive Coding and Modulation (ACM) techniques for EHF satellite communications is presented with reference to the DVB-S2 standard. The analysis is focused on W-band communication links and includes an optimization of DVB-S2 ACM thresholds of the received Signal to Noise Ratio (SNR) for Extremely High Frequency (EHF) links. The simulation model includes rain fading and amplifier nonlinearities which can not be neglected for the performance analysis and optimization of real systems in W-band. 1 2","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121539857","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: 16
Removing spikes while preserving data and noise using wavelet filter banks 去除尖峰,同时保留数据和噪声使用小波滤波器组
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446821
E. Sheybani, O. Mengshoel, S. Poll
{"title":"Removing spikes while preserving data and noise using wavelet filter banks","authors":"E. Sheybani, O. Mengshoel, S. Poll","doi":"10.1109/AERO.2010.5446821","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446821","url":null,"abstract":"Many diagnostic datasets suffer from the adverse effects of spikes that are embedded in data and noise. For example, this is true for electrical power system data where the switches, relays, and inverters are major contributors to these effects. Spikes are mostly harmful to the analysis of data in that they throw off real-time detection of abnormal conditions, and classification of faults. Since noise and spikes are mixed together and embedded within the data, removal of the unwanted signals from the data is not always easy and may result in losing the integrity of the information carried by the data. Additionally, in some applications noise and spikes need to be filtered independently. The proposed algorithm is a multi-resolution filtering approach based on Haar wavelets that is capable of removing spikes while incurring insignificant damage to other data. In particular, noise in the data, which is a useful indicator that a sensor is healthy and not stuck, can be preserved using our approach. Presented here is the theoretical background with some examples from a realistic testbed.1 2","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121618620","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
Human rated Delta IV Heavy Constellation architecture impacts 人类评级德尔塔IV重型星座建筑影响
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446891
M. Hart, D. Bearden, J. Skratt
{"title":"Human rated Delta IV Heavy Constellation architecture impacts","authors":"M. Hart, D. Bearden, J. Skratt","doi":"10.1109/AERO.2010.5446891","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446891","url":null,"abstract":"This paper summarizes the findings of several assessments of the technical, cost, and schedule feasibility of replacing the Ares I with a human-rated evolved expendable launch vehicle (EELV), and its first-order effects on the overall Constellation architecture. 12The paper examines if an EELV, specifically the Delta IV Heavy (Delta IV H), could serve the crew launch function, and if so, determine the impacts to the launch vehicle, production, and launch-base processing, and fabrication. Also included is an assessment of the effects on the Constellation architecture elements of replacing Ares I with a humanrated version of Delta IV H (HR Delta IV H), estimates of the associated cost and schedule (including impacts to Ares V cost and development time), and identification of impacts on national security space (NSS) if NASA utilizes an HR Delta IV H for low Earth orbit (LEO) human missions.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122251101","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
Field test implementation to evaluate a flash LIDAR as a primary sensor for safe lunar landing 实地测试实施,评估闪光激光雷达作为安全登月的主要传感器
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5447024
J. Keim, S. Mobasser, D. Kuang, Yang Cheng, Tonislav Ivanov, Andrew E. Johnson, H. Goldberg, G. Khanoyan, D. Natzic
{"title":"Field test implementation to evaluate a flash LIDAR as a primary sensor for safe lunar landing","authors":"J. Keim, S. Mobasser, D. Kuang, Yang Cheng, Tonislav Ivanov, Andrew E. Johnson, H. Goldberg, G. Khanoyan, D. Natzic","doi":"10.1109/AERO.2010.5447024","DOIUrl":"https://doi.org/10.1109/AERO.2010.5447024","url":null,"abstract":"From May 2 through May 7 of 2008, the Autonomous Landing and Hazard Avoidance Technology (ALHAT) Exploration Technology Development Program carried out a helicopter field test to assess the use of a flash LIDAR as a primary sensor during lunar landing. The field test data has been used to evaluate the performance of the LIDAR system and of algorithms for LIDAR Hazard Detection and Avoidance, Hazard Relative Navigation, and Passive Optical Terrain Relative Navigation. Reported here is a comprehensive description of the field test hardware, ground infrastructure and trajectory reconstruction methodologies1,2.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122256084","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: 26
A new analytical model of a radial turbine and validation by experiments 一种新的径向水轮机解析模型及实验验证
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446764
H. Pourfarzaneh, A. Hajilouy-Benisi, M. Farshchi
{"title":"A new analytical model of a radial turbine and validation by experiments","authors":"H. Pourfarzaneh, A. Hajilouy-Benisi, M. Farshchi","doi":"10.1109/AERO.2010.5446764","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446764","url":null,"abstract":"In the conceptual design phase of a turbocharger, where emphasis is mainly on parametric studies, before manufacturing and tests, a generalized and robust model that applies over a wide range properly, is unavoidable. 12The critical inputs such as turbine maps are not available during the conceptual design phase. Hence, generalized turbine models use alternate methods that work without any supplementary tests and can operate over wide ranges. One of the common and applicable modeling methods in design process is ‘Dimensionless Modeling’ using the constant coefficient scaling (CCS). This method can almost predict the turbine characteristics at the design point. However, at off-design conditions, the error goes up as mass flow and speed parameters increase. Therefore, the results are not reliable at these points. In this paper, a variable coefficient scaling (VCS) method is described. Then, a radial turbine is modeled using the VCS method. To evaluate the model and compare it with the experimental results, some supplementary experiments are performed. Experimental studies are carried out on the turbine of a S2B model of the Schwitzer turbocharger in the turbocharger Lab., at Sharif University of Technology. The comparison between the experimental results and those obtained by the VCS method indicates good agreement. It also suggests that the present model can be used as an effective design tool for all operating conditions.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114138324","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: 2
Hub and Spoke BGP: Leveraging multicast to improve wireless inter-domain routing Hub and Spoke BGP:利用组播来改进无线域间路由
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446936
Joshua Train, B. Etefia, Harley Green
{"title":"Hub and Spoke BGP: Leveraging multicast to improve wireless inter-domain routing","authors":"Joshua Train, B. Etefia, Harley Green","doi":"10.1109/AERO.2010.5446936","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446936","url":null,"abstract":"Satellite payloads and wireless cell/broadband towers are being designed and deployed to simultaneously provide backbone network connectivity for hundreds to thousands of end-user networks. Hence, large wireless “hub and spoke” networks are created. In order to allow user-networks to utilize their own IP address space, hub nodes must distribute user routes throughout the hub and spoke network utilizing a common network routing protocol such as Border Gateway Protocol (BGP). RFC 4271 compliant BGP, also known as BGPv4, is not optimized to take advantage of the multicast capabilities of a wireless channel. In this paper we show that given a wireless hub and spoke network running BGP with N spokes, system wide bandwidth savings from O(N2) to O(N) can be gained through multicasting the BGP routing messages. We will first present an analytical model with equations that explain our hypothesis, and then introduce a multicast version of BGP called Hub and Spoke BGP. We present a comparison study of large scale hub and spoke emulations utilizing both standard BGP and our multicast-capable version, validating the bandwidth savings.1 2","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"75 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114161101","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: 7
Markov analysis of human-in-the-loop system performance 人在环系统性能的马尔可夫分析
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446860
S. Bortolami, K. Duda, N. Borer
{"title":"Markov analysis of human-in-the-loop system performance","authors":"S. Bortolami, K. Duda, N. Borer","doi":"10.1109/AERO.2010.5446860","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446860","url":null,"abstract":"Pilot interaction with complex vehicles involves information perception and understanding, as well as decision making to select and execute the desired action. These decisions and actions are often time-critical and require an accurate response. When designing a complex system, the analysis of human-in-the-loop system performance is important during early-stage system design to assess the impact of varying levels of automation, redundancy, and task allocation. We have integrated several human performance models with a model of a piloted vehicle to analyze human-in-the-loop performance using Draper Laboratory's Performance and Reliability Analysis via Dynamic Modeling (PARADyM) toolkit. This approach provides a framework for understanding the effects of a vehicle component failure or human error as it propagates through a complex system. Vehicle and human performance models, which include a model of the Space Shuttle Orbiter lateral flight dynamics, visual and vestibular perception, rule-based judgment and decision making, and pilot action, were implemented using MATLAB/Simulink?. Trajectory scenarios were simulated for analysis with and without instrumentation failures, and with and without human errors. The resulting pilot-vehicle performance during scenarios with a component failure was compared to a baseline (no failure) trajectory. Performance thresholds were specified to determine whether the resulting vehicle trajectory represented degraded performance that was within the specified bounds (operational) or outside the bounds (resulting in system loss). At the present stage, this analysis methodology is viable as an early-stage design tool. However, if associated with experimentally validated models for both the human performance and vehicle dynamics, this approach has the potential for a mission and configuration design analysis tool.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116047249","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: 13
A 320 Mbps flexible image data compressor for space applications 用于空间应用的320mbps灵活图像数据压缩器
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446664
P. Winterrowd, Chad Orbe, J. Venbrux, S. Whitaker, E. Cameron, R. Nelson, G. Maki, D. Fisher, P. Yeh
{"title":"A 320 Mbps flexible image data compressor for space applications","authors":"P. Winterrowd, Chad Orbe, J. Venbrux, S. Whitaker, E. Cameron, R. Nelson, G. Maki, D. Fisher, P. Yeh","doi":"10.1109/AERO.2010.5446664","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446664","url":null,"abstract":"A 320 Mbps radiation-tolerant image data compression application specific integrated circuit (ASIC) chip set has been developed. 12The ASIC chip set implements the Consultative Committee for Space Data Systems (CCSDS) recommendation for Image Data Compression. It is applicable to both near-Earth push-broom3 sensors as well as frame sensors used in exploration and deep space applications. The compressor can process sensor data in both lossless and lossy compression modes.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"352 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115980592","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: 15
Application of hierarchical accident model in independent verification and validation 分层事故模型在独立验证中的应用
2010 IEEE Aerospace Conference Pub Date : 2010-03-06 DOI: 10.1109/AERO.2010.5446810
R. Ujiie, M. Katahira, Tsutomu Matsumoto, A. Katoh, Shogo Ujihara
{"title":"Application of hierarchical accident model in independent verification and validation","authors":"R. Ujiie, M. Katahira, Tsutomu Matsumoto, A. Katoh, Shogo Ujihara","doi":"10.1109/AERO.2010.5446810","DOIUrl":"https://doi.org/10.1109/AERO.2010.5446810","url":null,"abstract":"The software independent verification and validation (IV&V) is essential, especially in the development of aerospace systems, to improve safety and reliability and to prevent system problems. 12 We have used a hierarchical accident method. This method investigates the latent problems in the development process of a system that have not been thoroughly recognized in past IV&V.","PeriodicalId":378029,"journal":{"name":"2010 IEEE Aerospace Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121166927","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: 2
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信