2007 IEEE Aerospace Conference最新文献_第2页

Third Update to the Order 7 de Bruijn Weight Class Distribution 第三次更新订单7德布鲁因重量等级分布

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352935

G. Mayhew

引用次数: 7

Automating the Pluto Experience: An Examination of the New Horizons Autonomous Operations Subsystem 自动化冥王星经验:新视野自主操作子系统的检验

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352645

B. Bauer, W. M. Reid

{"title":"Automating the Pluto Experience: An Examination of the New Horizons Autonomous Operations Subsystem","authors":"B. Bauer, W. M. Reid","doi":"10.1109/AERO.2007.352645","DOIUrl":"https://doi.org/10.1109/AERO.2007.352645","url":null,"abstract":"New Horizons is a NASA sponsored mission to explore Pluto and its largest moon Charon. The New Horizons spacecraft, designed, built and operated by the Johns Hopkins University Applied Physics Laboratory (APL), was successfully launched in January 2006. New Horizon's closest encounter with Pluto will occur in the summer of 2015. Upon completion of its primary science objectives at the Pluto encounter, the spacecraft is expected to visit one or more Kuiper Belt objects in the outermost region of the solar system. This long duration mission requires high reliability and imposes some demanding fault management requirements upon the spacecraft. The spacecraft is highly redundant with onboard software that provides a rule based expert system for performing autonomous fault detection and recovery. Generally referred to as Autonomy, this software's design was largely driven by two factors, the concept of operations for the mission and the level of redundancy in the spacecraft hardware. This paper examines the unique mission requirements that drove the Autonomy design. It discusses how the Autonomy system supports all of the various phases of the mission and provides examples of how unique mission requirements of the New Horizons mission were implemented.","PeriodicalId":6295,"journal":{"name":"2007 IEEE Aerospace Conference","volume":"78 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2007-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74496334","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: 8

Terrain Adaptive Navigation for Mars Rovers 火星探测器地形自适应导航

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352684

D. Helmick, A. Angelova, M. Livianu, L. Matthies

引用次数: 20

Effect of Improving Accuracy of Load Monitoring on Aircraft Probability of Failure 提高载荷监测精度对飞机故障概率的影响

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352911

Y. Macheret, P. Koehn

引用次数: 4

Onboard Autonomous Rover Science 机载自动漫游车科学

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352700

Rebecca Castaño, T. Estlin, D. Gaines, C. Chouinard, B. Bornstein, Robert C. Anderson, Michael Burl, David Thompson, A. Castano, M. Judd

引用次数: 36

Control Authority Network Analysis Applied to Lunar Outpost Deployment 月球前哨部署中的控制权限网络分析

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352924

K. Alemany, E. Morse, R. Easter

引用次数: 0

Modeling and Analysis of a Mechatronic Actuator System by Using Bond Graph Methodology 基于键合图方法的机电作动器系统建模与分析

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.353093

M. H. Toufighi, S. Sadati, F. Najafi

引用次数: 10

Raman/CHAMP Instrument for Lunar In-situ Resource Prospecting I - Imager Design 月球原位资源勘探Raman/CHAMP仪器-成像仪设计

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352775

G. Mungas, C. Sepulveda, Kenneth R. Johnson, Michael Pelletier, C. L. Baw, J. Boynton, M. Anderson

{"title":"Raman/CHAMP Instrument for Lunar In-situ Resource Prospecting I - Imager Design","authors":"G. Mungas, C. Sepulveda, Kenneth R. Johnson, Michael Pelletier, C. L. Baw, J. Boynton, M. Anderson","doi":"10.1109/AERO.2007.352775","DOIUrl":"https://doi.org/10.1109/AERO.2007.352775","url":null,"abstract":"Lunar ISRU precursor prospecting missions are being considered in order to characterize the lunar surface environment and to determine volatile and mineral content as well as mechanical and thermal properties of the lunar regolith for purposes of designing future excavation and In-Situ Resource Utilization (ISRU) processing equipment. The Raman/CHAMP instrument (RCI) is being developed as part of an instrument/experiment suite development project known as Regolith and Environment Science and Oxygen and Lunar Volatile Extraction (RESOLVE) being developed and sponsored under the NASA ISRU Project. The RCI supports the lunar surface characterization measurements by providing crucial field macroscopic and microscopic images coupled with Raman spectroscopy. The RCI provides the ability to collect high resolution, hand lens to field microscopy images and spectroscopic measurements from a robotic arm with the ability to resolve, characterize, and chemically differentiate >90% of lunar Apollo fines. The entire measurement process is highly adaptive and does not necessarily require any type of active sampling. In this paper we provide an overview of the RCI. We discuss the optical design optimization and analysis process for this particular type of instrument. We discuss recent results of integration tests of the Mars Microbeam Raman Spectrometer (MMRS) with the MIDP CHAMP instrument, fluorescence analysis, and individual glass fluorescence tests. Finally, we conclude with a summary of anticipated instrument measurement performance based on Zemax optical modeling of an RCI engineering model that is currently in development.","PeriodicalId":6295,"journal":{"name":"2007 IEEE Aerospace Conference","volume":"46 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2007-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80850391","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

ISHM & Design: A review of the benefits of the ideal ISHM system ISHM与设计:对理想ISHM系统的好处的回顾

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352834

J.H. MacConnell

{"title":"ISHM & Design: A review of the benefits of the ideal ISHM system","authors":"J.H. MacConnell","doi":"10.1109/AERO.2007.352834","DOIUrl":"https://doi.org/10.1109/AERO.2007.352834","url":null,"abstract":"This paper summarizes the results of the Integrated Systems Health Management Design Study, performed by Consensus Technology, LLC for the Wright Brothers Institute, Inc., under contract with The Air Force Research Labs (CPO 9012). To define the overall scope and key research areas of a possible cross technical directorate effort in Integrated Systems Health Management (ISHM), a team of health management experts from the Air Force, industry and academia was assembled to explore the design related benefits of ISHM. This team defined a set of scenarios made possible by the ideal ISHM system. These scenarios and the technologies associated with them were evaluated for their system impact, design impact, innovativeness and timeliness. The scenarios were grouped into four benefit categories and the technology needs associated with the scenarios defined. The result is a prioritized set of technology development needs linked to specific benefits and scenarios. The benefits of the ideal ISHM system were quantified from a cost and capability perspective based on the specific scenarios and data provided by the participants. The collected benefits provide a compelling rationale for pursuing the development of fully integrated ISHM design capability and the technology development defined in the study. Finally, the study developed a proposal for specific next steps, connecting the individual technology development needs with an overarching program direction and set of midterm demonstrations to support that development.","PeriodicalId":6295,"journal":{"name":"2007 IEEE Aerospace Conference","volume":"19 1","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2007-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80944754","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: 27

Hardware-Accelerated Parser for Extraction of Metadata in Semantic Network Content 语义网络内容中元数据提取的硬件加速解析器

2007 IEEE Aerospace Conference Pub Date : 2007-03-03 DOI: 10.1109/AERO.2007.352793

J. Moscola, Young-Hee Cho, J. Lockwood

{"title":"Hardware-Accelerated Parser for Extraction of Metadata in Semantic Network Content","authors":"J. Moscola, Young-Hee Cho, J. Lockwood","doi":"10.1109/AERO.2007.352793","DOIUrl":"https://doi.org/10.1109/AERO.2007.352793","url":null,"abstract":"We have implemented a new network information processing system using reconfigurable hardware that scans volumes of data in real-time. One of the key functions of the system is to extract semantic information. Before we can determine the meaning of text, we must identify its language. In a previous project, we have implemented an N-gram based language identifier that can process up to 1 Gbps throughput. However, a large percentage of computer network traffic, such as email and Web data, consists of markup information such as tags and protocol specific options. This additional data interferes with the language identification process causing decreased accuracy. Thus, we developed a hardware architecture for configurable application level processing. Our Application Level Processing System (ALPS) is a custom processor that is automatically generated using syntactic structure of the content. The resulting circuit is mapped on to a reconfigurable device to efficiently extract only the relevant data for the language identifier. To illustrate the effectiveness of the architecture, we have implemented a system that can process electronic mail. Our experiments show that ALPS can improve the accuracy of the hardware language identifier by up to a factor of 200 as compared to a system that does not decode the application-level protocol data.","PeriodicalId":6295,"journal":{"name":"2007 IEEE Aerospace Conference","volume":"151 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2007-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79541767","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: 8