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AIAA Space and Astronautics Forum and Exposition, 2018

作者： Aaseng, Gordon B. Frank, Jeremy D. Iatauro, Michael Knight, C. Levinson, Richard Ossenfort, John Scott, Michael Sweet, Adam Csank, Jeffrey Soeder, James Carrejo, Daniel Loveless, Andrew T. Ngo, Tam Greenwood, Zachary NASA Ames Research Center Moffett Field Intelligent Systems Division M/S/269 CA94035-1000 United States NASA Ames Research Center Moffett Field Intelligent Systems Division M/S 269-1 CA94035-1000 United States NASA Glenn Research Center Power Management and Distribution M/S 301-5 21000 Brookpark Rd ClevelandOH44135 United States NASA Glenn Research Center Power Division M/S 301-5 21000 Brookpark Rd ClevelandOH44135 United States NASA Johnson Space Center Systems Engineering and Test Branch 2101 E NASA Pkwy HoustonTX77058 United States NASA Johnson Space Center Command and Data Handling Branch 2101 E NASA Pkwy HoustonTX77058 United States NASA Johnson Space Center Spacecraft Software Engineering Branch 2101 E NASA Pkwy HoustonTX77058 United States NASA Marshall Space Flight Center Redstone Arsenal Environmental Control and Life Support Systems Branch ES62 HuntsvilleAL35812 United States

ISBN: (数字)9781624105753

ISBN: (纸本)9781624105753

As the increased distance between Earth-based mission control and the spacecraft results in increasing communication delays, small crews cannot take on all functions performed by ground today, and so vehicles must be more automated to reduce the crew workload for such missions. In addition, both near-term and future missions will feature significant periods when crew is not present, meaning the vehicles will need to operate themselves autonomously. NASA’s Advanced Exploration systems Program pioneers new approaches for rapidly developing prototype systems, demonstrating key capabilities, and validating operational concepts for future human missions beyond low-Earth orbit. Under this program, NASA has developed and demonstrated multiple technologies to enable the autonomous operation of a dormant space habitat. These technologies included a fault-tolerant avionics architecture, novel spacecraft power system and power system controller, and autonomy software to control the habitat. The demonstration involved simulation of the habitat and multiple spacecraft sub-systems (power storage and distribution, avionics, and air-side life-support) during a multi-day test at NASA’s Johnson Space Center. The foundation of the demonstration was ‘quiescent operations’ of a habitat during a 55 minute eclipse period. For this demonstration, the spacecraft power distribution system and air-side life support system were simulated at a high level of fidelity;additional systems were managed, but with lower fidelity operational constraints and system behavior. Operational constraints for real and simulated loads were developed by analyzing on-orbit hardware and evaluating future Exploration capable technology. A total of 13 real and simulated loads were used during the test. Eight scenarios including both nominal and off-nominal conditions were performed. Over the course of the test, every application performed its desired functions successfully during the simulated tests. The results wil

关键词： NASA

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Inflatable habitat health monitoring: Implementation, lessons learned, and application to lunar or Martian habitat health monitoring

Inflatable habitat health monitoring: Implementation, lesson...

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作者： Rojdev, Kristina Hong, Todd Hafermalz, Scott Hunkins, Robert Valle, Gerard Toups, Larry NASA Johnson Space Center Houston TX 77058 United States NASA-JSC Systems Architecture and Integration Office University of Southern California - Astronautical Engineering MC: EA-341 2101 NASA Parkway Houston TX 77058 United States Project Management Office MC: EV17 2101 NASA Parkway Houston TX 77058 United States NASA-JSC Avionics Systems Division Electromagnetic Systems Branch MC: EV4 2101 NASA Parkway Houston TX 77058 United States ESCG Electronics and Software Systems NASA-JSC MC: JE22 2101 NASA Parkway Houston TX 77058 United States Systems Architecture and Integration Office NASA-JSC MC: EA-3 2101 NASA Parkway Houston TX 77058 United States Constellation Program Lunar Surface Systems Project Office NASA-JSC MC: ZS1 2101 NASA Parkway Houston TX 77058 United States

ISBN: (纸本)9781563479793

NASA's exploration mission is to send humans to the Moon and Mars, in which the purpose is to learn how to live and work safely in those harsh environments. A critical aspect of living in an extreme environment is habitation, and within that habitation element there are key systems which monitor the habitation environment to provide a safe and comfortable living and working space for humans. Expandable habitats are one of the options currently being considered due to their potential mass and volume efficiencies. This paper discusses a joint project between the National Science Foundation (NSF), ILC Dover, and NASA in which an expandable habitat was deployed in the extreme environment of Antarctica to better understand the performance and operations over a one-year period. This project was conducted through the Innovative Partnership Program (IPP) where the NSF provided the location at McMurdo Station in Antarctica and support at the location, ILC Dover provided the inflatable habitat, and NASA provided the instrumentation and data system for monitoring the habitat. The outcome of this project provided lessons learned in the implementation of an inflatable habitat and the systems that support that habitat. These lessons learned will be used to improve current habitation capabilities and systems to meet the objectives of exploration missions to the moon and Mars.

关键词： NASA

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Enhancing scenario-centric air traffic control training

Enhancing scenario-centric air traffic control training

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AIAA Modeling and Simulation Technologies Conference, 2018

作者： Chhaya, Bharvi Jafer, Shafagh Coyne, William B. Thigpen, Neal C. Durak, Umut Embry-Riddle Aeronautical University Daytona BeachFL32114-3900 United States Academy Oklahoma City OK73169 United States Institute of Flight Systems Braunschweig38108 Germany Department of Electrical Computer Software and Systems Engineering Embry-Riddle Aeronautical University - Daytona Beach Campus Lehman 343 600 S Clyde Morris Blvd Daytona BeachFL32114-3900 United States Air Traffic Management Embry-Riddle Aeronautical University Daytona Beach Campus 600 S Clyde Morris Blvd Daytona BeachFL32114-3900 United States Air Traffic Division AMA-511C Staff Office Training Branch Enroute Section Advanced Enroute Operations Unit Mike Monroney Aeronautical Center 6500 South MacArthur Blvd Oklahoma CityOK73169 United States Flight Dynamics and Simulation Lilienthalplatz 7 Braunschweig38108 Germany

ISBN: (数字)9781624105289

ISBN: (纸本)9781624105289

As one of the main focuses of Federal Aviation Administration (FAA) Academy, Air Traffic Control (ATC) training program heavily relies on simulation-based training and is constantly looking into optimizing the use of such technologies. On the other hand, ATC simulation scenarios are not only used for training purposes, but also are key components for conducting human performance experiments. From a recent visit at the FAA Academy, it is well apparent that there is an immediate need for a diverse pool of ATC training scenarios available to trainees off-site. Currently, training scenarios are generated manually from a subject-matter-expert’s (i.e. controllers) oral or written briefing. The effort in extracting and verifying operational scenarios and translating them into a machine-understandable language is rather cumbersome and currently conducted completely manual. To address these challenges, here we propose to develop a scenario exploration technology that provides a platform for FAA Academy trainees and instructors to exercise variety of scenarios in the ATC domain. The proposed technology provides a platform for instructors and trainees to explore various training exercises. By taking a model-driven approach and extending the recently proposed domain-specific Aviation Scenario Definition Language (ASDL), we provide ATC scenario specification and exploration platform to easily create a variety of ATC scenarios. Similar to ASDL approach, we first define an ontology for ATC extension, then specify scenario logic using a formal specification language such as statechart, and finally, include a metamodel to allow for scenario modeling. © 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Air traffic control

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ADVANCED AVIONICS architecture - THE NAVAIR STUDY

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NAVAL ENGINEERS JOURNAL 1994年第6期106卷 31-40页

作者： KATZ, RS JAHNKE, L JEWETT, CE Cdr. Larry Jahnke USN:is presently Head of the Architecture Branch of the Avionics Engineering division AIR-546 of the Naval Air Systems Command. Among his current responsibilities is to lead implementation activities of the NAVAIR Advanced Avionics Architecture study described in this paper. Cdr. Jahnke graduated from the University of Minnesota with a B.S. degree in aeronautical engineering and was commissioned in 1974. After flight training as a Naval flight officer he was assigned to Naval Air Station Barbers Point Hawaii where he served as Tactical Coordinator for P-3B aircraft. He was assigned to the Communications Directorate of the Joint Staff in 1990 where he participated in support of Desert Shield/Desert Storm and was part of the original cadre of officers responsible for the “C41 for the Warrior” concept. Cdr. Jahnke also has a Master of Science degree from the University of Southern California and is a 1990 graduate of the Industrial College of the Armed Forces. Cdr. Charles E. Jewett USN:is currently the Common Avionics Requirements Officer for Naval Aircraft Programs. He has served the Navy as an Aeronautical Engineering Duty Officer since 1982 with previous defense acquisition assignments as the Avionics Architecture and Engineering Branch Head Fighter/Attack Avionics systems Engineering Branch Head and A-12 Avionics Officer and A-6F Deputy Program Manager and the A-6 Avionics Officer. Cdr. Jewett entered the Navy as an Aviation Officer Candidate in 1971 receiving his commission and earning his wings as a Naval Flight Officer the same year. After graduating from the U.S. Naval Test Pilot School in 1976 he was assigned to the Strike Aircraft Test Directorate of the Naval Air Test Center where he participated in various electronic warfare electro-optics and software update evaluations for A-6 EA-6B and OV-10 aircraft. In Cdr. Jewett's previous assignment at NAVAIRSYSCOM he led a major Avionics Architecture Study (the subject of this paper) that surveyed cutting-edge avionics technol

To establish a planning basis for future avionics systems, the Naval Air systems Command (NAVAIR) conducted an avionics architecture investigation during 1992-1993, culminating in a final report published in August 1993. In the course of the study, U.S. Industry provided significant information to a NAVAIR avionics database for both technologies and systems integration methods. From the study emerged an implementation strategy to allow NAVAIR to develop effective avionics systems in the future that use commercial products and standards where applicable but also allow the ready use of new and emerging technologies. Recommended strategies concentrate on the development process, especially the use of sound systems engineering techniques and the maximum practical use of commercial standards and products. This paper reviews the methodology employed during the NAVAIR investigation, and presents the key findings and resulting implementation strategies. The paper concludes with a brief summary of current implementation plans at NAVAIR.

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EMI - THE ENEMY WITHIN

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NAVAL ENGINEERS JOURNAL 1992年第2期104卷 69-80页

作者： BARON, NT CEBULSKI, DR Neil T. Baronis currently the team leader for the combat system topside design work for amphibious assault auxiliary mine warfare and Coast Guard ships. He sits on the IEEE SCC-28 Committee for personnel radiation hazards and is extensively involved in the EM engineering initiative at NavSea. Mr. Baron has lectured at the MIT Summer Professional Series on the subject of electromagnetic interference. While attending Marquette University he started his career with the Navy as a coop student supporting personnel radiation hazard assessments. After graduating with a BS in bio-medical engineering he took an electronics engineer position in the Systems Electromagnetic Division. Since then he has lectured on Navy training films and has developed several software packages which have pushed the state-of-the-art in EMI assessment. Mr. Baron has prepared several reports and professional papers. He has worked on several professional committees and in February of 1991 was awarded the “Young Engineer of the Year Award” which was presented by the D.C. Council of Engineering and Architectural Societies. Donald R. Cebulskiis currently the head of the Topside Design Division in the Naval Sea Systems Command Weapons and Combat System Directorate. He graduated from the University of Michigan with a bachelor's degree in 1963 and a master's degree in 1977 both in naval architecture and marine engineering. He started his career in 1964 at the Bureau of Ships and joined the Aircraft Carrier Section of the Arrangements Branch in Hull Design. During the past 25 years he has included almost every naval ship type in his ship arrangement experience and in October of 1988 he transferred to the Topside Design and Integration Branch in the System Electromagnetics Division Sea 06. Mr. Cebulski has written several papers on ship arrangements computer aided design and ship topside design. He prepared and presented lectures at the MIT Professional Series on ship topside design and has served on many ASNE committees. He is currently the

Electromagnetic interference (EMI) is one of the major contributors to mission degradation in our fleet today due to the increase in population and sensitivity of both topside and below deck electronic systems. Sensitive combat systems designed to counter intelligent and deceptive targets can be confused by the complex intra-ship EM environment. This can cause identification failure or losing "track" of a hostile or incoming missile or even engaging "friendly targets." Topside design and integration efforts have been used to reduce EMI, but this is not the total solution to the problem. A program of total ship and system EMI assessment and control must be implemented. This program must exploit electromagnetic compatibility (EMC) optimization in electronic circuit design and take advantage of and (in some cases) direct topside shapes and structures to control the propagation of desired and undesired EM energy. Positive and active control of EM design characteristics are absolutely required before optimum combat system effectiveness can be realized. This paper will describe the current topside design process, EMC improvements being made, and how the process is being integrated into, and is dependent upon, the ship design process. It will give examples of some of the major mission degrading EMI problems in the fleet today and how past problems were solved with existing EM analysis programs. It will also discuss the control of EM energy in new design through the use of techniques being developed such as ray tracing and ray casting. The paper projects where the challenges lie for future topside and EM engineering designers and describes how the equipment technology transfer process must be better integrated to meet the challenge of effective EMI control.

关键词： Signal Interference

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