NINETEENTH CENTURY MUSIC最新文献

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Protecting GPS availability from EMI 保护GPS免受EMI干扰
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886928
G. Fuller, K. Horton
{"title":"Protecting GPS availability from EMI","authors":"G. Fuller, K. Horton","doi":"10.1109/DASC.2000.886928","DOIUrl":"https://doi.org/10.1109/DASC.2000.886928","url":null,"abstract":"This paper presents a scenario for protecting aircraft installed GPS systems from on-board portable electronic device emissions. A summary of data collected on aircraft GPS systems susceptibility from on-board and nearby external sources is presented. Included is data taken at the FAA Tech Center on a CV580 and B727 aircraft in 1997 and 1998 under the Office of Aviation Security R&D. Additional, data will be collected from commercial fleet data taken at Delta Air Lines and United Airlines in 1999 and 2000. Other potential scenarios involving aircraft ground safety and emergency service response to aircraft on ground accidents are offered. The application of the susceptibility data to these scenarios is currently under consideration within the airline community.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"19 1","pages":"3C2/1-3C2/7 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89256744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Analysis of memory bit errors induced by electromagnetic interference in closed-loop digital flight control systems 闭环数字飞控系统中电磁干扰引起的存储器误码分析
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886931
O. González, W. Gray, S. Patilkulkarni
{"title":"Analysis of memory bit errors induced by electromagnetic interference in closed-loop digital flight control systems","authors":"O. González, W. Gray, S. Patilkulkarni","doi":"10.1109/DASC.2000.886931","DOIUrl":"https://doi.org/10.1109/DASC.2000.886931","url":null,"abstract":"This paper employs mean square stability conditions for worst case and random memory bit-errors caused by high intensity electromagnetic (EM) disturbances to determine EM susceptibility of flight control systems. The perturbed closed-loop system is represented as a jump linear discrete-time system. This model is compared to other types of linear parameter varying representations. Two tests for EM susceptibility are presented and applied to a simple flight controller example. The second test, which uses the random bit-error interference model, is shown to be less conservative.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"61 1","pages":"3C5/1-3C5/9 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88018154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Managed aircraft wiring health directly relates to improved avionics performance 管理飞机布线健康直接关系到航空电子设备性能的提高
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886926
C. Teal, C. Satterlee
{"title":"Managed aircraft wiring health directly relates to improved avionics performance","authors":"C. Teal, C. Satterlee","doi":"10.1109/DASC.2000.886926","DOIUrl":"https://doi.org/10.1109/DASC.2000.886926","url":null,"abstract":"Nonintrusive test equipment is now available that can test aircraft wiring including any type of insulation or shielding. The test equipment can identify fault location within several centimeters and compare the examined wire performance to new wiring specifications regardless of type. The information gained from this test is then compared to a database of other aircraft as part of the management of the health of the wiring circuits, assessing risk due to wiring faults and planning for various maintenance and management decisions. The equipment can identify certain cost centers providing one aspect in the measure of total ownership cost for the aircraft. The average age of the commercial air fleet has exceeded 12 years with 2500 aircraft exceeding their design service objective, some exceeding 35 years of age. The forecasts indicate that both of these numbers will continue to increase over the next several decades. The down side of the aging process is that inspections methods in use today for examining the condition of aircraft wiring are only 25% effective and then only where the wire can be easily examined. This has placed special emphasis on wire testing, electronic system husbandry, improved testing methods and new wire system designs to ensure cost effective maintenance and improved safety. This has also resulted in the FAA starting to issue guidance for electrical systems as part of their aging aircraft program. In the past extending the safe and useful life of the aircraft has focused only on aircraft structure.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"4 1","pages":"3B6/1-3B6/6 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88430852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Path loss measurements on cylindrical sections. Determining path loss variations with distance and radius at VHF, L band, and GPS/SatCom 圆柱形截面的路径损耗测量。确定VHF、L波段和GPS/SatCom的路径损耗随距离和半径的变化
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886924
G. Fuller
{"title":"Path loss measurements on cylindrical sections. Determining path loss variations with distance and radius at VHF, L band, and GPS/SatCom","authors":"G. Fuller","doi":"10.1109/DASC.2000.886924","DOIUrl":"https://doi.org/10.1109/DASC.2000.886924","url":null,"abstract":"This paper presents one task that is part of an ongoing effort to understand the path losses between emitting sources in and around commercial aircraft to the ComNav systems. Understanding the path loss is the key item in being able to accurately assess and predict the susceptibility of operational ComNav systems on commercial aircraft from portable electronic device emissions.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"62 1","pages":"3B3/1-3B3/7 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90627869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Structural health monitoring: degradation mechanisms and system requirements 结构健康监测:退化机制和系统要求
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.884907
T. Munns, R. Kent
{"title":"Structural health monitoring: degradation mechanisms and system requirements","authors":"T. Munns, R. Kent","doi":"10.1109/DASC.2000.884907","DOIUrl":"https://doi.org/10.1109/DASC.2000.884907","url":null,"abstract":"An understanding of potential damage mechanisms, structural design criteria and fail-safe features, structural maintenance philosophy is needed in order to develop a sensor-based system to effectively monitor structural condition. The purpose of this paper is to review the primary aging mechanisms in current aging aircraft, identify a sensing and data management strategy to monitor aircraft structure, and describe analytical tools and technological development needed to implement structural health monitoring on commercial transport aircraft.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"140 1","pages":"6C2/1-6C2/8 vol.2"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77594990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 29
The human element in Automatic Dependent Surveillance-Broadcast flight operations 自动相关监视-广播飞行操作中的人为因素
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.884888
G. Livack, J. I. McDaniel, V. Battiste, W. Johnson
{"title":"The human element in Automatic Dependent Surveillance-Broadcast flight operations","authors":"G. Livack, J. I. McDaniel, V. Battiste, W. Johnson","doi":"10.1109/DASC.2000.884888","DOIUrl":"https://doi.org/10.1109/DASC.2000.884888","url":null,"abstract":"The paper discusses some of the technical and institutional human factors-related issues surrounding the subject of the human element in ADS-B flight operations. It also proposes a procedural-based rule-making strategy. This strategy would facilitate further development and implementation of the human factors and enabling flight technical standards and operational procedures needed to make free flight acceptable to the pilot, controller, the user community, and to the certification authorities. The principal finding of this paper is that we are now at the brink of having sufficient knowledge from which to develop a new set of operating rules-free flight operational rules of engagement-termed electronic (or extended) flight rules.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"44 1","pages":"5D4/1-5D412 vol.2"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77899551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Fiber ultrasonics for health monitoring of composites 复合材料健康监测用纤维超声
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.884913
R. Kent
{"title":"Fiber ultrasonics for health monitoring of composites","authors":"R. Kent","doi":"10.1109/DASC.2000.884913","DOIUrl":"https://doi.org/10.1109/DASC.2000.884913","url":null,"abstract":"The testing results presented validated the proof-of-concept hypothesis that the waveform attributes of an ultrasonic wave propagated through a suitable fiber ultrasonic waveguide embedded in an E-glass/epoxy FRPC coupon can be effectively used to: detect and monitor changes related to cure state and cure behavior; and, detect and characterize damage conditions resulting from discrete source impacts in composites.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"10 1","pages":"6D3/1-6D3/6 vol.2"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78983054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The safe zone for paired closely spaced parallel approaches: implications for procedures and automation 成对紧密间隔平行方法的安全区:对程序和自动化的影响
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886940
Steven Landry, A. Pritchett
{"title":"The safe zone for paired closely spaced parallel approaches: implications for procedures and automation","authors":"Steven Landry, A. Pritchett","doi":"10.1109/DASC.2000.886940","DOIUrl":"https://doi.org/10.1109/DASC.2000.886940","url":null,"abstract":"Changes to air traffic control procedures and requirements for on-board automated systems can be investigated by examining the dynamics of collision potential between two proximate aircraft along closely spaced parallel approaches (CSPA). For these aircraft, there exist relative aircraft positions and trajectories that can-and cannot-provide separation assurance and wake avoidance. These relative positions comprise a \"safe zone\" (an area in which separation assurance and wake is provided), which depends on aircraft dynamics, pilot performance, alerting system performance, wake transport mechanics, and a determination about the blunders for which protection should be afforded. A systematic evaluation of the dynamics of the safe zone was performed, with implications for the design of paired CSPA procedures.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"79 1","pages":"3E3/1-3E3/8 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86622290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Reconfiguration of flight control systems for actuator failures 针对执行器故障的飞行控制系统重构
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886932
G. Bajpai, B. Chang, A. Lau
{"title":"Reconfiguration of flight control systems for actuator failures","authors":"G. Bajpai, B. Chang, A. Lau","doi":"10.1109/DASC.2000.886932","DOIUrl":"https://doi.org/10.1109/DASC.2000.886932","url":null,"abstract":"We consider the problem of designing fault tolerant control for transient failures in the flight control system caused by harsh electromagnetic environments. We examine principles of fault tolerant design, and discuss integrated local supervisory control of these systems. As an example, we present a sample design of a control mixer to achieve fault tolerance in the event of failures in the actuators.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"21 1","pages":"3C6/1-3C6/6 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86658642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
Integrated icing diagnostic algorithm assessment at regional airlines 区域航空公司综合结冰诊断算法评估
IF 0.4 1区 艺术学
NINETEENTH CENTURY MUSIC Pub Date : 2000-10-07 DOI: 10.1109/DASC.2000.886938
D. Sims, C. Fidalgo, T. Carty
{"title":"Integrated icing diagnostic algorithm assessment at regional airlines","authors":"D. Sims, C. Fidalgo, T. Carty","doi":"10.1109/DASC.2000.886938","DOIUrl":"https://doi.org/10.1109/DASC.2000.886938","url":null,"abstract":"Aircraft icing is a major aviation safety hazard and has been linked to numerous aircraft accidents. In an attempt to reduce the hazards to aviation, research and development activities have been aimed at providing timely and accurate icing detection and forecasts. A number of techniques have been combined into an integrated icing diagnostic algorithm (IIDA) that makes use of the strengths of individual algorithms while minimizing their respective weaknesses. An assessment of IIDA was conducted at two regional airlines. Regional airlines are often overlooked in the design and implementation of new weather products despite the fact that regional air traffic accounts for a significant number of air travellers. Icing is especially problematic for these airlines given that a greater percentage of their aircraft fly at lower altitudes where icing is prevalent. It is envisioned that a product like IIDA may be of benefit to regional airlines which often have few information sources and little or no available on-site meteorological expertise. Thus, the IIDA assessment focused on the utility and perceived benefit of IIDA to regional airlines. Specific objectives of the assessment were to determine the utility of IIDA; assess human computer interface issues; identify potential benefit areas; and identify potential IIDA enhancements.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":"15 1","pages":"3E1/1-3E1/6 vol.1"},"PeriodicalIF":0.4,"publicationDate":"2000-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80677546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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