2007 IEEE/AIAA 26th Digital Avionics Systems Conference最新文献

{"title":"Future airline schedules for air traffic management concept analysis","authors":"M. Berge, John C. Haws, Craig A. Hopperstad, A. Haraldsdottir","doi":"10.1109/DASC.2007.4391878","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391878","url":null,"abstract":"An approach has been developed for creating future airline schedules suitable for air traffic management (ATM) concept analysis. This approach relies on 1) projections from the Boeing Commercial Airplane Current Market Outlook (CMO), 2) analysis of benchmark schedules represented by current/existing schedules as published in the Official Airline Guide (OAG), and 3) algorithms for realizing the future schedules in an \"optimal\" way. Additionally, methods have been developed for adjusting these schedules to account for differing assumptions concerning block times and pad. This paper describes these methodologies along with example results. The generated schedules have been used extensively to support ATM concept trade studies and benefits analyses.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"2 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132654219","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}

{"title":"A collisi on avoidance concept for VDL mode 2","authors":"S. Bretmersky, R. Apaza","doi":"10.1109/DASC.2007.4391907","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391907","url":null,"abstract":"The FAA is currently investigating the migration path to data-enabled digital air traffic services using VDL mode 2. Under certain loading conditions, simulations have shown that VDL mode 2 cannot meet future delay requirements with more than a few dozen aircraft per channel. Since the VDL radios must share limited spectrum with the current analog voice radios, this poses a problem during the transition period. Analysis has show that collisions of the transmitted data frames lead to retransmissions and increased delays. This paper investigates a method to reduce theses collisions through modification of the MAC protocol in the hope of increasing the capacity of a VDL mode 2 channel. Several possible future traffic profiles are used to compare the performance of the modified VDL mode 2 protocol against the standard. A discussion on the modifications necessary to implement these changes, along with interoperability issues with standard VDL mode 2 radios, is presented.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116901811","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}

{"title":"Derating concerns for microprocessors used in safety critical applications","authors":"H. Forsberg, T. Manefjord","doi":"10.1109/DASC.2007.4391855","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391855","url":null,"abstract":"The use of commercial-off-the-shelf (COTS) microprocessors for safety-critical applications usually implies derating of the device to make it work in harsh environment. This paper discusses derating concerns for state-of-the-art microprocessors. Issues addressed in the paper include noise margins due to low voltage levels, multiple power supplies, frequency and current derating concerns, error sources, timing degradation, power-aware architectures, and new advanced microprocessor derating features.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130465272","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}

{"title":"Design and simulation of multi function up front control panel for low combat aircraft","authors":"Rekha Rajaram","doi":"10.1109/DASC.2007.4391956","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391956","url":null,"abstract":"","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130501213","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}

{"title":"Cognitive Avionics Toolset For Operator State Classifacation Based On Physiological Signals","authors":"B. Keller","doi":"10.1109/DASC.2007.4391951","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391951","url":null,"abstract":"As we entered the field of airborne cognitive avionics, we quickly realized the data management challenges the field presents. We employ large number of data sensors including 128-channel EEG, electrocardiogram (EKG), galvanic skin response (GSR), pulse oximetry, skin temperature, respiration rate, thermal imaging and eye tracking. The sensors produce data at varying sampling rates and must be synchronized with each and with the aircraft state. Further, the sheer volume of data created (tens of gigabytes per run) creates analysis challenges of its own. This paper describes our solution to the data collection and analysis problem. We developed a software package called the cognitive avionics toolset (CATS). CATS facilitates multi-sensory operator state research.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130289536","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}

{"title":"Hover guidance display using perspective objects","authors":"H. Tsuda, K. Funabiki, H. Shirouzu","doi":"10.1109/DASC.2007.4391929","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391929","url":null,"abstract":"A helicopter hover guidance display that uses perspective objects was developed and evaluated by flight and simulator experiments. The display presents the pilot with the position of the helicopter on a horizontal situation (Map) display as well as on the FD (flight director) of a PFD (primary flight display). Several flight experiments using JAXA's research helicopter confirmed the usefulness of this guidance display. Next, the effects of some key display design parameters on flight director tracking performance and pilots' subjective ratings-the form of the flight director, field of view and whether the display was head-down or head-mounted-were investigated in a series of flight simulations.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125101508","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}

{"title":"Safety assessment of Chinese RVSM airspace with Multi- agent based simulation","authors":"Guan Zhimin, Zhang Jun, Z. Xuejun","doi":"10.1109/DASC.2007.4391893","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391893","url":null,"abstract":"RVSM (reduced vertical minimum separation) means reducing vertical minimum separation from 2000 feet to 1000 feet between FL290 (flight level) and FL410 (inclusive). However, it must be sure that it is safe to implement RVSM. The internationally accepted collision risk model-Reich model with a target level of safety is used to determine whether it is safe or not to implement RVSM. RVSM airspace includes discrete-event model and continuous-time model, while both the discrete-event model and continuous-time model are unable to simulate the airspace system accurately, Multi-agent based simulation can merge different types of simulation models into a combined simulation model. Therefore, this paper used multi-agent based simulation to establish several agent models and an environment model of Chinese RVSM airspace firstly, then through adopting the proper timing mechanisms, safety of Chinese RVSM airspace was estimated based on the internationally accepted collision risk model.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125783649","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}

{"title":"Aeronautical information and meteorological data-link services","authors":"S. Dubet","doi":"10.1109/DASC.2007.4391902","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391902","url":null,"abstract":"Aeronautical information and meteorological management is a key component of the International Civil Aviation Organization's (ICAO) global Air Traffic Management (ATM) operational concept. This global ATM concept is central to the Joint Planning and Development Office's (JPDO) Next Generation Air Transportation System (NGATS), and underlies Europe's Single European Sky ATM Research (SESAR) initiative. The availability of timely, accurate and relevant aeronautical and meteorological information in the cockpit is critical to the safe conduct of flight and forms the basis for Air Traffic Management (ATM) decision making. The data link of aeronautical and meteorological information will facilitate the creation of a common picture of the airspace situation for all flight crews, air traffic controllers and airline operations personnel. Change notifications and timely warnings and alerts of threats to the safe and efficient conduct of flight will be enabled by these services. The ultimate goal is to provide access to on-line, real-time, quality information and weather services to any aviation user, any time, anywhere. In this framework, this paper presents the operational services and the environment of the aeronautical Information management (AIM) and meteorological (MET) data-link services envisaged to be implemented over the next decade in both Europe and USA. It reflects the concepts and system performance requirements currently developed by a joint EUROCAE (WG-76) / RTCA (SC-206) Committee. The envisaged AIM data-link services are presented: aeronautical updates both in textual and graphical form, synchronization of aeronautical data between onboard and ground systems (exchange of permanent aeronautical data regardless of AIRAC cycles). The MET data-link services are also developed : weather planning, near-term and reactive decision services.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121982121","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}

{"title":"Complexity analysis in the next generation of air traffic management system","authors":"M. Cano, P. Sanchez-Escalonilla, M.M. Dorado","doi":"10.1109/DASC.2007.4391890","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391890","url":null,"abstract":"The SESAR operational concept is based on the move away from tactical to strategic management of flights. The predictive capabilities of the European ATM network will be improved with the objective of taking more strategic actions prior to departure. This process will be supported by 4D trajectory information, managed on a shared network. In this paper, we present a methodology to analyze and react to the expected traffic flows that will take advantage of this more predictive ATM network. The method consists of dynamically adapting the configuration of the sectors to the future situations by predicting not only the traffic flows but also the complexity of those flows. Currently, the traffic volume that can be managed into the sector is determined by the declared capacity or maximum number of incoming aircraft per hour. However, with the same number of incoming aircraft, the complexity of the traffic can vary over time with a significant impact to the controller's workload. Low traffic complexity can lead to situations of low cost efficiency, or other situations could lead to a degraded safety level because of an increase in the number of ATC interventions, traffic in evolution or weather conditions. The measurement of traffic complexity would allow a more efficient use of human resources by balancing workload among the operative sectors, an increase in the flexibility of the capacity management by adapting the sector boundaries to the expected situation, more efficient decisionmaking support to protect controller from overloads, and, possibly, an overall capacity gain by allowing to break free from conservative figures based on the number of aircraft per sector. These expected improvements have pushed Aena, Spain's Air Navigation Service Provider, to develop a new tool called eTLM (Enhanced Traffic Load Monitoring) to measure and react to the traffic complexity. eTLM is based on the continuous complexity that takes into consideration up-to-date data rather than historical demand. Every sector's complexity is measured in terms of the controller's workload from the present time through the next few hours by means of continuous Fast-Time Simulations of planned traffic. eTLM uses this information to dynamically adjust sector configurations to the real traffic situation. The best sectorisation is determined based on a predefined set of possible combinations, avoiding workloads higher than the maximum acceptable safety level, minimizing the number of open sectors and balancing workloads between the operative sectors. This methodology, together with the associated operational concept was validated at Aena. Several fast-time and real-time simulations were looped in order to analyze the applicability and benefits of this concept in the Spanish airspace. The first assessment was carried out by applying the current operational practices. The second step was the validation of a future operational environment with new technical enablers such as MTCD and CPDLC","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131317340","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}

{"title":"Flight validation of downlinked flight management system 4D trajectory","authors":"K. Wichman, J. Klooster, O. Bleeker, R. Rademaker","doi":"10.1109/DASC.2007.4391833","DOIUrl":"https://doi.org/10.1109/DASC.2007.4391833","url":null,"abstract":"4-Dimensional (4D) trajectory-based operations (TBO) are viewed as a key enabler for future air operations by both SESAR1 and NextGen2. The European Commission project NUP 2+3 has created a unique infrastructure that provides the networking of real-time 4D Trajectory (4DT) data created by GE Aviation's (formerly Smiths Aerospace) B737 flight management system (FMS) with air traffic management functions during revenue flights. This FMS has been modified to output and downlink an implementation of the ARINC 702A-1 \"Trajectory Bus\", making the FMS-predicted 4DT available to controllers on the ground. This provision of the aircraft 4DT to the Air Navigation Service Provider (ANSP) has enabled a set of TBOs in Sweden including 4DT-based arrival management with time-based metering to the runway threshold, application of required time of arrival (RTA) to fine-tune this arrival management, and 4DT enabled advanced-continuous descent arrivals (A-CDA), referred to as \"green approaches\" by the project. The NUP2+ project goals include facilitating the study of 4DT performance requirements, associated 4DT air/ground networking requirements and producing operational flight data to support further studies. To begin to produce such study data, a series of controlled Trajectory Evaluation Flights was conducted by the NUP2+ project in December 2006. This paper presents an overview of the motivation, objectives, experiment conduct, and preliminary data analysis of this initial set of flights. Plans for the project's expansion of these experiments are also discussed.","PeriodicalId":242641,"journal":{"name":"2007 IEEE/AIAA 26th Digital Avionics Systems Conference","volume":"574 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114049560","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}