2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)最新文献

{"title":"Cognitive Work Analysis of the Sectorless ATM Concept with the Introduction of Teams","authors":"Kevin Capiot, B. Korn","doi":"10.1109/DASC43569.2019.9081689","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081689","url":null,"abstract":"In this paper the cognitive work analysis for the sectorless ATM environment will be presented. The analysis includes the abstraction hierarchy, decision ladder and information flow maps. This analysis will form the basis for development of tools and display designs within the sectorless ATM environment.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125719609","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":"Light Sport Aircraft Auto-Land System","authors":"J. Vlk, Peter Chudý, Milan Prustomersky","doi":"10.1109/DASC43569.2019.9081730","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081730","url":null,"abstract":"The paper introduces a description of an automatic landing system for a Light Sport Aircraft (LSA) along with related concept and experimental validation by means of flight testing. The designed Linear Quadratic Regulator (LQR) which has been implemented on a digital autopilot was subjected to performance evaluations considering requirements inspired aerospace standard SAE AS94900. The autopilot's design robustness was tested on a LSA.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"63 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123690268","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":"Measuring Operational Air Navigation System Performance in the 21st Century: Arrival Management","authors":"Antonio Lazarovski, R. Koelle","doi":"10.1109/DASC43569.2019.9081774","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081774","url":null,"abstract":"Air transportation is undergoing a fundamental transformation. Although ICAO is proposing a set of operational performance indicators to assess air navigation system performance, there is a need to refine these indicators to account for novel concepts and changing operational paradigms. This paper introduces a spatial-temporal framework for arrival management. As assessing the efficiency of arrival management will include the extension of the analysis horizon beyond multiple hundreds of nautical miles from the airport, a purely time based approach will inevitably include aspects of the sequencing techniques deployed. This paper explores the spatial-temporal concept on the basis of an empirical post-operational use case analysis. The feasibility of this approach is studied for three European airports. These airports have been chosen as they show differences in the operational concept of deployed arrival management techniques. In particular, being able to compare the different techniques will allow to support decision makers in the selection of appropriate arrival management strategies for varying air traffic demand and operational contexts. The data analytical approach presented in this paper enhances today's approach to measuring performance in the arrival phase and provides a basis for the further development of associated performance indicators. The results obtained allow for quantifying the effectiveness of the chosen operational concepts for each airport context. The associated efficiency performance measure provides a basis for deliberating on the chosen concept vis-à-vis other emerging approaches. This paper shows the general feasibility of the framework and approach to measuring the tempo-spatial performance in the arrival phase of flight. In particular, the augmentation of the classical time-based approach supports a finer assessment of the efficiency of service provision, but also the impact on airspace users and their planning for arriving at airports with different arrival management concepts. The further validation will include the application of the approach to a variety of operational contexts as part of the multi-lateral benchmarking activities under ICAO. This will increase the number of operational contexts and concepts. The studied approach is also a candidate for inclusion into the suite of performance measures under the EUROCONTROL Performance Review System.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121909612","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":"Experimental assessment of vision-based sensing for small UAS sense and avoid","authors":"R. Opromolla, G. Fasano, D. Accardo","doi":"10.1109/DASC43569.2019.9081725","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081725","url":null,"abstract":"This paper presents first results of an experimental flight-test campaign aimed to gather data for performance assessment of non-cooperative Sense and Avoid architectures for small Unmanned Aircraft Systems (UAS). The attention is here focused on vision-based approaches. An innovative sensing technique is proposed which exploits a Deep Learning (DL) network as the main processing block of the detector algorithm, and a multi-temporal strategy for track generation and confirmation. Both the detection and tracking phases foresee ad-hoc solutions to deal with the presence of intruders either above or below the horizon. Two customized small quadcopters, equipped with high-resolution color cameras, are used to reproduce in flight low-altitude, near-collision scenarios characterized by different speed and height above ground, thus being able to act simultaneously as ownship and intruder. Results demonstrate the capability of the DL-based detector to provide maximum declaration range around 300 m and 100 m, above and below the horizon, respectively. The tracker can robustly produce firm track of the intruder while rejecting many false positives, particularly occurring in below-the-horizon scenarios.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125053045","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":"Evaluation of the LDACS Cybersecurity Implementation","authors":"Nils Mäurer, T. Gräupl, C. Schmitt","doi":"10.1109/DASC43569.2019.9081786","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081786","url":null,"abstract":"Communication, Navigation and Surveillance (CNS) infrastructure in civil aviation must evolve as fast as possible to cope with all challenges posed by the growth of the worldwide population, globalization and the worldwide demand for more and more mobility. Analogue systems are replaced by digital means and automation is becoming much more important to be able to handle the large amount of new entrants in the air traffic system. Spectrum saturation must be solved by introducing digital systems and safety and security of the safety critical infrastructure surrounding civil aviation must be constantly updated to support the ever-growing system complexity. As one of the Future Communication Infrastructure (FCI) candidates we introduce LDACS as the very first true integrated CNS system worldwide. In previous works we have already analyzed its cybersecurity, developed a cybersecurity architecture with corresponding algorithms and demonstrated the improvement in cybersecurity due to our security additions. Here we implement the LDACS cybersecurity architecture and evaluate the impact of introduced security overhead on the LDACS system. We conclude that the proposed protection mechanisms successfully mitigate previously identified risks and only add minor time, data and computation overhead on top of the LDACS protocol stack. With this result, the security solutions are a good candidate to be included in the SESAR wave 2 updated LDACS specification.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131631632","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":"4D Trajectory Based Operations — Speed Control Interoperability","authors":"M. Jackson, Ryan Howe-Veenstra, Don Walker","doi":"10.1109/DASC43569.2019.9081724","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081724","url":null,"abstract":"Arrival Procedures for Optimized Profile Descents (OPD) have been published to allow aircraft to approach many moderately dense terminal areas while flying efficient, near-idle descent trajectories that save fuel, and reduce emissions and noise. However, giving the aircraft flexibility in choosing their optimal vertical profile through altitude window constraints can have a negative impact on the airspace throughput and controller workload because spacing still needs to be maintained during the arrivals. Air Traffic Management automation systems and aircraft avionics using Trajectory Based Operations (TBO) concepts are being developed and fielded to assist controllers in handling traffic while allowing these efficient descent profiles. These systems are time-based, predict the aircraft trajectories as accurately as practical, and provide speed or time advisories to maintain spacing. Several specific methods are being developed: Flightdeck-based Interval Management (FIM), Ground-based Interval Management Spacing (GIM-S), and Time-of-Arrival Control (TOAC, also known as Required Time-of-Arrival, RTA). This paper describes the strengths and weaknesses of these systems, proposes how these three systems can be used together, when to use each of the methods, and expresses concern over an interoperability issue. The issue relates to the treatment of published speed constraints that differs between the current published standards and may prevent interoperability of the systems when approaching the terminal area. We propose to resolve the observed issue by updating the RTA / TOAC standards to allow treatment of the published speed constraints consistent with the FIM standards.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125501057","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":"Variable-power ADS-B for UAS","authors":"Brendan Duffy, L. Glaab","doi":"10.1109/DASC43569.2019.9081640","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081640","url":null,"abstract":"Small unmanned aerial systems (sUAS) have the potential for a large array of highly-beneficial applications. These applications include search and rescue, fire spotting, precision agriculture, etc. just to name a few. Typically sUAS vehicles weigh less than 55 lbs and will be performing flight operations in the National Air Space (NAS). Certain sUAS applications, such as package delivery, will include operations in the close proximity of the general public. Operations of sUAS vehicles pose risks to people and property on the ground as well as to manned aviation. The full benefit from sUAS is contingent upon the resolution of several technological areas in order to provide an acceptable level of risk for widespread sUAS operations. One significant technological area currently precluding widespread sUAS operations in the NAS is the ability to prevent sUAS from colliding with other sUAS and/or manned aircraft. Autonomous sense and avoid (ASAA) can provide sUAS the capability to maneuver around other vehicles, but is contingent upon adequate knowledge of traffic aircraft position. Automatic Dependent Surveillance Broadcast (ADS-B), already employed for manned aircraft, can be an excellent method of providing adequate air traffic position information. However, the large number of anticipated sUAS would be expected to completely saturate the ADS-B system, degrading existing ADS-B applications. One promising method of cooperative traffic position communication for sUAS is through reduced-power ADS-B. Reduced power output would greatly reduce the effect each vehicle has on the overall ADS-B system. The over-arching objective of the current effort was to determine if a transmit power level could be defined that would enable effective ASAA for sUAS while still providing useful alerts to manned aircraft without risking oversaturation of the ADS-B spectrum. Flight testing was performed for several ADS-B power levels. ADS-B communication from sUAS to sUAS and sUAS to manned aircraft were evaluated to ascertain the efficacy of this approach.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130448287","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":"Self-Healing Data Streams Using Multiple Models of Analytical Redundancy","authors":"Shigeru Imai, F. Hole, Carlos A. Varela","doi":"10.1109/DASC43569.2019.9081716","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081716","url":null,"abstract":"We have created a highly declarative programming language called PILOTS that enables error detection and estimation of correct data streams based on analytical redundancy (i.e., algebraic relationship between data streams). Data scientists are able to express their analytical redundancy models with the domain specific grammar of PILOTS and test their models with erroneous data streams. PILOTS has the ability to express a single analytical redundancy, and it has been successfully applied to data from aircraft accidents such as Air France flight 447 and Tuninter flight 1153 where only one simultaneous sensor type failure was observed. In this work, we extend PILOTS to support multiple models of analytical redundancy and improve situational awareness for multiple simultaneous sensor type failures. Motivated by the two recent accidents involving the Boeing 737 Max 8, which was potentially caused by a faulty angle of attack sensor, we focus on recovering angle of attack data streams under multiple sensor type failure scenarios. The simulation results show that multiple models of analytical redundancy enable us to detect failure modes that are not detectable with a single model.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114965695","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":"Semi-automated deployment of a High-lift system on IMA using the Selective Middleware","authors":"D. Darwesh, B. Annighöfer, R. Reichel","doi":"10.1109/DASC43569.2019.9081629","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081629","url":null,"abstract":"This paper presents a case study concerning the implementation of a High-Lift System on an Integrated Modular Avionics (IMA) platform using a system management middleware and a knowledge-based automatic instantiation process. Safety-critical avionics systems usually consist several system management functions besides the specific control functions, which contribute to high development costs. System management functions such as redundancy, signal path, and fault management could be generally constructed on generic logics. The Flexible Avionics Platform approach developed at the Institute of Aircraft Systems at the University of Stuttgart describes these logics in generic software bricks to instantiate the system management. A model and knowledge-based tool suite assists to derive the system management instantiation from an abstract high-level system architecture model. Ongoing research has introduced the Flexible Avionics Platform into the IMA environment as a selectively useable middleware called “Selective Middleware” in a partition space according to the ARINC653P4 interface specification. Consequently, a development process for the Selective Middleware has to be defined and validated by the development of an appropriate system to show the applicability in an industrial development process. Hence, this paper presents a development process for a selective Middleware, which focuses on system development aspects and gives an outlook on relevant qualification procedures. Aspects of DO-297 and ARP4754A are considered to derive the development process. Subsequently, a High-Lift System function is established on grounds of the Selective Middleware approach. This High-Lift System function is divided into two development processes of (1) the generation of the system management and IMA configuration files and (2) the development of the specific control functions.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115009477","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 space exploration of avionics architectures for Future Launcher Evolutions","authors":"M. Halle, F. Thielecke, J. Sebald, Stéphane Le Gal","doi":"10.1109/DASC43569.2019.9081612","DOIUrl":"https://doi.org/10.1109/DASC43569.2019.9081612","url":null,"abstract":"Designing and building avionics for aerospace is a complex task due to the wide range of technology options available, the architectural options of the vehicle and constraints like redundancy or segregation of devices and alike. The European Future Launcher Evolutions (FLE) that is currently under development targets an optimal avionics system design. The aim of the study is to provide improved avionics architectures for the telemetry chain avionics system of the FLE. Key driver for the investigation are the increasing costs and the required performance to meet increasing customer demands. To provide more payload and a wide range of missions with high reliability, a safe and cost-effective avionics architecture is desired. Such investigations can be supported using a model-based optimisation approach based on an existing avionics architecture optimisation framework. Different new technology bricks that can improve the avionics system of the FLE are investigated using the framework. The results provide the engineer with detailed insights into optimal avionics architectures and concrete figures to compare technology options and decide about the benefits at early design stages and continuously during development.","PeriodicalId":129864,"journal":{"name":"2019 IEEE/AIAA 38th Digital Avionics Systems Conference (DASC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128907202","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}