曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
It is recognized there are a number of relevant activities (both within and outside of NASA) which directly relate to DAG-TM. It is critical that AATT-sponsored DAG-TM research leverage and build upon the results from these related activities, in order to maximize the limited research resources available. In addition, collaboration between NASA and the other organizations involved in these related activities is essential if DAG-TM is to be implemented. Some of these key relevant activities are highlighted below; this description is not intended to be a comprehensive list of all relevant activities.
2.3.1 NAS Architecture v4.0
The NAS Architecture Version 4.0 plan (Ref. 7) describes the FAA’s roadmap for the modernization of the NAS through the year 2015. Modernization includes the introduction of new CNS/ATM technologies/capabilities, ATSP decision support tools, and expanded information exchange to facilitate limited collaborative decision-making. DAG-TM will require many of the capabilities planned under NAS Architecture v4.0. It is recognized, however, that DAG-TM research may determine that additional capabilities and/or functionalities will be required for DAG-TM, above and beyond what is planned under NAS Architecture v4.0. These will be identified as part of the DAG-TM research activities.
Fig. 2-1 depicts the evolution of NAS modernization towards a DAG-TM system. While DAG-TM covers the entire spectrum of distributed decision-making, it is expected that the plans in NAS Architecture Version 4.0 will need to be expanded based on the findings of the DAG-TM research. Additionally, for DAG-TM to be realized, the users (flight decks and AOCs) will also need to increase their capabilities.
2.3.2 Safeflight 21 Program
Safeflight21 is performing an operational evaluation of Automatic Dependent Surveillance-Broadcast (ADS-B) technology. Datalink is considered to be one of the fundamental capabilities required by DAG-TM. Safeflight21 has already demonstrated enhanced pilot situational awareness of local traffic via the use of datalink and Cockpit Display of Traffic Information (CDTI) technology in the Ohio Valley demonstrations. DAG-TM research will consider this work.
Centralized Information Collaborative Distributed
Control Sharing Decision Control
Making
2.3.3 CPDLC Program
The Controller-Pilot Datalink Communications (CPDLC) program is also relevant to DAG-TM. The capability for two-way datalink communications between the FD and ATSP is fundamental to DAG-TM operations. DAG-TM research will also consider this work.
2.3.4 RTCA Activities
Relevant activities within the RTCA include the Aeronautical Data Link Advisory Special Committee (SC-194) work on flight operations and ATM integration (WG-2). Specifically, WG-2’s work with respect to Aeronautical Data Link/Decision Support System Services (ADL/DSSS) which has evolved from the work (Ref. 8) of the FAA/Industry group on FMS-ATM Next Generation (FANG) is highly relevant to DAG-TM. In addition, work in the ADS-B Special Committee (SC-186/ WG-1 and WG-4) with respect to conflict detection and resolution is also highly relevant.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：Concept Definition for Distributed Air/Ground Traffic Management (DAG-TM)(10)
