Algorithm and operational concept for resolving short-range conflicts
Algorithm and operational concept for resolving short-range conflicts
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DOI：
10.1243/09544100jaero546
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发表时间：
2010-01-01
影响因子：
1.1
通讯作者：
Heere, K.
中科院分区：
文献类型：
--
作者：
Erzberger, H.;Heere, K.
本文描述了一种计算有倾斜角限制的水平分辨率轨迹的算法。如果可以避免分离损失，则算法生成一组达到或超过指定最小分离的操作。演习包括转向指定的航向，然后直线飞行。产生了单架飞机和协同演习。在协同演习中，两架冲突飞机同时执行解决演习，与单架飞机演习相比，这加快了解决过程。如果在一个指定的倾斜角度限制下，分离损失是不可避免的，该方法选择在转弯时使最小分离最大化的机动。在包含初始位置、相遇角、空速、预测最小分离和倾斜角的参数空间中分析了分辨力轨迹的特性。对初始条件集的分辨率分析为算法的设计提供了路线图。描述了一种系统的概念设计，该系统通过向飞机上传解决建议来自动解决近距离冲突。控制器可以选择将检测到的冲突分配给系统来解决。如果失去分离的时间低于阈值，系统也有权在没有事先管制员批准的情况下向飞机上传解决建议。S模式特定服务数据链非常适合将解决方案咨询上传到冲突飞机。该系统的部署可能是建立下一代空中交通管制系统的第一步。
The article describes an algorithm for computing horizontal resolution trajectories with a limit on bank angle. If loss of separation can be avoided, the algorithm generates a set of manoeuvres that achieves or exceeds the specified minimum separation. The manoeuvres consist of turns to a specified heading followed by straight-line flight. Both single aircraft and cooperative manoeuvres are generated. In cooperative manoeuvres, both conflict aircraft simultaneously execute resolution manoeuvres, which expedite the resolution process compared to single aircraft manoeuvres. If loss of separation is unavoidable for a specified bank angle limit, the method chooses the manoeuvre that maximizes the minimum separation during the turns. The characteristics of the resolution trajectories have been analysed in a parameter space comprising initial positions, encounter angle, airspeed, predicted minimum separation, and bank angle. Analysis of resolutions for sets of initial conditions provided a road map for the design of an algorithm. The conceptual design of a system is described that resolves close-in conflicts automatically by uplinking resolution advisories to aircraft. Controllers have the option to assign detected conflicts to be resolved by the system. The system also has the authority to uplink resolution advisories to the aircraft without prior controller approval if time to loss of separation falls below a threshold value. The Mode S Specific Services data link is well suited for uplinking resolution advisories to the conflict aircraft. Deployment of the system could be an initial step in building the next-generation air traffic control system.