基于多目标约束的下降段航迹预测方法研究

A Descent Stage Trajectory Prediction Method Based on Multi-objective Constraints

为提高航空器航迹预测的准确性,考虑航路限制、成本指数以及航空器性能限制,提出一种基于多目标约束的航空器下降段航迹预测方法。根据航空器性能数据、特征参数、航路限制及成本指数要求,采用动力学理论动态分析并预测各航段多维状态数据。利用航空器数据记录器中的一条真实航迹的起飞、爬升和巡航数据预测优化其下降航迹。仿真结果表明,对比真实航迹,预测航迹及多维状态数据可随成本指数及航路的约束动态调整,满足航路限制并提高了燃油利用率。

In order to improve the aircraft trajectory prediction accuracy considering route restrictions cost index and aircraft performance restrictions a multi-objective constraint-based aircraft descent flight trajectory prediction method is proposed.According to aircraft performance data characteristic parameters route restrictions and cost index requirements dynamics theory is used to dynamically analyze and predict multi-dimensional state data for each flight sector.The take-off climb and cruise data of a real trajectory in the aircraft data recorder are used to predict and optimize its descent trajectory.The simulation results show that compared with the real trajectory the predicted trajectory and multi-dimensional status data are dynamically adjusted with the cost index and the constraints of the route which meets the route restriction and improves the fuel efficiency.