一种飞行器任务评估系统的设计与实现

摘要

针对火箭等飞行器在试飞任务过程中,测量种类众多且关系复杂的问题,提出了一种两阶段评估飞行任务的技术方案.该方案根据不同数据的处理方式,将评估过程分为证据获取阶段和评估推理阶段.在证据获取阶段,采用分布式获取数据的技术,将遥测、轨道等数据和图像数据分开,采用不同的模型并行获取证据.在评估推理阶段,采用专家系统模型,汇集各种证据(遥测、轨道、图像等)进行综合推理,得出评估结论.仿真表明,该系统可以满足即时评估的需求.%Much kinds of data which has complex relationships need to be measured and there are many complex operations on the data to get some information during the aircraft mission.A two-stage design for mission assessment is presented.Depending on the different ways to deal with the data,the evaluation process is divided into two stages:evidence acquisition phase and reasoning phase.In the first phase,the technology of distributed access to data is used and the telemetry data,track data and image data are separated,and then the evidence is obtained by using different models.In the second phase,the expert system model together with a variety of evidences(telemetry,orbit,images,etc.) is adopted to obtain conclusions of assessment by reasoning comprehensively.The simulation results show that the system can fulfill the immediate assessment task.