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研究飞控系统监控问题,应能完成信号正确检测和定位故障信号。针对比较监控电传系统的虚警率和漏检率,由于各种因素的影响,算法流程和阈值设计一直是监控算法要解决的问题。为了保证系统的可靠性和正确性,提出了改进的监控算法,根据统计学原理提出了预设阈值方法。最后通过给出了判定故障的真值表。在MATLAB仿真平台上,建立了具有典型性的两个信号模型,并对改进的算法进行了仿真验证。结果表明,改进的算法具有阈值预设合理、算法简单等优点,大大降低了虚警率和漏检率,具有实际的监控效果。
Research on flight control system monitoring problems should be able to complete the correct signal detection and positioning fault signal. In order to compare the false alarm rate and missed detection rate of the monitoring telex system, due to various factors, the algorithm flow and the threshold design have always been the problems to be solved by the monitoring algorithm. In order to ensure the reliability and correctness of the system, an improved monitoring algorithm is proposed. Based on the statistical principle, a preset threshold method is proposed. Finally, the truth table is given to determine the fault. On the MATLAB simulation platform, two typical signal models are established, and the improved algorithm is verified by simulation. The results show that the improved algorithm has the advantages of reasonable default threshold and simple algorithm, which greatly reduces the false alarm rate and missed detection rate, and has the actual monitoring effect.