舰载雷达遂行舰船执行作战任务时,其任务可靠性受作战环境和作战方式的影响较大。文中基于舰载雷达故障数据记录特点,提出基于任务剖面的任务可靠性评估方法,精细化评估舰载雷达不同任务剖面的可靠性水平。首先,定义了舰载雷达故障信息矩阵;其次,根据等效折合系数,将时间段内的失效率等效折算到各个剖面段内,建立舰载雷达任务可靠性模型;类似地,提出想定剖面下的任务可靠性评估方法,实现预想任务剖面的可靠性预测。最后,以某型舰载雷达实际运行故障数据为例,分析传统可靠性评估与文中方法的差异。结果表明,基于任务剖面的舰载雷达任务可靠性评估方法合理可行,可有效评估不同任务阶段的可靠度。

When the shipborne radar carries out the combat mission, its mission reliability is greatly affected by the combat environment and combat mode. Based on the characteristics of shipborne radar fault data recording, this paper proposes a mission reliability assessment method based on mission profile, and finely evaluates the reliability level of different mission profiles of shipborne radar. Firstly, the fault information matrix of the shipborne radar is defined; secondly, the failure rate in the time period is equivalently converted into each section according to the equivalent reduction coefficient, and the mission reliability model of the shipborne radar is established; similarly, the proposed section is proposed the mission reliability evaluation method below realizes the reliability prediction of the expected mission profile. Finally, the actual operation fault data of a certain type of shipborne radar is taken as an example to analyze the difference between traditional reliability evaluation and the method in this paper. The results show that the mission reliability assessment method of shipborne radar based on mission profile is reasonable and feasible, and it can effectively assess the reliability of different mission stages.

TN959. 7