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大型相控阵雷达的天线阵面系统复杂,故障模式多样,各模式对雷达工作的影响程度也不同。针对这些特点,文中采用了基于任务可靠性的可靠性预计。同时,通过表决冗余及开展定期检修的方式,来确保天线阵面设备及系统的高任务可靠性。推导了各种典型任务剖面的可靠性数学模型,建立了任务可靠性模型,并对雷达天线阵面进行了可靠性预计,从而为大型相控阵雷达天线阵面的高任务可靠性设计提供了理论依据和技术方法。
Large phased array radar antenna array system is complex, diverse modes of failure, the impact of each mode of radar work is also different. In view of these characteristics, the reliability estimation based on task reliability is adopted in this paper. At the same time, by means of voting redundancy and carrying out regular maintenance, the high mission reliability of the antenna array equipment and systems is ensured. The reliability mathematical models of various typical mission profiles are deduced, the mission reliability model is established, and the reliability prediction of the radar antenna array is provided, which provides the high task reliability design for the large phased array radar antenna array Theoretical basis and technical methods.