机载相控阵雷达天线阵的可靠性新模型

影响机载相控阵雷达下视能力的一个重要指标是天线的超低副瓣特性。在传统的机载相控阵雷达天线的可靠性设计中是对n中取女的表决模型冗余量进行压缩，该方法没有考虑失效T／R组件的分布位置对天线超低副瓣性能的影响。通过数学归纳法建立了在收发组件失效分布约束奢件下，机载相控阵雷达天线阵的可靠性数学模型。该模型的正确性经过了仿真验证。通过实例比较说明了传统可靠性设计方法可能带来的工程设计风险。该模型可用来指导机载相控阵天线的可靠性设计。

A New Reliability Model of Airborne Phased Array Radar Antenna Array

An important index to influence the down looking capability of airborne phased array radar is the uhralow sidelobe level of antenna. The traditional design and analysis method of reliability of airborne phased array radar antenna is to reduce voting model redundancy, the voting model takes 17 from k. Theinflu ence of failure T/R on the uhralow sidelobe level of antenna is not considered in traditional design method. Using the mathematical induction, this paper constructs a novel reliability model of antenna array under the constraint of failure distribution of T/R modules. Simulation is used to test the model. Meantime, an exampie is analyzed to describe the possible project design risk. The model can be used to guide the design of air borne phased array antenna.