首先,介绍了以雷达作用距离、天线方向图作为相控阵雷达基于性能保障的重要指标;其次,介绍了远场条件下通过功率孔径积的测试评估雷达作用距离的下降;然后,通过天线方向图的仿真建模,分析了天线辐射单元的失效率、失效位置对天线方向图的影响;最后,通过对某型相控阵雷达的实际工程应用,进一步验证了测试方法的有效性。

Firstly, the radar range distance and antenna pattern of active phased array radar are selected as the important indicators based on performance-based logistics. Secondly, the decline of radar range distance is assessed by testing the power-aperture product of radar under the condition of far field. Thirdly, the influence of the failure rate and position of radiation unit to antenna pattern is analyzed by simulating and modeling. Finally, the validity is indicated by application of testing one type of active phased array radar.

TN821.+8