有源相控阵雷达T/R组件幅相外场检测系统

Amplitude and Phase Test System in Outfield for T/R Modules on APAR

针对外场环境下对有源相控阵雷达T／R组件幅相性能的检测要求，在充分利用雷达自身资源的基础上，设计了一种基于中场测量技术的T／R组件测试方案，并构建了相应的测试系统。运用归一化和阵面单元加权的相对幅相测量法对采集数据进行分析，解决了缺少标准数据的难题，提高了外场测试的灵活性和适应性。理论分析和实际测试结果表明：该系统具有操作简便、定位故障组件快速、对场地要求不高等特点，实现了一种低成本的伴随式测试保障手段。

Aimed at the performance testing of amplitude and phase in outfield for T/R modules on active phased array radar, a test scheme on T/R modules based on mid-field measurement technique is presented, and the test system is accordingly developed. The test system takes full advantage of own resources of the radar, and applies the relative measurement of amplitude and phase based on normalization and array unit weighting to analyze collecting data. As a result, the absence of standard data is avoided, the flexibility and adaptability in outfield measurement is greatly improved. Theoretical analysis and measurement results show that the testing system has many advantages, such as simple operations, rapid fault location and lower site requirements. It is proved to a- chieve a kind of adjoint testing support methods at a low cost.