一种改进的相控阵雷达和差波束测角方法

An improved angle measurement method of sum-difference beams for phased array radars

介绍了3种常见的和差波束测角方法。分析了不同测角方法的优缺点。结合实际项目工程应用提出了一种改进后的相控阵雷达和差波束比幅测角方法。在不同信噪比和T/R组件幅相不一致性的条件下对改进后的和差波束测角的精度影响进行了分析。实际数据测试结果证明了改进方法的正确性和有效性。

Three common angle measurement methods of the sum-difference beams are introduced,and their advantages and disadvantages are also analyzed.An improved amplitude-comparison angle measurement method of the sum-difference beams is proposed for phased array radars in combination with the actual engineering application.The effects on the angular accuracy are analyzed for the im-proved method under the condition that the SNR is different and the amplitude and phase of the T/R module are inconsistent.The actual data test results prove that the improved method is correct and effective.