单脉冲雷达的一种角误差提取方法

给出了单脉冲雷达数字接收机的一种角误差提取方法 ,采用中频直接采样和数字下变频技术 ,可以克服模拟接收机合并通道方法中方位与俯仰通道互耦的问题 ,也可以克服零中频接收机模拟下变频正交双通道幅相不一致问题。与一种零中频正交通道检测方法进行了比较 ,结果表明 ,这种方法可以有效克服零值深度对单脉冲雷达角误差测量的影响 ,性能优于后者

A Method of Angle Error Extraction for Monopulse Radar

A method of angle error extraction for monopulse radar is provided. IF direct sampling and digital down converting techniques are adapted in the new method. With this method, the coupling problem between azimuth and elevation channel occurred in channel emerging method is avoided, and also, the amplitude and phase imbalance between I and Q channel existed in analog down converting technique eliminated. It is compared with a traditional extraction method utilizing zero IF quadrature channels technique. Results show that the new method overcomes the non ideal null depth effect on angle error extraction of monopulse radar, and the performance is better than the traditional method.