在子阵级DBF体制天线中,接收多路信号,这些信号通过射频通道会增加额外的增益,致使各通道的幅相特性产生差异,影响雷达的测角精度,所以必须将各路子阵幅相误差消除,保证各通道幅相一致。本文提出了一种工程中实用的误差校准方法,并通过仿真论证了该方法的可行性。 In the sub-array DBF system antenna, receiving multiple signals, these signals through the RF channel will increase the additional gain, resulting in the amplitude and phase characteristics of each channel differences affect the accuracy of the radar angle measurement, it must be sub-matrix amplitude and phase Eliminate the error, to ensure consistent amplitude of each channel. This paper presents a practical error calibration method in engineering, and demonstrates the feasibility of the method through simulation.