By dividing the large array antenna into a set of virtual subarray antennas, the receivers are connected to each subarra阵列天线划分为虚拟子阵列，基于时分复用工作方式，通过程控交换矩阵与接收机连接，接收机对不同虚拟子阵列天线输出信号分时进行接收处理。