介绍了一种VHF有源相控阵雷达收发组件中的数字收发单元。采用分布式高速D/A和A/D分别实现为每个天线单元产生独立射频发射信号和采集每个天线单元接收的回波,使每个单元发射的波形和采集到的回波信号能单独处理。所有数字单元通过嵌入式以太网接口连接到主控计算机。该数字单元在雷达信号处理方面具有灵活性强、高性能、可扩展和低成本的特点。 A digital transceiver unit in VHF active phased array radar transceiver is introduced. The use of distributed high-speed D / A and A / D, respectively, for each antenna unit to generate a separate radio transmission signal and each antenna unit receives the echo received, so that each cell transmits the waveform and the echo signal can be collected separately deal with. All digital units are connected to the host computer via the embedded Ethernet interface. The digital unit is characterized by its flexibility, high performance, scalability and low cost in radar signal processing.