一种X波段数字阵列天气雷达收发系统实现

Realization of an X-band digital array weather radar transceiver system

为更精细地解析分析目标,详细阐述了一种X波段数字阵列天气雷达收发系统的实现.该系统采用一维电扫阵列收发工作模式,发射利用64×2单元模拟移相器进行双极化单波束扫描,接收利用64×2双极化数字阵列,可实现同时双极化和同时最大16接收波束;系统对多种重要雷达参数能在线进行实时标定和校准.试验结果表明,该系统实时定标精度可以满足天气雷达的定量测量需求.

In order to analyze the target more precisely,this paper expounds in detail the realization of an X-band digital array weather radar transceiver system.The system adopts one-dimensional electronically scanned array transceiver mode;the transmitter uses a 64×2 cell analog phase shifter for dual-polarization single-beam scanning;the receiver uses 64×2 dual-polarization digital arrays,which can achieve simultaneous dual-polarization and simultaneous maximum 16 receiving beams.The system can calibrate and adjust various important radar parameters online and in real time.The test results show that the real-time calibration accuracy of the system can meet the requirements of quantitative measurement of weather radar.