说明：  FPGA主要完成双通道数据采集、产生视频信号和旁瓣抑制信号、计算当前飞机相对本地接收天线的方位和距离、与DSP实时交换数据、上传报表等功能。
(FPGA mainly completes the functions of dual channel data acquisition, video signal and sidelobe suppression signal generation, calculation of the current aircraft's orientation and distance relative to the local receiving antenna, real-time data exchange with DSP, report upload, etc.)