| 1. | The key technique include nip signal ' s generation , serial port 422 communication , control system data acquisition and processing , stationary wave ratio of antenna , sending and receiving signal ' s attenuation of antenna and so on 其关键技术包括nip信号产生, rs - 422串口通信,控制系统各模块数据采集和处理,机载天线驻波比及收发信号衰减测量等。 |