基于微波光电技术的未来数字阵列构想

大型数字阵列雷达的天线系统由辐射单元和成千上万个数字收发组件（DTR）组成，极其庞大与复杂，雷达的工程化和安全性是系统的难点问题，微波光子学将对未来大型数字阵列雷达产生重大影响，基于微波光电实现阵列信号远程收发与传输技术，对未来大型数字阵列雷达提出一种构想，使雷达天线系统由辐射单元和模拟光电收发模块（OTR）组成，天线系统实现轻质、低成本、远程安装，有效改善大型数字阵列雷达的架设灵活性和使用安全性，同时光电数字阵列模块（ODAM）设计空间将更加宽容，有利于雷达综合性能的提升。

An Idea for Future Digital Array Radar Based on Microwave Optoelectronics

The antenna system of large digital array radar has become more extremely immense and complicated, in which the radiation elements and thousands of digital transmit/receive modules are included. However, the system has to face a big challenge of engineering implementation and safety. In the future, mi- crowave photonics would have great influence on the large digital array radar system which are composed of radiation elements and analog optoelectronic transmit/receive module（OTR）. Based on this technique, remote T/R and transmission of array signal can be implemented for antenna system. A good idea is proposed for the future large digital array radar. If this idea comes true, the antenna system in radar could own the character- istic of light-weight, low-cost and remote-installation which would efficiently improve the flexibility during the erection and the safety in use. Meanwhile, optoelectronic digital array module（ODAM） has benefits for enlarging design margin and improving comprehensive performance of radar as well.