机动式大气激光通信系统中的电学系统接口设计及其CPLD实现

为适应战地通信的要求,采用机动式大气激光通信的方法作为通信的接力手段,以提高其抗无线电干扰的能力,其中电子学系统的接口是设计的关键部分。通过深入分析电子学系统接口的具体要求,给出了接口设计的新方法,从总体设计思想、接口要求、系统设计难点以及解决方案等方面做了较为全面的分析和论证;提出了码速率调整和帧同步提取的新方案,利用在系统可编程器件实现了该方案,并给出了CPLD的具体实现结果。该接口电路在机动式大气激光通信整机的应用中获得了满意的效果,这种方案可为串行通信系统的设计提供一定的参考。

Electronic interface circuit design and implement with CPLD in the mobile atmosphere laser communication system

In order to satisfy the requirement of battlefield communication, the method using laser-air communication as a way of relaying the telecommunication was used to resist wireless disturbance .The electronic interface circuit was the key part of designing. The design method of electronic interface circuit and implement with CPLD for laser-air communication system was studied. The idea of entity design, the requirements of interface, the difficulties of system design and the corresponding solutions were deeply analyzed. The new ideas about code-rate adjusting and frame synchronization grasping were presented .It also gave the implement circuit with CPLD. This interface circuit worked very well in the laser-air communication system. This method could also be used as a reference of designing for serial communication system.