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研究了无线激光通信(FSO)与传统激光通信的区别,编制了一套FSO物理层收发协议。采用现场可编程门阵列(FPGA)完成收发机与外部电路的数据通信,利用先入先出(FIFO)存储器完成收发协议与外部系统的接口。设计的物理层收发协议主要完成发送数据的编码、串行化以及接收数据的解串行化和解码。仿真实验结果表明:设计的收发协议可实现在40 Mbps通信速率下的稳定工作,证明了该收发协议设计的可行性。
The difference between wireless laser communication (FSO) and traditional laser communication is studied, and a set of FSO physical layer transceiving protocol is developed. The field programmable gate array (FPGA) is used to complete the data communication between the transceiver and the external circuit, and the FIFO is used to complete the interface between the transceiver protocol and the external system. The design of the physical layer send and receive protocol to complete the main encoding data transmission, serialization and receive data deserialization and decoding. The simulation results show that the design of the transceiver protocol can achieve the stability of the 40 Mbps communication rate, and prove the feasibility of the transceiver protocol design.