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光纤激光通信的质量受到信道的均衡性影响很大,为了改善光纤激光通信质量,通过信道并行调度,实现信道均衡,提出一种基于信道多径扩展覆盖的光纤激光通信并行调度技术。首先构建光纤激光通信信道模型,采用线性均衡和非线性均衡组合方式进行信道均衡设计,然后采用前馈滤波方法进行多径传播衰减抑制,通过信道多径扩展覆盖方法检测激光通信码元符号的判决序列,进行信道并行调度。最后进行光纤激光通信的仿真测试,结果表明,采用该方法进行信道并行调度,输出码元的误比特序列较低,输出信号的信噪比得到提高。
In order to improve the quality of fiber laser communication, the parallel channel scheduling is adopted to realize the channel equalization. A parallel scheduling technology of fiber laser communication based on channel multi-path extension coverage is proposed. Firstly, the model of optical fiber laser communication channel is established, and the channel equalization is designed by linear equalization and non-linear equalization. Then the feedforward filtering method is adopted to suppress the attenuation of multipath propagation. The decision of symbol of laser communication symbol is detected by channel multipath extension coverage Sequence, the channel parallel scheduling. Finally, the simulation test of fiber laser communication is carried out. The results show that the proposed method can reduce the bit error rate of the output symbols and increase the SNR of the output signal.