光纤激光通信中的信道并行调度技术研究

Research on parallel channel scheduling in fiber laser communication

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。

The optical fiber laser communication quality is influenced greatly by the channel equilibrium. In order to improve it and realize the equilibrium through channel scheduling, an optical fiber laser communication parallel scheduling technology based on multi-path extended coverage was put forward. Firstly build a fiber laser communication channel model. Design the channel equalization by using linear and non-linear equilibrium combination. Then using feedforward filtering method for multi-path propagation attenuation, testing the decision sequence of laser communication symbol by channel multi-path extended coverage method and continue the channel parallel scheduling. Finally do the simulation test, the results show that using this method, the bit error sequence of output symbols is low and the SNR of output signal is improved.