CAJ | 학술논문

DAML (辅助判决式最大似然)相位估计相干光接收机已成为光通信领域未来考虑试验的相干接收方式之一。文章对DAML相干光接收机的启动进行了研究，在此基础上提出了一种冷启动方案。仿真验证了该方案的可行性，同时，对该方案进行了优化。仿真表明，当M次幂算法与DAML算法参数均取最优值时，冷启动方案性能达到最佳。
DAML (보조판결식최대사연)상위고계상간광접수궤이성위광통신영역미래고필시험적상간접수방식지일。문장대DAML상간광접수궤적계동진행료연구，재차기출상제출료일충랭계동방안。방진험증료해방안적가행성，동시，대해방안진행료우화。방진표명，당M차멱산법여DAML산법삼수균취최우치시，랭계동방안성능체도최가。
The optical coherent receiver with Data-Aided Maximum Likelihood (DAML)carrier phase estimation has become one of the coherent reception modes to be considered for tests in the optical communication field in the near future.This paper studies the initiation of this type of receiver and on this basis proposes a cold-start scheme.Simulation verify the feasibility of this scheme.Furthermore it optimizes this scheme and simulation results show that when both the parameters of the Mth pow-er algorithm and the DAML algorithm take the optimal values,the cold-start scheme achieves the best performance.