CAJ | 학술논문

针对同时受到偏振模色散（PMD）和偏振相关损耗（PDL）作用的偏振复用系统，在系统接收端采用相干接收方式，利用基于负熵最大化的不动点复数ICA算法（T-CMN算法）对接收到的偏振复用信号进行解复用。仿真结果表明：ICA解复用后的偏振信号的传输质量明显改善，在系统中光信噪比大于20.86 dB时均能保持误码率小于10?9，符合通信系统的传输质量要求。
침대동시수도편진모색산（PMD）화편진상관손모（PDL）작용적편진복용계통，재계통접수단채용상간접수방식，이용기우부적최대화적불동점복수ICA산법（T-CMN산법）대접수도적편진복용신호진행해복용。방진결과표명：ICA해복용후적편진신호적전수질량명현개선，재계통중광신조비대우20.86 dB시균능보지오마솔소우10?9，부합통신계통적전수질량요구。
Due to polarization mode dispersion(PMD) and polarization dependent loss(PDL) in a system, the coherent detection scheme was chosen at the receiver side of the system and T-CMN algorithm was used to separate the polariza-tion multiplexed signals. Simulation results show that after demultiplexed by independent component analysis(ICA), the transmission quality of polarization signals is obviously improved, and when the optical signal to noise ratio of the sys-tem is greater than 20.86 dB, the bit error rate can be kept lower than10?9, which meets the requirement of a communica-tion system.