synchronous modulation meaning in Chinese

同步调制
同步通信卫星

We introduce a model of random birefringent single mode fibers , and the general nonlinear propagation equations of dual - lightwaves in random birefringent fibers are deduced . the characteristics of polarization mode dispersion in 2 + 10gb / swdm system is studied . it is found that pmd in wdm system can be effectively suppressed by the synchronous modulation technique
我们引入了随机扰动双折射单模光纤模型，导出了双波长的光波在随机双折射光纤中的非线性脉冲传输方程；在此基础上，研究了偏振模色散对2 10gb swdm系统中脉冲序列传输的影响，并采用同步幅度调制控制技术有效地降低了偏振模色散的影响。