这种辐射波会引起光孤子传输系统的附加损耗。
The dispersive waves cause soliton transmission systems to lose energy.
第二部分同样用微扰理论来研究滤波器的作用，导出了频域滤波孤子传输系统的脉冲演化方程；
Secondly, we have studied the effect of filters by the use of perturbation theory and derived the evolution equation of the soliton pulse in the presence of sliding frequency.
结果表明：色散随机变化增大了暗孤子到达检测窗口的时间抖动方差而降低了暗孤子传输系统的容量。
The results show: the stochastic dispersion variation apparently leads to the time jitters and reduces the capacity of the dark soliton transmission system.
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