干扰抖动的非线性损伤及抑制方法

输入抖动与码速调整过程的非线性相互作用，将会产生一种低频的干扰抖动。这一干扰抖动的存在，会使近年来提出的减小抖动方法的抖动转移特性劣化。本文提出干扰抖动的概念，讨论了干扰抖动产生的机理。结果表明，当输入码流中有与塞入率相近频率的输入抖动时，由于非线性效应会产生较大的低频干扰抖动损伤。文中分析了干扰抖动下的抖动转移特性，提出了抑制这一干扰抖动的方法和干扰抖动的测试方法。

Nonlinear Impairment of Interference Jitter and Elimination method

Input jitter will generate a low-frequency interference jitter due to some nolinear effects during pulse stuffing synchronization. This interference jitter can degrade the performance of the newly introduced reduce-jitter method. In this paper the mechanism of the interference jitter is explored and results show that a low-frequency jitter will present if the input jitter' s frequency is closed to stuffing ratio. Based on the non-linearity of the interference jitter characteristics, jitter transfer function is re-studied. A method to eliminate this interference jitter is found and CCITT standards to measure jitter transfer function are suggested to be adapted for inherent non-linearity in this procedure.