指针调整会在同步数字系列（ＳＤＨ）网中引入非常大的抖动．本文在分析比较了常见的两类指针泄漏方法的基础上，提出了一种新的抑制指针调整抖动的方法———平滑相位泄漏法．此方法有效地解决了泄漏的量化抖动问题以及复杂的泄漏控制问题．本文通过理论分析和计算机仿真比较了平滑相位泄漏方法与理想滤波的性能，并给出了此方法对不同指针测试序列的抖动抑制性能 Pointer adjustment introduces very large jitter in the Synchronous Digital Hierarchy (SDH) network. On the basis of analyzing and comparing two common methods of pointer leakage, this paper proposes a new method to suppress the pointer adjustment jitter --- smooth phase leakage method. This method effectively solves the problem of quantitative jitter of leakage and complicated leakage control. In this paper, the performance of smooth phase leakage method and ideal filter is compared by theoretical analysis and computer simulation, and the jitter suppression performance of different finger test sequences is given