摘要： 根据SDH中TU指针调整的特点，提出一种自适应比特泄漏器软件和硬件协同工作的设计方法，用来扩散指针调整引起的抖动。阐述了随机信号的构成、软件流程设计、硬件电路设计以及软硬件协同工作的方法，给出了SDH结合抖动中4种测试码的实验结果。

关键词: 同步数字系列, 抖动, 比特泄露, 硬件, 软件

Abstract: According to the characteristic of tributary unit(TU) point justification in synchronous digital hierarchy (SDH), this paper provides a method of software and hardware for designing adaptive bit-leaking. The content is a solution of making random signal, designing the software flow, and circuit design. Then it gives the result of four tests for combined jitter measurement in SDH.

Key words: Synchronous digital hierarchy, Jitter, Bit-leaking, Hardware, Software

中图分类号: 

• TP393