AN IMPROVED ADAPTIVE THRESHOLD MODULATION METHOD FOR JITTER REDUCTION IN SDH/SONET

作     者：Shi Fuqiang Lin Xiaokang Feng Chongxi (Communication Div., Electron. Eng. Dept., Tsinghua University, Beijing 100084) Shi Fuqiang Lin Xiaokang Feng Chongxi (Communication Div., Electron. Eng. Dept., Tsinghua University, Beijing 100084)

作者机构：Communication Div. Electron. Eng. Dept. Tsinghua University Beijing 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：1999年第16卷第3期

页      面：251-256页

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

主　　题：Pointer adjustment Adaptive threshold modulation Jitter Wander 

摘      要：Adaptive threshold modulation is widely adopted in SDH/SONET network for pointer processing and mapping. When the processing rate is very high, the performance of an all digital implementation is limited by the phase error resolution. Phase error re-sampling technique is adopted here for the all digital implementation of an improved adaptive threshold modulation, which can work in greatly reduced operating speed with high jitter and wander performance. The improved method is adopted in AU-4 and TU-12 pointer processors and the simulated performance is given.