一种PCR抖动检测算法及实现  

A Detection Algorithm and Implementation of PCR Jitter

作　　者：李鸿燕[1] 

机构地区：[1]上海工程技术大学基础学院,上海201620

出　　处：《中国有线电视》2012年第12期1409-1411,共3页China Digital Cable TV

摘　　要：在数字电视产品开发中,PCR抖动会导致终端音视频数据无法完全正确显示。给出一种基于有限状态机模型的PCR抖动检测算法及在Nucleus嵌入式实时操作系统下实现,该算法及实现在最新高端数字电视芯片上得到实际应用,具有较强的应用价值。In the development of digital TV production, PCR jitter leads that audio and video data can＇t be fully shown by terminal device correctly. In this paper, a detection algorithm of PCR jitter based on finite state ma- chine model and an implementation under the embedded real time operation system nucleus are presented. The algorithm is applied to the high-end digital TV chip of Trident Multimedia Technologies Co. , Ltd. has a better practical application value for better quality of digital TV production.

关 键 词：PCR抖动 LOCK UNLOCK NUCLEUS 

分 类 号：TN949.197[电子电信—信号与信息处理]