福州大学学报（自然科学版）Issue(4)：476-481,6.DOI:10.7631/issn.1000-2243.2015.04.0476
考虑同步与均衡的数字电视地面传输系统设计
Design of digital television terrestrial multimedia broadcasting system considering the synchronization and equalization
摘要
Abstract
In this paper, a synchronization and equalization system design scheme based on the digital television terrestrial multimedia broadcasting( DTMB) standards is presented.For the frequency offset estimation with high complexity and large amount of calculation, this paper presents a fine frequency offset estimation scheme based on accumulation after the initial synchronization.According to determine the size of cumulative value to deal with sudden frequency offset.Based on the parallel processing of the synchronous frame body data and current channel estimation value, we capture and manage the in-fluence between timing synchronization and channel estimation.Simulations show that under multipath channel, the system has good performance of synchronization and equalization, and makes the corre-sponding processing to the emergency.关键词
数字电视地面广播传输标准/频偏估计/定时同步/信道估计/均衡Key words
digital television terrestrial multimedia broadcasting/frequency offset estimation/timing synchronization/channel estimation/equalization分类
信息技术与安全科学引用本文复制引用
王仙强,郭里婷,吴林煌,李停..考虑同步与均衡的数字电视地面传输系统设计[J].福州大学学报（自然科学版）,2015,(4):476-481,6.基金项目
福建省高校产学合作科技重大项目（2012H6012）；福州大学科技发展基金资助项目 （）
