摘要
本文分析了数字电视地面广播通信信道具有长脉冲响应的多径衰落的特点 ,从频域上表达了其多径衰落信道模型 ;基于单载波和多载波两种不同的传输模式 ,推导了数字电视地面广播传输系统在该多径衰落信道下的系统截止率和中断概率的表达式 ;
The characteristics of the digital television terrestrial broadcasting (DTTB) channels with long impulse responses are analyzed, and the frequency domain multipath channel model is given. Based on single carrier and multicarrier these two different transmission modes, the cutoff rate expressions and the outage probability expressions of the DTTB transmission systems are derived. The performance of different DTTB standards-based or schemes-based transmission systems over DTTB multipath fading channels are compared both analytically and by computer simulations.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2004年第3期425-428,共4页
Acta Electronica Sinica
基金
国家自然科学基金 (No .50 1 770 0 1 )
国家"九八五"项目
信息产业部电子信息产业发展基金 (No .2 0 0 2 2 91 )
关键词
数字电视地面广播传输系统
频域多径信道模型
截止率
中断概率
多径衰落信道
Communication channels (information theory)
Computer simulation
Digital television
Fading (radio)
Frequency domain analysis
Mathematical models
Multipath propagation
