摘要
优化设计数字电视地面广播系统,必须对数字电视地面广播信道有一个充分的认识。基于OFDM,建立了数字电视地面广播的一种信道模型,同时,基于 OFDM 系统中信道估计与均衡的结果,给出了提取信道状态信息的一种方法。
We must have a good knowledge of the channel character of DTTB to design optimum the system
of DTTB. Based on the results of the channel estimation and equalization for OFDM system,a channel mod-
el of DTTB system is established in this paper. At the same time,a method of abstracting the information of
CSI is introduced.
出处
《西南科技大学学报》
CAS
2004年第1期1-5,共5页
Journal of Southwest University of Science and Technology
关键词
OFDM
数字电视地面广播
信道模型
信道状态
信息提取
正交频分复用
数字电视传输系统
Digital Television Terrestrial Broadcasting(DTTB)
Orthogonal Frequency Division Multiplexing(OFDM)
Channel Model
Channel State Information(CSI)
