摘要
在研究超宽带系统的信道传输和最佳接收的基础上,提出超宽带—正交频分复用(UWB＿OFDM)系统的接收结构,引入叠加导频技术来实现UWB＿OFDM系统的时间与频率同步,在此基础上解决Rake接收和多址接入等关键问题.
We introduce the most promising technology of HDR_WPAN_UWB technology. Based on further research of receiving of signal used in UWB_OFDM,we present a pilot technology in the receive structure to ensure synchronization of time and frequency, and then achieve Rake receive and multiple access.
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2004年第5期95-98,共4页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
关键词
超宽带-正交频分复用系统
接收结构
无线个人局域网
UWB-OFDM
时间
频率
RAKE接收
多址接入
UWB(Ultra-Wideband)
WPAN(Wireless Personal Area Network)
OFDM(Orthogonal Frequency Division-multiplexing)
frequency hopping
OFDMA(Orthogonal Frequency Division Multiple Access)
