一种AOWL-FSLE的UWB均衡接收机

刘志勇^1,2, 张钦宇¹, 张乃通³

1.哈尔滨工业大学深圳研究生院;2.哈尔滨工业大学(威海)信息科学与工程学院;3.哈尔滨工业大学电子与信息工程学院



摘要:

针对UWB(Ultra Wideband)系统在不同室内环境下信道不同对ISI抑制带来的影响,提出了一种可调观察窗口长度分数间隔线性均衡的(AOWL-FSLE)均衡接收机.该接收机能够根据室内信道不同,自适应地调整观察窗口长度.研究结果表明,当信道变化时,与固定观察窗口长度分数间隔线性均衡的(FOWL-FSLE)均衡接收机相比,该接收机能够更有效地抑制ISI影响,提高系统的BER性能.

关键词:  超宽带  码间干扰  AOWL-FSLE  均衡接收机

DOI：10.11918/j.issn.0367-6234.2011.01.009

分类号:TN925

基金项目:国家自然科学基金资助项目(60702034)



AOWL-FSLE based equalization receiver for UWB systems

LIU Zhi-yong^1,2, ZHANG Qin-yu¹, ZHANG Nai-tong³

1.Shenzhen Graduate School,Harbin Institute of Technology,518055 Shenzhen,Guangdong,China;2.School of Information Science and Engineering,Harbin Institute of Technology( Weihai) ,264209 Weihai,Shandong,China;3.School of Electronic and Information Engineering,Harbin Institute of Technology,Harbin 150001,China)

Abstract:

To suppress the effect that differences of channel in different indoor environment bring to mitigation of ISI for UWB receiver,an adjustable observation window length-fractionally spaced linear equalization ( AOWL-FSLE) equalization receiver is proposed in this paper. The receiver can adaptively select the observation window length according to difference of channel. Simulation results show that when channel changed, compared with fixed observation window length-fractionally spaced linear equalization (FOWL-FSLE) equalization receiver,the AOWL-FSLE equalization receiver can achieve better BER performance,because it can suppress the effect of ISI more effectively.

Key words:  UWB  Inter-Symbol Interference  AOWL-FSLE  equalization receiver