基于单比特采样的IR-UWB系统采样抖动性能分析  

Performance Evaluation of IR-UWB System in the Presence of Sampling Jitter Based on Monobit Sampling

作　　者：章毅[1] 龚卫林[1] 尹华锐[1] 王卫东[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系无线通信网络实验室,合肥230027

出　　处：《无线通信技术》2010年第3期1-4,8,共5页Wireless Communication Technology

基　　金：国家高科技研究发展(863)计划(2007AA01Z2B2);国家自然基金(60802008)资助

摘　　要：研究了基于单比特采样接收的IR-UWB系统中采样抖动对性能的影响。论文给出了采样抖动的简化分析模型,推导了AWGN信道下全精度采样系统和单比特采样系统的误码率理论解。论文通过仿真实验验证了理论分析的正确性,并分析比较了全精度采样系统、单比特采样系统在AWGN信道与多径衰落信道下的抗采样抖动性能及其原因。This paper investigates the effect of sampling timing jitter in IR - UWB system based on monobit sampling. To address this problem, we develop a simplified model of sampling jitter and derive generic bit error rate expressions for both monobit receiver and full - resolution receiver with sampling jitter in AWGN channel, and validate them with simulation results. Then, we compare and explain the difference of sampling jitter＇s effect between monobit and full - resolution receiver in AWGN channel and multipath fading channel.

关 键 词：单比特数字接收机 脉冲无线电超宽带 采样抖动 

分 类 号：TN925[电子电信—通信与信息系统]