文章基本信息

标题：Synchronization for IR-UWB System Using a Switching Phase Detector-Based Impulse Phase-Locked Loop
本地全文：下载
作者：Zheng, Lin ; Liu, Zhenghong ; Wang, Mei 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2012
卷号：34
期号：2
页码：175-183
DOI：10.4218/etrij.12.0111.0299
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：Conventional synchronization algorithms for impulse radio require high-speed sampling and a precise local clock. Here, a phase-locked loop (PLL) scheme is introduced to acquire and track periodical impulses. The proposed impulse PLL (iPLL) is analyzed under an ideal Gaussian noise channel and multipath environment. The timing synchronization can be recovered directly from the locked frequency and phase. To make full use of the high harmonics of the received impulses efficiently in synchronization, the switching phase detector is applied in iPLL. It is capable of obtaining higher loop gain without a rise in timing errors. In different environments, simulations verify our analysis and show about one-tenth of the root mean square errors of conventional impulse synchronizations. The developed iPLL prototype applied in a high-speed ultra-wideband transceiver shows its feasibility, low complexity, and high precision.
关键词：Synchronization;impulse radio;ultra-wideband communication;phase-locked loop;phase detector