Basic characteristics of timing synchronization with recursive least-squares for digital mobile radio

被引：0
|
作者：
Fukawa, K
Suzuki, H
机构：
[1] NTT Mobile Commun. Network, Inc., Yokosuka
[2] Tokyo Institute of Technology, Tokyo
来源：
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS | 1996年 / 79卷 / 08期
关键词：
mobile radio; frame synchronization; adaptive algorithm; least squares; third-order estimation;
D O I：
10.1002/ecja.4410790807
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes high precision accurate estimation methods for phase and frame timing frequency by a least-squares adaptive algorithm for high-precision master-slave mobile radio synchronization systems. First, the measurement process of the received timing signal edge in the forward link is described. Next, an estimation algorithm applying least-squares is presented and its estimation error is obtained. Furthermore, it is shown that the third-order estimation is superior to the second-order estimation if the reference oscillator frequency in the slave changes linearly. Computer simulations and experiments numerically verified the theoretical results on the convergence state. A synchronization using a synchronization word transmitted every 20 ms is assumed. It is shown that frequency estimation can be estimated with a precision of 10(-8) in several ten seconds.
引用
收藏
页码：76 / 89
页数：14
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