Enhanced acquisition and tracking in all digital phase-locked loops

被引：1

作者：

Danesfahani, Reza ^{[1
]}

Moghaddasi, Mohammad ^{[1
]}

Mahlouji, Mahmood ^{[1
]}

机构：

[1] Islamic Azad Univ, Fac Engn, Telecommun Grp, Sci & Res Branch, Tehran, Iran

来源：

CIRCUITS SYSTEMS AND SIGNAL PROCESSING | 2008年 / 27卷 / 04期

关键词：

all digital phase-locked loop; carrier phase synchronization; BER; acquisition; tracking; jitter;

D O I：

10.1007/s00034-008-9042-y

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 presents a technique to substantially mitigate the tracking jitter of all digital phase-locked loops and, hence, enhance the overall performance of the loop. This has been achieved by a structure utilizing a notch filter in a cascade arrangement with the loop filter to suppress the undesired frequency components and preserve the DC value at the output of the loop filter, which represents the trial value of the carrier phase error. A rapid acquisition of the error and a bit error rate (BER) performance close to theoretical results have been achieved.

引用

下载

页码：537 / 552

页数：16

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