Fuzzy two-stage carrier synchronization

被引：4
|
作者：
Tseng, SM [1 ]
Zheng, YB [1 ]
机构：
[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
来源：
FUZZY SETS AND SYSTEMS | 1999年 / 102卷 / 02期
关键词：
fuzzy systems; digital phase-lock loop; carrier synchronization;
D O I：
10.1016/S0165-0114(97)00113-9
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper presents a novel two-stage carrier synchronization scheme. It provides both faster acquisition and better noise suppression than a conventional digital phase-locked loop (DPLL). The first stage produces the frequency estimate. The second stage is a new phase estimator, a DPLL with fuzzy adaptive bandwidth, to track frequency offset and phase. The simulation results show the improved performance. The main advantage of the proposed scheme over [7] is that it does not need optimization of fuzzy membership functions and a low computational cost of a DPLL is preserved. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：211 / 219
页数：9
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