ML estimation of time and frequency offset in OFDM systems

被引：1483

作者：

vandeBeek, JJ ^{[1
]}

Sandell, M ^{[1
]}

Borjesson, PO ^{[1
]}

机构：

[1] LULEA UNIV TECHNOL,CTR DISTANCE SPANNING TECHNOL,S-95187 LULEA,SWEDEN

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1997年 / 45卷 / 07期

关键词：

D O I：

10.1109/78.599949

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：

We present the joint maximum likelihood (ML) symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing (OFDM) systems. Redundant information contained within the cyclic prefix enables this estimation without additional pilots. Simulations show that the frequency estimator may be used in a tracking mode and the time estimator in an acquisition mode.

引用

页码：1800 / 1805

页数：6

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