公开(公告)号：WO2004036861A2

公开(公告)日：2004-04-29

申请号：PCT/BE2003/000178

申请日：2003-10-21

Applicant: STMICROELECTRONICS N.V. ,  VANDERPERREN, Yves ,  DEHAENE, Wim

Inventor： VANDERPERREN, Yves ,  DEHAENE, Wim

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675

Abstract: A receiver and a method for receiving a signal comprising a carrier modulated with a known training sequence is described in which an estimate a carrier frequency offset is obtained from an autocorrelation signal by autocorrelation of the part of the received signal containing a known training sequence. The received signal is compensated with the frequency offset obtained to form a compensated received signal, and a timing reference for the received signal is obtained by cross-correlation of the compensated received signal with a known training sequence.

Abstract translation: 描述了一种用于接收包括用已知训练序列调制的载波的信号的接收机和方法，其中通过对包含已知训练序列的接收信号的部分进行自相关，从自相关信号获得载波频率偏移的估计。 接收到的信号用获得的频率补偿补偿以形成补偿的接收信号，并且通过补偿的接收信号与已知训练序列的互相关来获得接收信号的定时参考。

公开(公告)号：EP1593247B1

公开(公告)日：2009-03-11

申请号：EP03769080.7

申请日：2003-10-21

Applicant: STMicroelectronics N.V.

Inventor： VANDERPERREN, Yves ,  DEHAENE, Wim

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675

Abstract: A receiver and a method for receiving a signal comprising a carrier modulated with a known training sequence is described in which an estimate a carrier frequency offset is obtained from an autocorrelation signal by autocorrelation of the part of the received signal containing a known training sequence. The received signal is compensated with the frequency offset obtained to form a compensated received signal, and a timing reference for the received signal is obtained by cross-correlation of the compensated received signal with a known training sequence.

公开(公告)号：EP1593247A2

公开(公告)日：2005-11-09

申请号：EP03769080.7

申请日：2003-10-21

Applicant: STMicroelectronics N.V.

Inventor： VANDERPERREN, Yves ,  DEHAENE, Wim

IPC: H04L27/26

CPC classification number: H04L27/2662 ,  H04L27/2613 ,  H04L27/2657 ,  H04L27/2675

Abstract: A receiver is disclosed for time synchronization and frequency offset correction using a training sequence with a periodic structure (like e.g.in HIPERLAN/2,DVD or DAB). To this purpose the auto-correlation of the received signal is calculated. Coarse time synchronization is performed by analysing the amplitude and/or phase of the auto-correlation signal, e.g. to detect peaks or some characteristic jumps in the amplitude or the phase curve. Fine time synchronization is performed by cross-correlation signal. If the difference of the results of coarse and fine time synchronization exceeds a certain threshold, a ‘synchronization failure’’ signal is outputted. The frequency offset correction is carried out in two steps: first from the auto-correlation of short training sequence the sign (direction) of the frequency offset is determined, then from the auto-correlation of long training sequence the accurate frequency offset is obtained.