发明名称 |
TIME DOMAIN SYMBOL TIMING SYNCHRONIZATION CIRCUIT AND METHOD THEREOF FOR COMMUNICATION SYSTEMS |
摘要 |
A time domain symbol timing synchronization circuit is disclosed, which comprises: an autocorrelation function calculator for calculating cyclic prefix autocorrelation functions and an offset time estimator for searching peak positions of cyclic prefix autocorrelation functions to indicate symbol boundary of received communication symbols. The offset time estimator compares a current peak position and a previous peak position. If (a) the difference of the positions is larger than a threshold and (b) the current peak is smaller than a reference average peak, the current peak is determined as false; the offset time estimator weeds out and replaces the current peak position by the previous peak position; and the current peak is not introduced in the reference average peak calculation.
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申请公布号 |
US2009028254(A1) |
申请公布日期 |
2009.01.29 |
申请号 |
US20070829089 |
申请日期 |
2007.07.27 |
申请人 |
TENOR ELECTRONICS CORPORATION |
发明人 |
WANG CHIH-CHIA;LI SHU-MEI;MA CHINGWO;HSU HSIN-CHIN;LIN YI-SHENG |
分类号 |
H04L27/28 |
主分类号 |
H04L27/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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