发明名称 |
APPARATUS OF COMPENSATING FOR FREQUENCY OFFSET USING PILOT SYMBOL IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM |
摘要 |
An apparatus of compensating for a frequency offset using a guard interval and a pilot symbol, which are inserted at a transmitter, in an OFDM (Orthogonal Frequency Division Multiplexing) system. The OFDM system receives an OFDM signal in which a pilot symbol is inserted in data of a frame unit at regular intervals and a guard interval is inserted in a data symbol. In the system, a first carrier synchronizer receives a data symbol stream obtained by converting the OFDM signal to digital data, and detects a guard interval of each data symbol, to compensate for a coarse frequency offset. A fast Fourier transform part OFDM-demodulates a signal output from the first carrier synchronizer. A second carrier synchronizer detects the pilot symbol from the demodulated data symbol stream to compensate for a fine frequency error. |
申请公布号 |
WO0103347(A1) |
申请公布日期 |
2001.01.11 |
申请号 |
WO2000KR00723 |
申请日期 |
2000.07.05 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;KIM, HYE-JEONG |
发明人 |
KIM, HYE-JEONG |
分类号 |
H04J11/00;H04B1/707;H04B1/7087;H04J13/00;H04L7/00;H04L27/00;H04L27/26 |
主分类号 |
H04J11/00 |
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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