发明名称 |
Signal transmission system for transmitting a signal with a guard interval and a demodulation method thereof |
摘要 |
Difference between a received signal which is an OFDM modulated signal having a guard interval and a delayed signal acquired by delaying the received signal by time equivalent to a data interval is calculated, a reference signal of an FFT calculation window is generated based upon the acquired result of the calculation of the difference and a predetermined threshold and a boundary between symbols is detected. As a result, the boundary between symbols can be stably detected, compared with a method of detecting a boundary between symbols based upon the result of the correlation calculation of the guard interval and the demodulation of received data is also stably enabled in multipath phasing and ghost.
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申请公布号 |
US2003117943(A1) |
申请公布日期 |
2003.06.26 |
申请号 |
US20020327913 |
申请日期 |
2002.12.26 |
申请人 |
SAKATA SATOSHI;TSUKAMOTO NOBUO |
发明人 |
SAKATA SATOSHI;TSUKAMOTO NOBUO |
分类号 |
H04L27/26;(IPC1-7):H04J11/00 |
主分类号 |
H04L27/26 |
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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