发明名称 |
Frequency Error Correction by Using Remodulation |
摘要 |
A communications signal is received through a propagation channel, down-converted in frequency and then converted into a digital signal. The samples of the digital signal are processed to estimate the information conveyed by the communications signal. The estimated information is then used with knowledge about the propagation channel to model the samples of the digital signal. The modeled samples are compared with actual samples of the digital signal to deduce phase errors in the digital signal. The phase errors are then used to deduce a frequency error in the digital signal that can be used to correct the samples of the digital signal and to correct the down-conversion process.
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申请公布号 |
US2008130729(A1) |
申请公布日期 |
2008.06.05 |
申请号 |
US20050662574 |
申请日期 |
2005.09.09 |
申请人 |
CHAPMAN JAMES;RICHARDSON SIMON;VALADON CYRIL;FATEMI-GHOMI NAVID |
发明人 |
CHAPMAN JAMES;RICHARDSON SIMON;VALADON CYRIL;FATEMI-GHOMI NAVID |
分类号 |
H04B17/00;H04L25/02;H04L27/00;H04L27/227 |
主分类号 |
H04B17/00 |
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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