发明名称 |
Automatic gain control methods and apparatus suitable for use in OFDM receivers |
摘要 |
Automatic gain control (AGC) methods and apparatus suitable for use in orthogonal frequency division multiplexing (OFDM) receivers are described. One AGC method includes the steps of repeatedly performing a first AGC process which adjusts amplifier gain based on determining that a signal level of multiple time sample values is outside a limit set by a first predefined threshold; and repeatedly performing a second AGC process which adjusts the amplifier gain based on determining that a signal level of multiple frequency sample values associated with a plurality of pilot tones is outside a limit set by a second predefined threshold. Preferably, the first AGC process is performed repeatedly at a first rate and the second AGC process is performed repeatedly at a second rate that is less than the first rate.
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申请公布号 |
US2003194029(A1) |
申请公布日期 |
2003.10.16 |
申请号 |
US20030414576 |
申请日期 |
2003.04.14 |
申请人 |
HEINONEN JARI M.;HIRANO MICHAEL R.;ZHANG HONGLIANG |
发明人 |
HEINONEN JARI M.;HIRANO MICHAEL R.;ZHANG HONGLIANG |
分类号 |
H03G3/00;H03G3/30;H04L27/26;(IPC1-7):H04L27/08 |
主分类号 |
H03G3/00 |
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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