发明名称 |
Adaptive predistortion system and a method of adaptively predistorting a signal |
摘要 |
An adaptive predistortion system for use with a power amplifier having a nonlinear amplification characteristic and a method of adaptively predistorting a signal is provided. In one embodiment, the adaptive predistortion system includes a coefficient update subsystem coupled to an output of the power amplifier and configured to update a set of predistortion coefficients using an iterative process based on an output signal of the power amplifier. Additionally, the adaptive predistortion system includes a predistortion filter subsystem coupled to the coefficient update subsystem and configured to employ the set of predistortion coefficients to reduce a level of distortion associated with the nonlinear amplification characteristic.
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申请公布号 |
US6853246(B2) |
申请公布日期 |
2005.02.08 |
申请号 |
US20020124837 |
申请日期 |
2002.04.18 |
申请人 |
AGERE SYSTEMS INC. |
发明人 |
BAUDER RUEDIGER;KIM YOUNG M.;YAN QING;YIIN JEFFREY L. |
分类号 |
H03F1/32;(IPC1-7):H03F1/26 |
主分类号 |
H03F1/32 |
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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