发明名称 |
ADAPTIVE LINEARIZATION OF POWER AMPLIFIERS |
摘要 |
A method and apparatus adaptively compensates for nonlinearities of a power amplifier by measuring a distortion characteristic across the power amplifier during amplification of a distortion detection signal. The distortion detection signal has a well-defined input power versus time relationship, such as ramp-up signal or ramp-down signal. Due to this well-defined relationship, the distortion characteristic can be calculated as a function of the input power level. This calculated function is then utilized to update a predistortion lookup table.
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申请公布号 |
WO0131778(A1) |
申请公布日期 |
2001.05.03 |
申请号 |
WO2000EP10139 |
申请日期 |
2000.10.16 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
PERSSON, JONAS |
分类号 |
H03F1/32;H04B1/04;(IPC1-7):H03F1/32 |
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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