发明名称 |
POWER AMPLIFICATION DEVICE, TRANSMITTER, AND POWER AMPLIFICATION CONTROL METHOD |
摘要 |
A power amplifier amplifies a signal. An error signal calculating unit calculates an error signal in accordance with an input signal and an output from the power amplifier. A distortion compensation unit performs predistortion on the input signal by using distortion compensation coefficients that are generated in accordance with a plurality of delay signals obtained by giving different amounts of delay to the input signal and by using an error signal and outputs the input signal subjected to the predistortion to the signal amplifying unit. A tap interval control unit controls the delay intervals of the delay signals that are used for the predistortion performed by the distortion compensation unit in accordance with signal correlation information calculated from the input signal. |
申请公布号 |
US2012229209(A1) |
申请公布日期 |
2012.09.13 |
申请号 |
US201213405441 |
申请日期 |
2012.02.27 |
申请人 |
FUDABA NOBUKAZU;ISHIKAWA HIROYOSHI;UTSUNOMIYA YUICHI;NAGATANI KAZUO;FUJITSU LIMITED |
发明人 |
FUDABA NOBUKAZU;ISHIKAWA HIROYOSHI;UTSUNOMIYA YUICHI;NAGATANI KAZUO |
分类号 |
H03F1/26 |
主分类号 |
H03F1/26 |
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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