| 发明名称 | Distortion compensation apparatus and distortion compensation method | ||
| 摘要 | A distortion compensation apparatus includes a calculation unit that acquires, from calculation performed by using a factor and an output signal from the amplifier, a distortion component that is associated with the distortion generated in the amplifier, and a comparing unit that compares a signal that is obtained by giving the distortion component acquired by the calculation unit to an output signal output from the amplifier, with an input signal input to the amplifier, to which a distortion component is previously given. The calculation unit adjusts, on the basis of a comparison result obtained by the comparing unit, the factor that is used for the calculation. | ||
| 申请公布号 | US9559638(B2) | 申请公布日期 | 2017.01.31 |
| 申请号 | US201514690692 | 申请日期 | 2015.04.20 |
| 申请人 | FUJITSU LIMITED | 发明人 | Lozhkin Alexander Nikolaevich |
| 分类号 | H03F1/26;H03F1/32;H03F3/24 | 主分类号 | H03F1/26 |
| 代理机构 | Fujitsu Patent Center | 代理人 | Fujitsu Patent Center |
| 主权项 | 1. A distortion compensation apparatus that compensates distortion generated in an amplifier that amplifies an input signal, the distortion compensation apparatus comprising: a calculation unit that calculates a distortion component that is associated with the distortion generated in the amplifier by using a polynomial including a factor and an output signal from the amplifier; an adding unit that adds the distortion component to the output signal from the amplifier; and a comparing unit that compares a signal that is obtained by the adding unit, with an input signal input to the amplifier, to which a distortion component is previously given, wherein the calculation unit adjusts, on the basis of a comparison result obtained by the comparing unit, the factor that is included in the polynomial. | ||
| 地址 | Kawasaki JP | ||