| 发明名称 | Distortion compensation amplifier device and distortion compensation method | ||
| 摘要 | A distortion compensation amplifier device for compensating for distortion of a transmission signal generated by amplifying the transmission signal and for outputting the compensated transmission signal. The distortion compensation amplifier includes a storage unit that stores therein distortion compensation coefficients; a processor that performs distortion compensation processing on the transmission signal by using one of the distortion compensation coefficients; and an amplifier that amplifies the transmission signal that has been subjected to the distortion compensation processing; wherein the processor calculates an average value of the distortion compensation coefficients stored in the storage unit, and calculates the distortion compensation coefficient on the basis of the transmission signal, and the average value. | ||
| 申请公布号 | US8798197(B2) | 申请公布日期 | 2014.08.05 |
| 申请号 | US201113198888 | 申请日期 | 2011.08.05 |
| 申请人 | Fujitsu Limited | 发明人 | Matsubara Satoshi;Hirata Shuya;Ohba Takeshi;Shako Hideharu;Sugiyama Jun |
| 分类号 | H04K1/02;H04L27/36;H04L27/20 | 主分类号 | H04K1/02 |
| 代理机构 | Fujitsu Patent Center | 代理人 | Fujitsu Patent Center |
| 主权项 | 1. A distortion compensation amplifier device for compensating for distortion of a transmission signal generated by amplifying the transmission signal and for outputting the compensated transmission signal, comprising: a storage unit that stores therein distortion compensation coefficients; a processor that performs distortion compensation processing on the transmission signal by using one of the distortion compensation coefficients; and an amplifier that amplifies the transmission signal that has been subjected to the distortion compensation processing; wherein the processor calculates an average value of the distortion compensation coefficients stored in the storage unit, and calculates the distortion compensation coefficient on the basis of the transmission signal, and the average value; wherein the distortion compensation coefficients include amplitude distortion compensation coefficients for compensating amplitude components of the transmission signal and phase distortion compensation coefficients for compensating phase components of the transmission signal, and the processor further calculates an average value of the phase distortion compensation coefficients. | ||
| 地址 | Kawasaki JP | ||