| 摘要 |
PURPOSE: An equalizer of an OFDM system is provided to equalize non-linear distortion due to a high output amplifier of the OFDM system by using simultaneously a pre-distorter and a de-rotation method. CONSTITUTION: An equalizer of an OFDM system includes a pre-distorter in order to reduce an error rate due to a non-linear characteristic of a high output amplifier of an OFDM system in a data transmission process. The equalizer reduces largely the error rate by using simultaneously the pre-distorter and a de-rotation method. The equalizer obtains the satisfactory error rate only if OBO(Output Back-Off) of the amplifier is 7dB. |
