Research And Realization Of Adaptive Broadband Power Line Communication MODEM Based On DSP

The power line has become a medium for communications, which can transmit high speed data so long as there are power lines. To connect internet by power line is a trend of communication technology, it is also the demand of diversity and modernization. The history and current situation of study on broadband PLC at home and abroad are presented in this paper, the key technology of broadband PLC is reaserched, Peak-to-Average Power Ratio of OFDM is simulated with MATLAB, the algorithms of adaptive equalization are mainly researched, main algorithms are simulated, and software realization scheme of adaptive equalization is presented. The whole scheme of broadband power line modem based on DSP is planed, the hardware structure and the implement steps of the broadband power line modem system are established, the parameters are designed, and some debugging problems are pointed out at the end of this paper.