摘要：In order to optimize the technological process of the water distributor and do further sturdy about the interference pattern of the injection layers in China, we needs reasonable and reliable methods to obtain the dynamic parameters of water injection layers. In this paper, a novel DC power line carrier technology based on the Orthogonal Frequency Division Multiplexing (OFDM) technology is proposed, aiming to save the difficult communication problem between the underground and the surface. Using the signals on the power line, it includes the modulation and demodulation techniques and filter encoding technology to transmit the data. Experimental results show that this new communication technology has high noise resistance and low error rate, provides reliable technology support and data to optimize the injection process and build the model of the dynamic parameters change among all the layers.
关键词：DC power line carrier; OFDM; modulation; demodulation; filter; encoding
