High-bitrate downhole telemetry system

The oil and gas industry is the driving force behind pushing embedded communication technologies beyond their original intention. The downhole power line communication design based on multicarrier modulation methods is commonly implemented in ADSL systems. The system is designed to transmit and receive high-bitrate data on a multi-conductor power transmission cable that is highly contaminated with broadband electrical noise generated by downhole equipment, requiring innovative crosstalk cancellation techniques in both the analog and digital domain to achieve better than 10 −6 bit error rate (BER) performance at 200°C operating temperatures.