A frequency domain scheme for high speed telemetry down hole wire line communication
The development of well logging techniques has made it necessary to transfer tremendous data of earth formations penetrated by well bores.However,the effective bandwidth of 7000 meters cable has only reached 100Kb along with great frequency and phase shifts.To achieve reliable communication during the doubly fading channel in time and frequency,it is common to counterbalance the negative effect with frequency domain equalization (FEQ).In this paper,we suggest a combined frequency domain scheme with FEQ and adaptive Trellis Code Modulation (TCM).Both of the two processes are employed in frequency domain and based on the same set of artificial aided data.
down hole wire line channel freqency domian scheme OFDM adaptive TCM FEQ
Wang Zheng Liu DeJun Ai QingHui Cheng Xing Xue DaHuan Yang AiDong Zhao YuGuo
College of Geophysics and Information Engineering China University of Petroleum Beijing, CHINA Bohai Wireline Logging Company Bohai Drilling CO. LTD Dagang, Tianjin, CHINA
国际会议
秦皇岛
英文
1413-1417
2015-09-18（万方平台首次上网日期，不代表论文的发表时间）