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Study on underground transmission of electromagnetic-measurement while drilling (EM-MWD)
Author(s): 
Pages: 4-7
Year: Issue:  10
Journal: Electronic Measurement Technology

Keyword:  EM-MWD无线传输信道井下激励装置曼彻斯特编码;
Abstract: 本文从井下激励装置、无线传输信道、编码和调制以及地面接收四个方面探讨了电磁波随钻测量系统无线传输技术.指出国内的研究与实际应用存在一定的差距,并以俄罗斯ZTS 电磁波随钻测量系统为例,分析了国外先进的井下无线传输技术.
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