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在井下存在复杂的电磁干扰,电路中的高频信号由于信号电磁波的影响,信噪比会因此降低,信号功率会在传输过程中衰减。应用电磁波理论对传输线变压器的系统分析,通过使用传输线变压器,使得高频信号在普通电路中的不利因素得到解决,利用传输线变压器实现阻抗匹配,提高传输线的信号传输效率。最终使井下传输信号的误码率降低到0.3%以下。
There are complex electromagnetic interference in the well. The high frequency signal in the circuit will reduce the signal-to-noise ratio due to the influence of the signal electromagnetic wave and the signal power will be attenuated in the transmission. The application of electromagnetic wave theory to the transmission line transformer system analysis, through the use of transmission line transformers, making high-frequency signals in the ordinary circuit to solve the unfavorable factors, the use of transmission line transformer impedance matching to improve transmission line signal transmission efficiency. Finally, the bit error rate of underground transmission signal is reduced below 0.3%.