基于傅立叶级数合成的自适应泵冲干扰消除模块设计

Design of Adaptive Pump Impulse Interference Elimination Module Based on Fourier Series Synthesis

泵冲干扰是泥浆脉冲随钻遥传系统的主要干扰来源,该干扰源位于地面,强度远大于井下传输到地面的通信信号,对遥传系统的性能造成严重影响,因此抑制泵冲干扰对提高整个遥传系统的接收性能具有重要意义。文章设计了一种基于傅里叶级数合成的自适应泵冲干扰抑制方法。仿真结果表明,该算法能有效抑制泵冲干扰信号,同时也不会造成脉冲信号的波形失真。

Pumping interference is the main interference source of mud pulse teletransmission system while drilling.The interference source is located on the surface,and the intensity is much greater than the communication signal transmitted to the surface,which has a serious impact on the performance of teletransmission system.It is important to suppress pumping interference to improve the receiving performance of the whole teletransmission system.This paper designs an adaptive pumping interference suppression method based on Fourier series synthesis.The simulation results show that the algorithm can effectively suppress the pumping interference signal,but does not cause the waveform distortion of the pulse signal.