论文部分内容阅读
Ｏｍｎｉｐｈｏｎｅ三分量地震检波器是大庆石油管理局从加拿大引进的智能型三分量检波器．该检波器内部含ＣＰＵ，其最大特点具有“极化滤波”的处理功能．“极化滤波”是根据质点在三维空间的运动轨迹不同，压制圆形质点运动轨迹的干扰面波，而保留直线质点运动轨迹的有效波信号．介绍了该检波器芯体结构及顺次采样的硬件、软件的功能实现．在此基础上分析了顺次时延采样对理想线性体波及圆形面波的影响．最后，提出了改进方法及其工程实现．结果表明：采样时延由２５０μｓ减小到５０μｓ后，三分量的频率响应特性更加平坦，分量间的串扰降低；三个分量对理想圆形面波的压制能力亦有所提高；随着分析信号频率的提高，效果更加显著．
Omniphone three-component geophone Daqing Petroleum Administration introduced from Canada, the intelligent three-component geophone. The detector internal CPU, its most prominent feature has a “polarization filter” processing. “Polarization filter” is based on the particle trajectory in three-dimensional space, suppress the circular particle motion trajectory interference surface wave, and keep the particle trajectory of the effective wave signal. The structure of the detector core and the hardware and software of sequential sampling are introduced. Based on this, the effect of sequential delay sampling on ideal linear body and circular surface wave is analyzed. Finally, it proposes the improvement method and its engineering realization. The results show that the frequency response characteristics of the three components are more flat and the crosstalk between the components is reduced after the sampling delay is reduced from 250μs to 50μs. The suppression ability of the three components on the ideal circular surface wave is also improved. With the analysis of the signal Increased frequency, the effect is more significant.