Noise reduction of transient electromagnetic measurement data

摘要：

　　The bipolar synchronous sampling method is widely used for noise reduction in Transient Electromagnetic Measurement.However, in practice the ability of this method is not enough to reduce the strong noise from multi-sources.In this paper, we propose an improved method for optimization of the Instrument Sampling Function to improve the capability of the System against the narrowband noise, specially the power line noise.A Gauss function is designed and used as a window function for corresponding gate function to improve the Noise reducing ability in broadband zone and another Gauss function filtered by a notching filter is designed and used as a window function for weighting function in order to improve the Noise reducing ability in narrowband zone.Finally we compared the results of data processing with the different instrument sampling functions before and after the Optimization, and it proved that this new method here has stronger ability in noise reduction for TEM Measurement.

关键词： PRBS system identification electromagnetic impulse response

作者: Xin Wu Guoqiang Xue

作者单位: Institute of Electronics, CAS Beijing, China Institute of Geology and Geophysics, CAS Beijing, China

会议类型: 国际会议

会议名称: The 7th International Conference on Environmental and Engineering Geophysics & Summit Forum of Chinese Academy of Engineering on Engineering Science and Technology (ICEEG 2016)(第七届环境与工程地球物理学国际会议)

会议地点: 北京

会议语种:英文

页码: 142-145

在线出版日期: 2016-06-27（万方平台首次上网日期，不代表论文的发表时间）