摘要
三维电阻率勘探需探查地下电性精细结构,各种干扰场的存在会严重影响勘探结果,因此,对三维电阻率中数据采集系统受到的干扰场进行实时补偿以削减干扰的研究就显得很有必要,它应该成为电法勘探领域中一个有意义的研究课题。探讨LMS自适应滤波算法的基本结构和性能特点,推导出LMS算法的迭代公式。采用自适应滤波算法对三维电阻率的采集系统受到的人工干扰场及天然干扰场进行实时自动补偿,取得了较好的效果。
The presence of interference field in three-dimensional resistivity exploration for exploration the fine structure of underground electrical conductivity can have potential impact on exploration results. So it's becoming very important to study the real time compensation of interference field and subtractive interference in three-dimensional resistivity meters. It should be an interesting research subject in the field of electrical prospecting. This paper describes the basic structure and performance characteristics of a most typical LMS adaptive filtering algorithm,derive the iterative formula of LMS. An adaptive filtering algorithm is applied to real-time compensating the artificial interference field and natural disturbance field interference in three-dimensional resistivity,and achieved a certain effect.
出处
《东华理工大学学报（自然科学版）》
CAS
2013年第S1期63-67,共5页
Journal of East China University of Technology(Natural Science)
基金
科技部国际合作项目"铀矿资源三维电阻率采集系统与成像新技术研究"(2007DFA20790)
江西省教育厅科技落地计划项目"三维电阻率成像系统的成果转化与推广"(赣财教〔2011〕243号)
关键词
三维电阻率数据采集
自适应滤波原理
LMS算法
干扰场
three-dimensional resistivity data acquisition
adaptive filter theory
LMS algorithm
interference field
