摘要
深度转化因子的选取直接影响着基于反演成像的高密度电法勘探资料处理、解释速度和精度。本文以高密度电法反演成像理论为基础,通过构建大量电阻率异常体模型,选择不同深度转化因子进行反演成像模拟,经对反演成像结果、反演速度和收敛性等综合性能的对比与分析,得到了高密度反演过程中最佳的深度转化因子。经工程实测数据验证可知,深度转化因子选0.3时反演成像精度较高、反演速度和收敛性较快。
The selection of depth shift factor directly affects data prospecting,speed interpretation and accuracy of high-density electrical prospecting based on inversion imaging.In this paper,we acquired,by comprehensive analysis and comparison of the results of inversion imaging,inversion speed and convergence,the optimal depth shift factor in the process of high density inversion data processing.On the basis of high density resistivity inversion imaging theory,agreat many resistivity abnormal body models were built,and inversion imaging simulation test was done by selecting different depth shift factors,The result shows that the inversion imaging,through verifying and analyzing the engineering test data,has higher accuracy,faster inversion velocity and convergence,when depth shift factor selects 0.3.
出处
《工程地球物理学报》
2013年第4期527-532,共6页
Chinese Journal of Engineering Geophysics
基金
国家自然科学基金(编号:41272300)
福建省教育厅项目(编号:JA10043)联合资助
关键词
高密度电法
深度转化因子
反演成像
异常体
high-density resistivity method
deep shift factor
inversion tomography
abnormal body
