海洋测绘2018，Vol.38Issue(2)：12-15,4.DOI:10.3969/j.issn.1671-3044.2018.02.004
基于小波分析的海洋磁力测量数据调差方法
Adjustment of Marine Magnetic Survey Data with Wavelet Multi-scale Analysis Method
摘要
Abstract
In view of the problem that systematic error along a line is difficult to adjust with the traditional survey network adjustment method in situations of inadequate check fine data or irregular line network layout,the adjustment method based on wavelet multi-scale analysis for marine magnetic survey data is studied.The function of the wavelet multi-resolution analysis is used to separate the relatively high frequency systematic error from low frequency magnetic anomaly information,and the influence that the choice of wavelet decomposition order on adjusting result is discussed.Simulation analysis shows that,when the order of the two-dimensional wavelet decomposition is 1,and the order of one-dimensional decomposition is 4,the adjusting result is best.The mean square error and the average value of the difference between systematic error along survey line separated and simulation error are 0.29nT and-0.35nT respectively.The feasibility of using wavelet multi-scale analysis method to adjust marine magnetic data is verified.关键词
海洋磁力测量/测线系统差/小波多尺度分析/频域滤波/调差Key words
marine magnetic survey/systematic error/wavelet multi-scale analysis/frequency filtering/adjustment分类
天文与地球科学引用本文复制引用
刘强,边刚,殷晓冬,赵俊生,王一丁..基于小波分析的海洋磁力测量数据调差方法[J].海洋测绘,2018,38(2):12-15,4.基金项目
国家自然科学基金(41374108,41476087). （41374108,41476087）
