• 责任者：Li Dahu (Earthquake Administration of Sichuan Province ; Chengdu 610041 ; China) ; He Qiang
• 刊名：Journal of Seismological Research
• 出版年：2011
• 卷期：34(2)
• 关键词：航磁异常 ; aeromagnetic anomaly ; 小波变换 ; wavelet transform
• 页码：p.233-238
• 图表：3 illus., 1 table, 12 refs.
• 分类号：1600
• issnNo：ISSN1000-0666
• isbnNo：CN53-1062/P

The authors explain a multi-scale analysis of wavelet theory and Mallat Algorithm. In view of the previous slow pace of implementation for MATLAB files, the authors propose a new mixed programming technique to call C⁺⁺ source process using MEX file in MATLAB environment. The authors make a calculation and comparison of magnetic anomalies superposition of the sphere theoretical model. Using the method to decompose the aeromagnetic anomalies of a certain measured area and its surrounding areas, the authors get two orders of the typical characteristics of aeromagnetic anomaly map. The results show that detail of aeromagnetic anomaly map obtained through wavelet decomposition also plays a role in the power spectrum analysis.