海洋可控源电磁数据可视化预处理软件开发

Development of visualized software for data preprocessing of marine controlled-source electromagnetic method

针对我国海洋可控源电磁数据预处理存在处理效率低、集成度低、缺少可视化界面的问题,本文基于VS2012的MFC框架,采用工厂模式,运用C++11语言,开发了一套海洋可控源电磁数据可视化预处理软件.软件开发中充分利用STL标准模板库简化开发难度,引入多线程技术以提高处理效率.软件的主要功能包括:电磁场数据与导航数据加载与回放、电磁场数据时域到频域转换、导航数据与频域数据合并以及生成MVO与PVO曲线.软件具有界面友好、操作便捷、处理高效等特点.最后,利用开发的软件对我国某海域实测数据进行处理,验证了其实用性与处理结果的正确性,取得较好应用效果.

For the matter of low processing efficiency and a low level of integration and lacking data visualization software environment,which result in an inefficient result in our country’s Marine Controlled-Source Electromagnetic（ MCSEM） data preprocessing. We developed a set of marine controlled-source electromagnetic data visualization pre-processing software to promote this procedure,in which we designed the Class type based on Factory Pattern,adopted C ＋ ＋ 11 programming standard language and constructed architecture based on MFC framework of VS2012,In addition,we not only widely used STL technology to simplify the difficulty of the software development,but also made full use of multi-threading technology to improve the computing power of the software. The main functions of the software are as follows： 1.loading and playback of electromagnetic data and navigation data,which displays the recorded data in chart; 2. transform from electromagnetic data to frequency domain, which obtains the required frequency characteristics; 3. combine navigation data with frequency domain data; 4. generating MVO and PVO curves,which generates preprocessed data and prepares for the next phase of the inversion processing. This software has some characteristics as friendly interface, easy operation, and high efficiency for procedures. The software is verified by some practical sampling MCSEM data on our south sea area in our country for related processing and analysis. In the processing,the software saved a lot of time for data processing and the preprocessed data quality was greatly as well. The software achieved good result in practices.