Surfer绘图工具在音频大地电磁测深数据处理中的应用研究

利用Surfer专业技术绘图工具结合前人开发的大地电磁法数据处理软件,对EH-4输出的文件格式、原始时间序列文件,以及变换分析处理后的原始信号,重新计算阻抗文件,使用Surfer软件的二次开发功能快速准确地绘制出视电阻率拟断面图,对断面中的数据进行加密,自动插值、平滑。算例结果表明利用音频大地电磁测深数据处理软件和Surfer二次开发功能在成图效率和质量方面有较大的提高。

The Application of Surfer Drawing Tools to Data Processing of Audio Frequency Magnetotelluric Sounding

Using Surfer professional and technical drawing tools, combined with the previous development of magnetotelluric data processing software, the output of the EH - 4 file format , the file of original time series, and the original signal of transform analysis after treatment are done. The impedance file is recalculated. Furthermore, using the software of Surfer secondary development function, the apparent resistivity pseudo section is quickly and accurately drawn, and the data in the section are encrypted, automatical interpolated and smoothed. The calculation results show that the use of audio frequency magnetotelluric data processing software and Surfer secondary development improve the efficiency and quality of drawing greatly.