GeoProbe-based Secondary Development And Software Integration Of Aviation Transient Electromagnetic Software

Time domain aviation transient electromagnetic method is one of the commonly used methods in aviation geophysical exploration.This article is based on the theory of time-domain aviation transient electromagnetic method,and is the same as the national key research and development plan: "Deep Earth Resources Exploration and Exploitation" project "subject of" Aviation Geophysical Technology Demonstration and Processing Interpretation Software Platform Development in Typical Coverage Area " The combination of electromagnetic method and ground electric method data processing method research and software development "(No.2017YFC0602202),on the Geo Probe software platform developed by the China Land Resources Aeronautical Geophysical Prospecting and Remote Sensing Center,developed a set of data preprocessing,filtering,and regional video Aerospace transient electromagnetic plugin system for resistivity calculation,and integrated into Geo Probe software platform in the form of plugin.In this paper,based on the detection principle of aeronautical transient electromagnetic method,combined with the one-dimensional forward modeling of aeronautical transient electromagnetic in the time domain,the formula for calculating the apparent resistivity of the entire region in the aeronautical transient electromagnetic in the time domain is deduced.Model testing with electrical models.Comprehensive analysis of the data characteristics of aviation transient electromagnetic method,according to the theory and principles of software development,combined with demand analysis,using object-oriented design ideas and processes,designed a good user interface and data management system to facilitate humancomputer interaction.This plugin uses C # language as a visual programming tool to design the interface of the plugin.It uses Fortran to write the core algorithm program of aviation transient electromagnetic data processing.It uses C # to call the Fortran dynamic library method to give full play to the advantages of the two languages and use mixed programming.Technology,write code interface to ensure the correct transmission of data.Geo Probe software adopts the "platform + plugin" software development model,which avoids the difficulty of secondary development of traditional software.According to the overall function of system development and related specifications,this plug-in has developed a total of three modules,which are data pre-processing modules.Data filtering module,the whole area apparent resistivity calculation module.The data preprocessing module includes fixed window filtering and adaptive window filtering;the data filtering module includes fixed window filtering,adaptive window filtering,and minimum curvature filtering.And each module was tested.Through the processing of the measured data in Qinling area,the effectiveness of the module is verified and the requirements of software development are met.