基于GPS定位的高精度重、磁勘探研究

发布时间：2018-01-30 19:04

本文关键词： GPS 精度分析 RTK 重磁勘探　出处：《成都理工大学》2013年硕士论文　论文类型：学位论文

【摘要】：近年来，随着GPS定位技术的飞速发展，，凭借其所具有的全天候、全球性、精度高、速度快等诸多优点，已经广泛应用于高精度重、磁勘探测量当中。为今后的重、磁勘探测量带来了一场新的技术革命。采用GPS相对定位方法，可以方便地测得地面上任意两点之间的高精度平面位置信息和高程信息，因此，它在重、磁勘探测量中有广阔的用武之地。特别是基于载波相位测量的实时动态定位—RTK技术的日益完善，使许多原来十分繁琐的野外重、磁勘探控制网测量变得十分便捷，大大提高了作业效率和勘探精度。本文首先对GPS定位技术和RTK技术的原理和工作方法进行了简单的阐述；然后通过对GPS实测数据进行三维约束平差、高程转换、大地水准面精化等一系列处理方法减小误差，提高重、磁勘探测量精度；最后通过实际工程项目，详细阐述GPS定位技术、RTK技术在重、磁测量中的应用过程，以及提高这两种测量方法精度的具体措施。并通过重、磁勘探数据及解释成果，分析总结出GPS定位技术在实际重、磁勘探中所带来的良好效果，为以后重、磁勘探测量提供参考。
[Abstract]:In recent years, with the rapid development of GPS positioning technology, with its all-weather, global, high precision, high speed and many other advantages, has been widely used in high-precision heavy. Magnetic survey has brought a new technological revolution for the future gravity and magnetic survey. Using GPS relative positioning method, it is convenient to measure the high precision plane position information and elevation information between any two points on the ground, so it is heavy. There is a broad opportunity to apply talents in magnetic survey, especially the improvement of real-time dynamic location-RTK technology based on carrier phase measurement, which makes many of the original very tedious field heavy. The measurement of magnetic exploration control network becomes very convenient, and greatly improves the working efficiency and exploration precision. In this paper, the principle and working method of GPS positioning technology and RTK technology are briefly described. Then a series of processing methods, such as 3-D constrained adjustment, height conversion, geoid refinement and so on, are used to reduce the error and improve the precision of gravity and magnetic exploration. Finally, the application process of GPS positioning technology in gravity and magnetic measurement, and the specific measures to improve the accuracy of these two methods are described in detail through the actual project. The data and interpretation results of magnetic exploration are analyzed and summarized. The good effect of GPS positioning technology in actual gravity and magnetic exploration is analyzed and summarized, which provides a reference for gravity and magnetic survey in the future.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P228.4;P631

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