GPS变形监测信号提取在矿山测量中的应用

摘要

介绍基本的GPS变形监测信号模型，并探讨GPS在矿区变形监测中存在的主要问题。针对GPS变形监测噪声信号提取问题，提出Kalman-EMD方法获取有效变形信息，并通过模拟和内蒙古伊泰矿区实际观测数据对该算法的有效性和准确性进行了验证。实验结果表明：利用该算法，GPS变形监测结果可以达到水准仪监测水平。%The basic signal model of deformation monitoring with GPS was introduced and the main problems of GPS deformation monitoring in mining area were discussed. For the problem of noise signal extraction in GPS deformation monitoring, the Kalman-EMD method was proposed to obtain the effective deformation signal. The reliability and effectiveness of the methodology were tested and verified by analog signal. The results of experiment in Mongolia show that the accuracy of the proposed GPS deformation monitoring model is equivalent to that of level method.