The Research Of GPS Deformation Monitoring Data Processing

Deformation monitoring is targeted to monitor the displacement, with continuous, long-term repeated measurement tracking monitoring target,to ensure the engineering safety and reliability, which is of great significance. In recent years, the application of GPS technology gets swift and great development. As a new spatial positioning technology, it has replaced the traditional electronic measuring methodes and optical measuring methodes in many fields, especially in surveying field. The development of GPS deformation monitoring can bring economic benefits directly, reduce the surveying work intensity effectively, and improve the working efficiently. But the precondition is that the GPS data must be handled correctly, and the deformation information also should be analyzed correctly, to meet the needed objectives of true meaning of deformation monitoring. Deformation monitoring with GPS technology and the monitoring data processing is studied in this paper, as it is of great significance.This paper introduces the GPS deformation monitoring data processing technology, and compares the advantages and disadvantages of monitoring data processing technologies, and the existing problems are also pointed out. This paper gives a detailed analysis of GPS technology in the processing of measurement error, and it also further figures out the corresponding error reducing methods. On this basis, operation mode of GPS technology in deformation monitoring is designed, and the results of the analysis is also studied.As a high performance signal analysis method, wavelet analysis method is the application of wavelet theory in GPS deformation monitoring data processing. This paper studies the noise character under the strong background, and the extraction of useful signal, combined with the crustal deformation monitoring. From the gross error detection and outlier detection, the experimental GPS data is tested, the approving effect is obtained, and reliability and feasibility of the processing of deformation monitoring data are also verified.