太赫兹科学与电子信息学报Issue(1)：103-107,5.DOI:10.11805/TKYDA201401.0103
IGS连续运行参考站高程时间序列功率谱分析
Power spectrum analysis on height time series of IGS continuously operating reference station
摘要
Abstract
In order to improve the accuracy and reliability of GPS data, a method based on the least squares adjustment principle, the least squares adjustment with three times the unit weight error tolerance criteria and robust estimation of gross error detection Inter Quartile Range(IQR) criteria is proposed to detect, eliminate, classify and compare the data in gross error. And time series fitting model and spectral analysis are used to study the elevation components data of the International GNSS Service(IGS) station in the MATLAB platform. By studying the elevation data of Beijing Fangshan station, we can see that the residuals time series of GPS point elevation component are similar to the sine function, of which the period is approximately 1 year, with an amplitude of 0.03. Elevation components from the image data analysis present an obvious linearity, as well as a periodicity, which demonstrates that the principle of least squares, error tolerance and IQR criteria can well reflect the linearity, periodicity and residual spectral features of the elevation data.关键词
连续运行参考站/高程时间序列/快速傅里叶变换/功率谱Key words
continuously operating reference stations/elevation time series/Fast Fourier Transform/power spectrum分类
信息技术与安全科学引用本文复制引用
周亚,王立峰,张思慧,赵刚,张恒璟..IGS连续运行参考站高程时间序列功率谱分析[J].太赫兹科学与电子信息学报,2014,(1):103-107,5.基金项目
国家基础测绘基金资助项目(50474032)地心坐标系推广应用；辽宁工程技术大学优秀青年基金资助项目(09-259) （50474032）
