大地测量与地球动力学2025，Vol.45Issue(6)：551-554,579,5.DOI:10.14075/j.jgg.2024.07.322
不同空间大地技术确定的ERP参数时变特征分析
Time-Varying Characteristics of ERP Parameters Determined by Different Spatial Geodetic Techniques
摘要
Abstract
This paper takes the Earth rotation parameters(ERP)obtained by each individual measurement means as research data,and outputs the processing results in the time domain and frequency domain respec-tively.Then the index parameters obtained from each analysis are compared with the data analysis results ob-tained by joint calculation in international Earth rotation service(IERS).The results show that the time-var-ying characteristics of ERP obtained by various measurement methods are different.关键词
地球自转参数/时变特征/频谱分析/快速傅里叶变换/功率谱密度分析Key words
Earth rotation parameters/time-varying characteristics/spectrum analysis/fast Fourier transform/power spectral density analysis分类
测绘与仪器引用本文复制引用
魏二虎,朱颜,张云龙,罗一乐,田晓静,刘经南..不同空间大地技术确定的ERP参数时变特征分析[J].大地测量与地球动力学,2025,45(6):551-554,579,5.基金项目
国家自然科学基金(42374015) （42374015）
国家重点研发计划(2018YFC1503600) （2018YFC1503600）
天津市轨道交通导航定位及时空大数据技术重点实验室开放课题基金(TKL2024B04). National Natural Science Foundation of China,No.42374015 （TKL2024B04）
National Key Research and Development Program of China,No.2018YFC1503600 （）
Open Fund of Tianjin Key Laboratory of Rail Transit Navigation Positioning and Spatio-Temporal Big Da-ta Technology,No.TKL2024B04. （）
