日长变化的多种频谱分析方法比较研究

• 作 者: 林海博 赵娟
• 机 构: DepartmentofAstronomy
• 出 处: 应用地球物理:英文版
• 发表日期: 2018年3期
• 关键词: LOD MEM LOMB PDM Unequally
• 基金项目: the National Natural Science Foundation of China(No.11203004),the Fundamental Research Funds for the Central Universities.

The variations in the Earth’s rotation are important to space dynamic theory and natural disasters because they affect the length-of-day(LOD)and consequently human lives.We use maximum entropy method(MEM),Lomb method(LOMB),and phase dispersion minimizatio