CPO和FCN经验模型的比较
Comparison of CPO and FCN empirical models
摘要：
本文从观测资料的表现形式、自由核章动（FCN）参数的变化、预报精度等方面，对几种已公开发表的天极偏移（CPO）和自由核章动（FCN）的经验模型，包括作者提出的模型，进行了比较研究。在此基础上，提出了一些切实可行的建议。
英文摘要：
In this presentation, several publicly available empiric models of the celestial pole offset (CPO) and free core nutation (FCN), included those developed by the author, are investigated and compared each other from different points of view, such as representation of the observation data, FCN parameters variation, prediction accuracy. Based on this study, some practical recommendations are proposed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
