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arXiv 1409.4512stat.MEstat.AP
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协方差谱时空模型的估计与检验

Estimation and Testing for Covariance-Spectral Spatial-Temporal Models

A. M. Mosammam, J. T. Kent

摘要:

本文探讨了一种时空过程的协方差谱建模策略,它在时间上采用谱方法,在空间上采用协方差方法,便于分析不同空间点的时间频率分量之间的相干性。Stein(2005)在此框架内建立了一个半参数模型,本文旨在更深入地了解该模型的性质,并提出简单直观的估计和检验方法。使用爱尔兰风速数据给出了一个例子。

英文摘要:

In this paper we explore a covariance spectral modelling strategy for spatial-temporal processes which involves a spectral approach for time but a covariance approach for space.It facilitates the analysis of coherence between the temporal frequency components at different spatial sites. Stein(2005) developed a semi-parametric model within this framework.The purpose of this paper is to give a deeper insight into the properties of his model and to develop simple and more intuitive methods of estimation and testing. An example is given using the Irish wind speed data.

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。

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