期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1992
卷号：XXIX Part B7
页码：329-333
出版社：Copernicus Publications
摘要：Fourier analysis is applied to multitemporal global normalized vegetation, index (NVI) data ~orextracting the useful parameters for monitoring environment change . It ,IS found that ,the thIrdorder of power spectrum can be used for monitoring agriculture areas wIth two crops In a year.And also, the phase of the first order is used for finding the peak of the monthly NVI data and canbe used for monitoring the variation of the season. We show the usefulness of, th~ p~wer spectrummaps of each order and the phase map of the first order for monitoring the dlstnbutlOn change ofthe environment condition
