从NDVI序列检测植被“绿化”或“褐化”变化趋势的新方法
唐亮, 赵忠明, 唐娉

A new method for detection “greening” or “browning” change trend in vegetation from NDVI sequences
Liang TANG, Zhongming ZHAO, Ping TANG
图4 EMD方法分解结果
Fig.4 Decomposition results by EMD method