利用Logisitic拟合提取植被物候期（采用植被指数时序数据），可支持多线程并行-extract vegetation phenology (based on vegetation index time series data)　by Logisitic fitting Support multi-threaded parallel

TimeSat是一款不错的时间序列滤波软件，很专业，在提取植被物候参数方面有着很好的应用(TIMESAT is a good time series filtering software, which is very professional and has a good application in extracting vegetation phenological parameters)