Study on lower spatial resolution image simulation of field survey data

Comparaion between higher spatial resolution image and lower spatial resolution image in time serial is very helpful for the changes of land cover. During the process of acquiring field survey data, higher spatial resolution image is always set as the reference image to select sampling plots. But sometimes the data of sampling plots need to be enchased to the lower spatial resolution image to get the simulation image for the further analysis. The paper sets wheat field survey data of He Bei province and TM image data as input parameters, and designs a pixel Unmixing model to acquire the 250 meter MODIS simulation image.