Fourier transform

Through analyzing the meteoric characteristic of cloud in different spectrum and integrating the spectrum characteristic of MODIS(Moderate resolution imaging spectroradiometer),a new and simple cloud detection method was put forward which based on multi-spectrum synthesis.

结合MODIS数据的通道特性,分析了云在不同波谱范围的光谱特性,提出了一种基于多光谱综合阈值法的简便新方法。