Power-spectrum-estimation

代码说明：

  从介绍功率谱的估计原理入手分析了经典谱估计和现代谱估计两类估计方法的原理、各自特点厦在Maflab中的实现 方法。(Start from the introduced power spectrum estimation principle analysis of the classical spectrum estimation principle of two types of estimation methods and modern spectral estimation, the respective characteristics of buildings in Maflab implementation method.)