运用 参数估计法AR 法进行功率谱做图 直接输入待做图信号便可-AR method of parameter estimation method power spectrum do plan direct input to be able to make plans signal

包含三个功率谱的程序函数，分别是Batllet频谱估计法，Music频谱估计法，以及Welch频谱估计法，清晰明了，注释清楚。-The program contains three power spectral function, namely Batllet spectrum estimation method, Music spectrum estimation method, and Welch spectral estimation method, clarity, comments c