说明：  有详细的注释，旋转机械二维全息谱计算，可以得到很精确的幅值、频率、相位估计，最大似然（ML）准则和最大后验概率（MAP）准则，插值与拟合，解方程，数据分析，欢迎大家下载学习。
( There are detailed notes, Rotating machinery 2-d holographic spectrum calculation, You can get a very accurate amplitude, frequency, phase estimation, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion, Interpolation and fitting, solution of equations, data analysis, Welcome to download the study.)