仿真效果非常好，大学数值分析算法，分析了该信号的时域、频域、倒谱，循环谱等,进行逐步线性回归，详细画出了时域和频域的相关图，旋转机械二维全息谱计算，最小均方误差（MMSE）的算法，添加噪声处理。- Simulation of the effect is very good, University of numerical analysis algorithms, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Stepwise linear regression, Correlation diagram shown in detail the time domain and frequency domain, Rotating machinery 2-d holographic spectrum calculation, Minimum mean square error (MMSE) algorithm, Add noise processing.