用于时频分析算法，相关分析过程的matlab方法，详细画出了时域和频域的相关图，数据模型归一化，模态振动，包括 MUSIC算法，ESPRIT算法 ROOT-MUSIC算法，通过虚拟阵元进行DOA估计，鲁棒性好，性能优越。- For time-frequency analysis algorithm, Correlation analysis process matlab method, Correlation diagram shown in detail the time domain and frequency domain, Normalized data model, modal vibration, Including the MUSIC algorithm, ESPRIT algorithm ROOT-MUSIC algorithm, Conducted through virtual array DOA estimation, Robustness, superior performance.