Signals of cutting force and vibration are measured with multi-sensor and features in frequency domain and time-frequency domain are extracted by using wavelet package decomposition.
利用多传感器对切削力和振动信号进行监测，通过频率变换提取切削力特征量，采用小波包分解技术提取振动信号特征量。
The proper orthogonal decomposition(POD) technique was applied to identification random wind pressure time or frequency domain specific property.
应用POD法识别作用在结构表面的脉动风荷载的时频域特性。
The proper orthogonal decomposition(POD) technique was applied to identification random wind pressure time or frequency domain specific property.
应用POD法识别作用在结构表面的脉动风荷载的时频域特性。
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