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数学形态学滤波器是一种非线性的滤波器,区别于传统的数字滤波器,形态学滤波器可直接处理时域信号,而无需将信号从时域变换到频域。分析形态学滤波器对振动信号的滤波特性,利用仿真的含噪信号,分别分析形态学滤波器的滤波效果和传统数字滤波器的滤波效果。形态学运算是基于形状的运算,形态学滤波器的低通特性良好,且具有相位保持和运算速度快的优点。
The mathematical morphology filter is a non-linear filter, different from the traditional digital filter. The morphological filter can directly process the time domain signal without changing the signal from the time domain to the frequency domain. Morphological filter analysis of the vibration signal filtering characteristics, the use of simulated noisy signals, respectively, the morphological filter filtering effects and traditional digital filter filtering effect. Morphology operation is based on the shape of the operation, the morphological filter has good low-pass characteristics, and has the advantages of phase retention and fast operation.