Micro-vibration signal clustering method and device based on improved K-means
A signal clustering and microseismic technology, which is applied in seismic signal processing, measuring devices, seismology, etc., can solve problems such as signal distortion and affecting the waveform shape of microseismic signals, and achieve the effect of good reliability and high processing efficiency
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[0091] refer to Figure 4-6 As shown, firstly, 200 microseismic signals are randomly selected in the mining area, and the waveform diagram of each microseismic signal is similar to Figure 4 shown. Each microseismic signal waveform is actually a set of time series composed of thousands of sampling points.
[0092] Each microseismic signal is converted into a vector form by the DTW vectorizer and stored in the form of X 1 ,X 2 ,X 3 ,...,X n . The DTW vectorizer will pass these vectors back to the K-means control machine for storage. According to the number of clusters K, designate K sample microseismic signal vectors as the initial cluster center vector T 1 , T 2 ,...,T k .
[0093] Then, each microseismic signal X i with each cluster center T k Calculate the DTW distance matrix through the DTW stripper, such as Figure 7 shown in X 1 ,X 2 ,X 3 ,...,X n and cluster center T 1 For example: get the distance matrix Y respectively 11 ,Y 21 ,...,Y n1 . with mat...
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