基于RBF神经网络的地震与爆破识别技术

利用天然地震震源和人工爆破震源之间信号能量分布的差异,结合RBF神经网络技术,对2类事件进行分类,具体步骤如下:使用8个带通滤波器对事件波形进行滤波,并划分为4个波形段:P波、P波尾波、S波和S波尾波,分别计算每个滤波器信道和波形段的能量特征值,以所得32个特征参数作为输入向量,利用RBF神经网络,对地震和爆破事件进行分类识别。结果表明,基于RBF神经网络的地震事件识别方法,识别率为88.1%,具有较高的准确性,可作为地震与爆破事件识别的一个重要依据。

A technique for earthquake and explosion discrimination based on RBF neural network

In this paper, eight band-pass filters are used to filter the events waveform, which are divided into four waveform segments including P, P coda, S, and S coda. Then, the energy eigenvalues of each filter channel and waveform segment are calculated respectively. Finally, taking the 32 characteristic parameters as input vectors, the RBF neural network is used to classify and identify earthquake and explosion events. The results show that the recognition rate of the method based on the RBF neural network is 88.1%, which has high accuracy and can be used as an important basis for earthquake and blasting event identification.