The approximate transformation equation between the time-frequency characteristic spectrum and the elastic acceleration response spectrum was established. The characteristic wavelet effects the non-linear structural displacement responses, making them dispersed, and can be simulated by sine function.
分析发现了地震波的时频特征谱和特征子波,前者与地震波的弹性加速度反应谱有很好的相关性,可以建立它们之间的相互转换关系;后者影响着非线性结构的地震位移反应,使得同类地震波输入下的结构位移反应有很大的离散性,可以利用正弦函数来模拟特征子波。
参考来源 - 地震波的时频特征分析及其与结构地震响应的关系·2,447,543篇论文数据，部分数据来源于NoteExpress
Applying wavelet denoise to improve the test signal, the dynamic characteristic parameters of a overflow valve were obtained by selecting characteristic point of the signal.
此系统应用小波降噪的方法提高测试信号的质量，然后提取信号特征点，得到溢流阀动态特性的各项参数。
The method uses wavelet transform and principle component analysis to preprocess fault signal, afterward training and testing wavelet neural network with the preprocessed fault characteristic data.
该方法首先利用小波变换和主成分分析对故障信号进行预处理，然后用处理后的故障特征数据对小波神经网络进行训练和测试。
Based on the learning characteristic of neural network and the function approximation ability of the wavelet, a new self tuning control algorithm is presented.
依据小波的非线性逼近能力和神经网络的自学习特性，提出了一种基于小波神经网络模型的自校正控制算法。
应用推荐