分析认为HHT是一种全新而更优越的分析与处理爆破震动信号的时频方法。
Therefore HHT was a kind of new time-frequency method for analyzing and processing the blasting vibration signals.
结构物对爆破振动荷载的动态响应，是其对于不同优势频率的细节信号的不同的动态响应的叠加的结果。
Under blasting vibrating load, the dynamic response of the structure results from the superposed results of its dynamic response to various dominating frequency detail signals.
讨论了爆破地震产生的地震波传播规律，以及地振动信号和仪器记录的电信号之间的关系。
In the paper, the travel law of seismic wave which is excited by explosive shock, and the relation between the vibration signal of ground and electric signal recorded by instruments are discussed.
结合大量工程爆破地震监测资料，对不同爆炸参量下产生的爆破振动信号进行反应谱分析。
According to the monitoring data obtained from engineering blast the blast vibration signals with different explosion parameters are analyzed by response spectrum.
作为模拟爆破地表震波的信号源，对于高挡墙建筑物进行了爆破地震波激励的动态响应的系列分析；
The blasting earthquake simulation signals are applied to analyze the dynamic response of high retaining wall structure under blasting earthquake wave.
应用这些信号可以给出不同频率带上爆破振动的相对能量分布和振动强度的时间变化规律。
By using these signals, the relative energy distributions of blasting vibration in different frequency bands and the regularity of vibration strength varying with time can be obtained.
利用小波分析良好的时频局部化性质，可以很好地对爆破地震波进行信号重构和能量分析。
The wavelet packet method characterized by good time-frequency localization can be used to make signal reconstruction and energy analysis of blasting vibration wave.
利用这种信号的分解与重构算法在南芬露天矿爆破地震信号噪声处理中，取得较好去噪效果。
This signal decomposition and rebuilding algorithm was used in processing the blast - caused seismic signal noise of Nanfen Iron Open - pit Mine, which achieved good noise subtracting effect.
本方法亦可用于分析爆破振动信号在传播过程中能量随时间的衰减规律，对综合研究爆破机理和爆破地震波有指导意义。
The method can be also applied to analyze the attenuation laws of energy for blasting vibration signals during the propagation, blasting mechanism and blasting seismic effects in its entirety.
以某地下工程的微差爆破振动信号进行时-能密度分析为例，对本方法的有效性作了检验。
The effectiveness of the proposed method is verified with time-energy density analysis of vibration signals of millisecond blasting in an underground engineering.
以经爆破试验的四件小钢管件裂纹为研究对象，找出裂纹宽度与磁记忆信号的关系，得出漏磁场变化梯度的最大值随裂缝宽度增加而增加。
Through the examination experiment on four tube pieces crack part, the relation of crack width, the maximum of leaking magnetic field and differential coefficient K is found out.
其次，基于MATLAB时爆破振动信号进行小波包分析，得到了爆破振动信号在不同频带上的能量分布图。
Secondly, three single deck blast vibration signals were analyzed by wavelet packet based on software MATLAB and the change of energy distribution curve at different frequency bands was obtained.
基于现场实测爆破振动数据，采用小波包分析技术对爆破振动信号进行了时频特征分析。
According to the collected field data of blasting vibration, the time-frequency characteristic analysis for blasting vibration signals is made by use of the wavelet packet analysis technology.
并对目前小波分析理论和应用进行了较为全面的总结，建立了适合于爆破震动信号分析的基小波，同时进行了实例分析。
The authors summarize the theory and application of wavelet analysis, find the basic wavelet for blasting seismic signal analysis, and analyze a concrete engineering example.
并对目前小波分析理论和应用进行了较为全面的总结，建立了适合于爆破震动信号分析的基小波，同时进行了实例分析。
The authors summarize the theory and application of wavelet analysis, find the basic wavelet for blasting seismic signal analysis, and analyze a concrete engineering example.
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