【摘要】 基于小波模拟信号的基本原理,在借鉴反应谱拟合法的基础上,提出一种采用频带能量控制为主的地震动合成方法,推导了其合成公式。并以合成的地震样本为例,对其频谱特性进行了分析研究。研究结果表明,该方法合成的地震样本函数能准确地反映出地震动的基本特性,特别是地震动的时频非平稳性,具有较高的工程实际应用价值。更多还原

【Abstract】 A method of ground shock composition is introduced, which is mainly based on the wavelet transformation and on the frequency band power control. Taking the composed earthquake swatch as an instance, analysis of its spectrum character is carried out. The result shows that the earthquake swatch function composed with the method can accurately reflect the fundamental characteristics of the earthquake. It is of high application value, especially in the time-frequency nonstationary case.更多还原