The theory of laplace wavelet was analyzed . a correlation filtering approach was introduced using the laplace wavelet to decompose a signal into impulse responses of single mode subsystems . modal parameters can be estimated by correlation filtering signal with laplace wavelet 分析了laplace小波的理论，研究了利用laplace小波将系统响应信号分解成为单模态系统冲激响应的相关滤波方法，并通过信号与laplace小波族的相关滤波进行了单模态和多模态系统的模态参数估计。
