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系统地研究了使用调频高斯小波变换识别结构系统模态参数。建立了基于系统脉冲响应函数的小波变换的模态参数识别方法，讨论了影响识别精度的因素以及提高识别精度的途径， 并针对两自由度问题给出了方法的验证与分析。
The modal parameters of structural system are studied systematically using frequency modulation Gaussian wavelet transform. The method of modal parameter identification based on the impulse response function of the system is established. The factors that affect the recognition accuracy and the ways to improve the recognition accuracy are discussed. The verification and analysis of the two degrees of freedom are given.