由于缺乏必要的监测和相应的养护,世界各地出现了大量桥梁损坏事故,给国民经济和生命财产造成了巨大损失。传统检测手段难以全面反映桥梁的健康状况,尤其是难以对桥梁的安全储备以及退化的途径作出系统的评估。近来出现的小波变换可以综合时频,可探讨其在桥梁参数识别方面的应用。 Owing to the lack of necessary monitoring and corresponding maintenance, a great number of bridge damage accidents have taken place across the world, causing huge losses to the national economy and lives and property. The traditional means of detection are difficult to fully reflect the health status of the bridge. In particular, it is difficult to make a systematic assessment of the safe storage and degradation of the bridge. The recent emergence of wavelet transform can synthesize time-frequency, to explore its application in bridge parameter identification.