Abstract
We introduced wavelet analysis as a useful and powerful data processing method to detect specified information for road roughness especially for defects on road profile. It is clarified that space-frequency analysis is a very potent method to find the location of defects such as pothole, fault and rutting with a space frequency domain.
Furthermore, Multi-resolution analysis is applied for denoising from acceleration data at a vehicle body induced from road irregularity and a continuous wavelet transform is used to detect a self-similarity of road profile. By use of wavelet analysis, several new findings on road surface evaluation are reported in this paper.
