Study on the Road Dynamic Response Signal Acquire and Process

As the road dynamic response is a transient and weak signal with strong noise, it is very difficult to extract their feature, and the traditional Fourier filtering technology is not suitable for the non-stationary signal processing. Using the "multi-resolution analysis" feature of wavelet Transform, the signal can be decomposed in the specific frequency band. Furthermore, the global reconstruction after processing the high frequency decomposing coefficients can separate the valuable components from the noise successfully. Based on the analysis of data collected at the scene to prove that the signal processing method can effectively solve the de-noise problem of the road dynamic response.