Scaling-Basis Chirplet Transform

Time-frequency method with high time-frequency resolution for processing non-stationary vibration signal collected from rotational machinery

This method belongs to chirplet transform. It includes a replacement kernel function that can vary the chirp rate with frequency and time by scaling the TF basis at and around the corresponding time center. This enables the corresponding chirplets to accurately match the targeted slopes for every trajectory of a multi-component signal and within any window length. It exibits a good performance on multi-component signals with close-spaced frequencies and high levels of background noise.