Intrinsic Time-Scale Decomposition (itd)

Intrinsic Time-Scale Decomposition (ITD) is an adaptive and data-driven method like Empirical Mode Decomposition (EMD). It can decompose a complex signal into several Proper Rotation Components (PRCs) and a residual.

Reference:
[1] Frei, M. G., & Osorio, I. (2007, February). Intrinsic time-scale decomposition: time–frequency–energy analysis and real-time filtering of non-stationary signals. In Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences (Vol. 463, No. 2078, pp. 321-342). The Royal Society.