“…This modification of ST with hyperbolic Gaussian window provides better multi-resolution analysis both at higher and lower frequency [13]. Empirical mode decomposition (EMD) augmented with Hilbert transform is a powerful tool for detection of discontinuity [14] in non-stationary signal with extraction of the instantaneous frequency and amplitude. The obtained mono-component called intrinsic mode function (IMF) from EMD does not require any predefined parameters such as window function, mother wavelet etc.…”