Modified frequency domain kurtosis for signal processing
C. Ottonello, S. Pagnan · Electronics Letters · 1994
An operator sensitive to signal probability distribution is obtained, by integrating ideas from higher-order statistics and a frequency approach to signal processing. This function, based on a modified frequency domain kurtosis, assigns a level of stationarity to each signal spectrum component and enhances unsteady components over stationary sinusoids embedded in noise.