Spatial spectrum for direction of arrival estimation of multiple non-stationary wideband sources in the time-frequency plane. - Om Cholnam; Dokkil Kang; Cholyong Jong (IET Signal Process., 2016)

Design and Properties of a Family of Reduced Interference Distributions. - Om Cholnam; Choe Cholryong (Circuits Syst. Signal Process., 2018)

Blind signal separation method and relationship between source separation and source localisation in the TF plane. - Om Cholnam; Gwak Chongil; Rim Kyong Chol (IET Signal Process., 2018)