Correlation among time difference of arrival estimators and its effect on localization in a multipath environment. - Yun X. Yuan; G. Clifford Carter; J. Eric Salt (ICASSP, 1995)

Near-optimal range and depth estimation using a vertical array in a correlated multipath environment. - Yun X. Yuan; G. Clifford Carter; J. Eric Salt (IEEE Trans. Signal Process., 2000)