On the performance of subspace methods with array model errors and spatial smoothing. - K. V. S. Hari; Uma Gummadavelli (ICASSP (4), 1993)

Blind channel estimation and equalization with partial-response input signals. - Uma Gummadavelli; Jitendra K. Tugnait (ICASSP (3), 1994)

Effect of spatial smoothing on the performance of subspace methods in the presence of array model errors. - K. V. S. Hari; Uma Gummadavelli (Autom., 1994)

Blind equalization and channel estimation with partial response input signals. - Jitendra K. Tugnait; Uma Gummadavelli (IEEE Trans. Commun., 1997)