Dov Wulich, Eugene I. Plotkin, M. N. S. Swamy, E. Kashi. Separation of close sinusoids by cross-coupled phase locked loop. In IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '89, Glasgow, Scotland, May 23-26, 1989. pages 2128-2131, IEEE, 1989. [doi]
Abstract is missing.