A transform based covariance differencing approach to bearing estimation. - Surendra Prasad; Ronald T. Williams; A. K. Mahalanabis; Leon H. Sibul (ICASSP, 1987)

Localization of coherent sources using a modified spatial smoothing technique. - Ronald T. Williams; Surendra Prasad; A. K. Mahalanabis; Leon H. Sibul (ICASSP, 1987)

A transform-based covariance differencing approach for some classes of parameter estimation problems. - Surendra Prasad; Ronald T. Williams; Arijit K. Mahalanabis; Leon H. Sibul (IEEE Trans. Acoust. Speech Signal Process., 1988)

An improved spatial smoothing technique for bearing estimation in a multipath environment. - Ronald T. Williams; Surendra Prasad; Arijit K. Mahalanabis; Leon H. Sibul (IEEE Trans. Acoust. Speech Signal Process., 1988)

High frequency atmospheric noise mitigation. - J. D. R. Kramer Jr.; Ronald T. Williams (ICASSP (6), 1994)