Combined Feedforward/Feedback Control of Atomic Force Microscopes. - Lucy Y. Pao; Jeffrey A. Butterworth; Daniel Y. Abramovitch (ACC, 2007)

The effect of nonminimum-phase zero locations on the performance of feedforward model-inverse control techniques in discrete-time systems. - Jeffrey A. Butterworth; Lucy Y. Pao; Daniel Y. Abramovitch (ACC, 2008)

Adaptive-delay combined feedforward/feedback control for raster tracking with applications to AFMs. - Jeffrey A. Butterworth; Lucy Y. Pao; Daniel Y. Abramovitch (ACC, 2010)

Dual-adaptive feedforward control for raster tracking with applications to AFMs. - Jeffrey A. Butterworth; Lucy Y. Pao; Daniel Y. Abramovitch (CCA, 2011)

A comparison of ILC architectures for nanopositioners with applications to AFM raster tracking. - Jeffrey A. Butterworth; Lucy Y. Pao; Daniel Y. Abramovitch (ACC, 2011)

A Discrete-Time Single-Parameter Combined Feedforward/Feedback Adaptive-Delay Algorithm With Applications to Piezo-Based Raster Tracking. - Jeffrey A. Butterworth; Lucy Y. Pao; Daniel Y. Abramovitch (IEEE Trans. Control. Syst. Technol., 2012)