Publications of Raymond de Callafon at UCSD, Dept. of MAE

Research

Publications and work in progress

Below you will find a list of publications, written or co-authored by Raymond de Callafon. Some of the papers are available on-line and can be down loaded by clicking on the index number [i] of the publication. The on-line papers are in the form of a PDF file and in order to download, read and print it, you will need (a free copy of) Adobe Acrobat reader. I case you cannot find a link to download a paper, drop me a line via email and I hope to send you the paper as soon as possible.

Journal publications

[1a]	Van den Hof, P.M.J., Schrama, R.J.P., de Callafon, R.A. and Bosgra, O.H., “Identification of normalized coprime plant factors from closed-loop experimental data”, European Journal of Control, Vol. 1, No. 1, pp. 62-74, 1995.
[2a]	de Callafon, R.A., Van den Hof, P.M.J., “Control relevant identification for H_infinity-norm based performance specifications,” Selected Topics in Identification, Modelling and Control, Vol.8, pp. 31-38, 1995. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[3a]	de Callafon, R.A., and Van den Hof, P.M.J., “FREQID – frequency domain identification toolbox for use with Matlab”, Selected Topics in Identification, Modelling and Control, Vol. 19, pp. 129-134, 1996. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[4a]	de Callafon, R.A., Van den Hof, P.M.J., and Bongers, P.M.M., "A unified approach to stability robustness for uncertainty descriptions based on fractional model representations", IEEE Trans. On Automatic Control, AC-41, pp. 723-727, 1996.
[5a]	Van den Hof P.M.J., de Callafon R.A., van Donkelaar E. “CLOSID-a Matlab toolbox for closed-loop system identification,” Selected Topics in Identification, Modelling and Control, Vol.9, pp. 121-128, 1996. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[6a]	Van den Hof, P.M.J., de Callafon, R.A., “Multivariable closed-loop identification: from indirect identification to dual-Youla parametrization,” Selected Topics in Identification, Modelling and Control, Vol.9, pp. 1-7, 1996. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[7a]	de Callafon, R.A., de Roover, D., Van den Hof, P.M.J., “Multivariable least squares frequency domain identification using polynomial matrix fraction descriptions,” Selected Topics in Identification, Modelling and Control, Vol.9, pp. 31-37, 1996. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[8a]	de Callafon, R.A. and Van den Hof, P.M.J. “Suboptimal feedback control by a scheme of iterative identification and control design,” Mathematical Modelling of Systems, Vol. 13, pp. 77-101, 1997.
[9a]	de Callafon, R.A., Harper, D.H.F., Skelton, R.E. and Talke, F.E., “Dynamic modeling and feedback control of a piezo-based milli-actuator,” Selected Topics in Identification, Modelling and Control, Vol.11, pp. 79-85, 1998. Bosgra, O.H., Van den Hof, P.M.J. and Scherer, C.W. (Eds.)
[10a]	Harper D.H.F., de Callafon R.A., Skelton R.E. and Talke F.E., “Piezoelectric stack-based microactuator for hard disk drives”, Journal of Information Storage & Processing Systems, Vol. 1, No. 4, pp.329-332, 1999. Publisher: Birkhauser Boston, USA.
[11a]	de Callafon, R.A., Harper, D.H.F., Skelton, R.E. and Talke, F.E., “Experimental modeling and feedback control of a piezo-based milli-actuator,” Journal of Information and Storage Processing Systems, Vol. 1, No. 3, pp. 217-224, 1999. Publisher: Birkhauser Boston, USA.
[12a]	Van den Hof P.M.J., de Callafon R.A., van Donkelaar E. CLOSID-a Matlab toolbox for closed-loop system, Journal A, Vol. 40, No. 3, pp.19-24, 1999. Publisher: Soft Vision, Belgium.
[13a]	de Callafon, R.A. and Van den Hof, P.M.J., “Multivariable Feedback Relevant System Identification of a Wafer Stepper System”, IEEE Transactions on Control Systems Technology, Vol. 9, No. 2, pp. 381-390, 2001.
[14a]	de Callafon, R.A., “Discussion on the Robust Design of Predictive Controllers in Presence of Unmodeled Dynamics'', European Journal of Control, Vol.9, Nb.5, pp. 507-509, 2003.
[15a]	Rotunno, M., de Callafon, R.A. and Talke, F.E., “Comparison and Design of Servo Controllers for Dual-Stage Actuators in Hard Disk Drives”, IEEE Transactions on Magnetics, Vol. 39, No. 5, pp. 2597-2599, 2003.
[16a]	Teerjuis, A.P., Cools, S.J.M. and de Callafon, R.A., “Reduction of Flow-Induced Suspension Vibrations in a Hard Disk Drive by Dual-Stage Suspension Control”, IEEE Transactions on Magnetics, Vol. 39, No. 5, p.. 2237-2239, 2003.
[17a]	J. Zeng and R.A. de Callafon, “Control relevant estimation of plant and disturbance dynamics - model approximation on the basis of closed-loop data”, to appear in Automatica, 2004.
[18a]	J. Jose, R.J. Taylor, R.A. de Callafon and F.E. Talke, “Characterization of Lateral Tape Motion and Disturbances in the Servo Position Error Signal of a Linear Tape Drive”, to appear in Tribology International, 2004.

Book and book chapters

[1b] de Callafon, R.A. “Feedback Oriented Identification for Enhanced and Robust Control: a fractional approach applied to a wafer stage”, Ph.D. Thesis, Delft University of Technology, The Netherlands, Delft University Press, ISBN 90-407-1759-1.

[2b] Van den Hof, P.M.J. and de Callafon, R.A., “Control Relevant Identification and Servo Design for a Compact Disc Player”, Chapter 11 in Iterative Identification and Control, Springer Verlag, 2002. Albertos, P. and Sala, A. (Eds.).

[3b] de Callafon, R.A. and Van den Hof, P.M.J., “Control Relevant Identification and Robust Motion Control of a Wafer Stage”, Chapter 12 in Iterative Identification and Control, Springer Verlag, 2002. Albertos, P. and Sala, A. (Eds.).

[4b] de Callafon, R.A., “Response of Dynamic Systems”, Chapter 25 in The Mechatronics Handbook, CRC Press, 2002. Bishop, R.H. (Ed. In Chief).

[5b] de Callafon, R.A. and Van den Hof, P.M.J., “Identification for Control”, EOLSS Encyclopedia of Life Support Systems, 2001.

Conference publications

[1c] de Callafon, R.A., Van den Hof, P.M.J., and Steinbuch, M., “Control relevant identification of a compact disc pick-up mechanism,” Proc. 32nd IEEE Conference on Decision and Control, San Antonio, USA, pp. 2050-2055, 1993.

[2c] de Callafon, R.A., Van den Hof, P.M.J., and de Vries, D.K., “Identification and control of a compact disc mechanism using fractional representations,” Prepr. 10th IFAC Symposium on System Identification, Vol. 12, Copenhagen, Denmark, pp. 121-126, 1994.

[3c] Van der Klauw, A.C., Van Ingen, G.E., Van Rhijn, A., Olivier, S., Van den Bosch, P.P.J., & de Callafon, R.A., “Closed-loop identification of a distillation column,” Proc. 3rd IEEE Conference on Control Applications, Glasgow, England, pp. 275-280, 1994.

[4c] de Callafon, R.A. and Van den Hof, P.M.J., “Control relevant identification for H -norm based performance specifications,” Proc. 34th IEEE Conference on Decision and Control, New Orleans, USA, pp. 3498-3503, 1995.

[5c] de Callafon, R.A. and Van den Hof, P.M.J., “Filtering and Parametrization issues in feedback relevant identification based on fractional model representations,” Proc. 3rd European Control Conference, 11, Rome, Italy, pp. 441-446, 1995.

[6c] de Callafon, R.A., Van den Hof, P.M.J., and Bongers, P.M.M., “A unified approach to stability robustness for uncertainty descriptions based on fractional model representations,” Proc. 34th IEEE Conference on Decision and Control, New Orleans, USA, pp. 1976-1981, 1995.

[7c] de Callafon, R.A., Roover, D. and Van den Hof, P.M.J., “Multivariable least squares frequency domain identification using polynomial matrix fraction descriptions”, Proc. 35th IEEE Conference on Decision and Control, Kobe, Japan, pp. 2030-2035, 1996.

[8c] Van den Hof, P.M.J. and de Callafon, R.A., “Multivariable closed--loop identification: from indirect identification to dual-Youla Parametrization,” Proc. 35th IEEE Conference on Decision and Control, Kobe, Japan, pp. 1397-1402, 1996.

[9c] Van den Hof, P.M.J., Donkelaar, E.T., Dötsch, H.G.M. and de Callafon, R.A., “Control-relevant uncertainty modeling directed towards performance robustness,” Prepr. 13th IFAC World Congress, San Francisco, USA, 1996.

[10c] de Callafon, R.A. and Van den Hof, P.M.J., “Connecting system identification and robust control by a factorization approach,” Prepr. 11th IFAC Symposium on System Identification, Kitakyushu, Japan, pp. 117-122, 1997.

[11c] de Callafon, R.A. and Van den Hof, P.M.J., “Low order control design by feedback relevant identification and closed loop controller reduction,” Proc. 2nd IFAC Symposium on Robust Control Design, Budapest, Hungary, pp. 43-48, 1997.

[12c] de Callafon, R.A. and Van den Hof, P.M.J., “Multivariable feedback relevant system identification of a wafer stepper system,” Proc. 16th ASME Conference on Mechanical Vibration and Noise, Sacramento, USA, 1997.

[13c] de Callafon, R.A., Van den Hof, P.M.J., and Donkelaar, E.T., “CLOSID - a closed loop system identification toolbox for matlab,” Prepr. 11th IFAC Symposium on System Identification, Kitakyushu, Japan, pp. 983-988, 1997.

[14c] de Callafon, R.A., Van den Hof, P.M.J., and Donkelaar, E.T., “CLOSID - a closed loop system identification toolbox for matlab,” Prepr. 11th IFAC Symposium on System Identification (poster session), Kitakyushu, Japan, page 989, 1997.

[15c] Rotunno, M. and de Callafon, R.A., "Optimal mix of passive and active control in canti-levered structures", Proc. of the 12th Eng. Mech. Conference, La Jolla, CA, USA, pp. 270-273, 1998.

[16c] de Callafon, R.A., "On-line damage identification using model based orthonormal functions", Proc. 2nd Int. Workshop on Structural Health Monitoring, Stanford, CA, USA, 1999.

[17c] de Callafon, R.A. and Van den Hof, P.M.J., “Process control-relevant and closed-loop identification,” Prepr. 14th IFAC World Congress, Beijing, China, pp. 67-72, 1999.

[18c] Rotunno, M. and de Callafon, R.A., “Fixed order H_oo control design for dual-stage hard disk drives”, Proc. 39th IEEE Conference on Decision and Control, Sydney, Australia, pp. 3118-3119, 2000.

[19c] de Callafon, R.A., “Coprime factor based closed-loop model validation”, Proc. 39th IEEE Conference on Decision and Control, Sydney, Australia, pp. 3319-3320, 2000.

[20c] de Callafon R.A. and Van den Hof P.M.J. “Closed-loop model validation using coprime factor uncertainty models”, Proc. 12th IFAC Symposium on System Identification, Santa Barbara, CA, Vol.1, pp.43-48, 2000.

[21c] Rotunno, M, de Callafon, R.A. “Low order H_oo control design for a piezo-based milli-actuator. Proc.12th IFAC Symposium on System Identification, Santa Barbara, CA, Vol.2, pp.603-608, 2000.

[22c] Dunbar W.B., de Callafon, R.A. and Kosmatka J.B. “Coulomb and viscous friction fault detection with application to a pneumatic actuator”, Proc. IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Vol.2, pp.1239-1244, 2001.

[23c] Rotunno, M. and de Callafon, R.A. “A Bundle Method for Solving the Fixed Order Control Problem”, Proc. 41st IEEE Conference on Decision and Control, Las Vegas, Nevada, USA, pp. 3156-3161, 2002.

[24c] Calvert, S., Conte, J. P., Moaveni, B., Schulz, W., de Callafon, R.A., “Full scale testing results of structural damage detection using long gage fiber Bragg gratings and modal analysis”, Proc. of the 2003 Smart Structures / Non Destructive Evaluation, 2003 Symposium, SPIE, San Diego, CA, March 2-6, 2003.

[25c] de Callafon, R.A., “Estimating parameters in a lumped parameter system with first principle modeling and dynamic experiments”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 1613-1618, 2003.

[26c] Bitmead, R.R. and de Callafon, R.A., “Control Related Topics in Identification - Closed Loop Experiments and Identification for Control”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 1601-1606, 2003.

[27c] Crowder, M. and de Callafon, R.A., “Coprime factor perturbation models for closed-loop model validation techniques”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 543-548, 2003.

[28c] Zeng, J. and de Callafon, R.A., “Model approximation of plant and noise dynamics on the basis of closed-loop data”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 531-536, 2003.

[29c] Crowder, M., and de Callafon, R.A., “Coprime Factor Based Closed-Loop Model Validation Applied to a Flexible Structure”, Proc. 42nd IEEE Conference on Decision and Control, Maui, Hawaii, USA, 2003.

[30c] Zeng, J. and de Callafon, R.A., “Feedforward Noise Cancellation in an Airduct using Generalized FIR Filter Estimation”, Proc. 42nd IEEE Conference on Decision and Control, Maui, Hawaii, USA, 2003.

[31c] Vestmoen Nilsen, N.K. and de Callafon, R.A., “Control Design for a Piezo-Electric Dual-Stage Instrumented Suspension”, Proc. IASTED Int. Conference on Control and Applications, March, Marina del Rey, CA USA, 2004.

[32c] Zeng, J. and de Callafon, R.A., “Servo Experiments for Modeling of Actuator and Windage Dynamics in a Hard Disk Drive”, Proc. IEEE International Conference on Mechatronics, Istanbul, Turkey, 2004.

[33c] Zeng, J. and de Callafon, R.A., “Recursive Least Squares Generalized FIR Filter Estimation for Active Noise Cancellation”, Proc. IFAC Workshop on Adaptation and Learning in Control and Signal Processing, Yokohama, Japan, 2004.

[34c] Crowder, M. and de Callafon, R.A., “Time Domain Control Oriented Model Validation using Coprime Factor Perturbations ”, Proc. 43nd IEEE Conference on Decision and Control, Paradise Island, Bahamas, 2004.

[35c] Zeng, J. and de Callafon, R.A., “Feedforward estimation for active noise cancellation in the presence of acoustic coupling”, Proc. 43nd IEEE Conference on Decision and Control, Paradise Island, Bahamas, 2004.

Work to be done and in progress

[1d] Ellenbroek, R.M.L., Bukkems, B.H.M. and de Callafon, R.A., “Active Feedback Noise Control Applied to a BOSE® headset”, IN PREPARATION for the European Journal of Control.

[2d] Rotunno, M., and de Callafon, R.A., “Design of Model-Based Feedforward Compensators for Vibration Compensation in a Flexible Structure”, SUBMITTED to the Journal of Vibration and Control.

[3d] Crowder, M. and de Callafon, R.A., “Spectral models for windage disturbance characterization of a hard disk drive microactuator suspension”, SUBMITTED to the Journal of Vibration and Control.

[4d] Rotunno, M., Oboe, R. and de Callafon, R.A. “Modeling Product Variations in Hard Disk Drive Micro-Actuator Suspensions” SUBMITTED to the Journal on Microsystem Technologies - Micro- and Nanosystems Information Storage and Processing Systems.

[5d] Crowder, M. and de Callafon, R.A., “Closed-Loop Model Validation Techniques for Health Monitoring of Aeroservoelastic Systems”, IN PREPARATION for the AIAA Journal of Guidance, Control and Dynamics

[6d] Bossens, F., de Callafon, R.A. and Skelton, R.E., “Experimental modeling and modal analysis of a Tensegrity Structure”, IN PREPARATION for the International Journal of Solids and Structures

[7d] Zeng, J. and de Callafon, R.A., “Recursive filter estimation for feedforward noise cancellation with acoustic coupling”, SUBMITTED to the Journal of Sound and Vibration.

[8d] de Callafon, Zeng, J., and Kinney, C.E., “Active Noise Control for the Forced-Air Cooling System in a Data Projector”, SUBMITTED to Control Engineering Practice.

[1b]	de Callafon, R.A. “Feedback Oriented Identification for Enhanced and Robust Control: a fractional approach applied to a wafer stage”, Ph.D. Thesis, Delft University of Technology, The Netherlands, Delft University Press, ISBN 90-407-1759-1.
[2b]	Van den Hof, P.M.J. and de Callafon, R.A., “Control Relevant Identification and Servo Design for a Compact Disc Player”, Chapter 11 in Iterative Identification and Control, Springer Verlag, 2002. Albertos, P. and Sala, A. (Eds.).
[3b]	de Callafon, R.A. and Van den Hof, P.M.J., “Control Relevant Identification and Robust Motion Control of a Wafer Stage”, Chapter 12 in Iterative Identification and Control, Springer Verlag, 2002. Albertos, P. and Sala, A. (Eds.).
[4b]	de Callafon, R.A., “Response of Dynamic Systems”, Chapter 25 in The Mechatronics Handbook, CRC Press, 2002. Bishop, R.H. (Ed. In Chief).
[5b]	de Callafon, R.A. and Van den Hof, P.M.J., “Identification for Control”, EOLSS Encyclopedia of Life Support Systems, 2001.

[1c]	de Callafon, R.A., Van den Hof, P.M.J., and Steinbuch, M., “Control relevant identification of a compact disc pick-up mechanism,” Proc. 32nd IEEE Conference on Decision and Control, San Antonio, USA, pp. 2050-2055, 1993.
[2c]	de Callafon, R.A., Van den Hof, P.M.J., and de Vries, D.K., “Identification and control of a compact disc mechanism using fractional representations,” Prepr. 10th IFAC Symposium on System Identification, Vol. 12, Copenhagen, Denmark, pp. 121-126, 1994.
[3c]	Van der Klauw, A.C., Van Ingen, G.E., Van Rhijn, A., Olivier, S., Van den Bosch, P.P.J., & de Callafon, R.A., “Closed-loop identification of a distillation column,” Proc. 3rd IEEE Conference on Control Applications, Glasgow, England, pp. 275-280, 1994.
[4c]	de Callafon, R.A. and Van den Hof, P.M.J., “Control relevant identification for H -norm based performance specifications,” Proc. 34th IEEE Conference on Decision and Control, New Orleans, USA, pp. 3498-3503, 1995.
[5c]	de Callafon, R.A. and Van den Hof, P.M.J., “Filtering and Parametrization issues in feedback relevant identification based on fractional model representations,” Proc. 3rd European Control Conference, 11, Rome, Italy, pp. 441-446, 1995.
[6c]	de Callafon, R.A., Van den Hof, P.M.J., and Bongers, P.M.M., “A unified approach to stability robustness for uncertainty descriptions based on fractional model representations,” Proc. 34th IEEE Conference on Decision and Control, New Orleans, USA, pp. 1976-1981, 1995.
[7c]	de Callafon, R.A., Roover, D. and Van den Hof, P.M.J., “Multivariable least squares frequency domain identification using polynomial matrix fraction descriptions”, Proc. 35th IEEE Conference on Decision and Control, Kobe, Japan, pp. 2030-2035, 1996.
[8c]	Van den Hof, P.M.J. and de Callafon, R.A., “Multivariable closed--loop identification: from indirect identification to dual-Youla Parametrization,” Proc. 35th IEEE Conference on Decision and Control, Kobe, Japan, pp. 1397-1402, 1996.
[9c]	Van den Hof, P.M.J., Donkelaar, E.T., Dötsch, H.G.M. and de Callafon, R.A., “Control-relevant uncertainty modeling directed towards performance robustness,” Prepr. 13th IFAC World Congress, San Francisco, USA, 1996.
[10c]	de Callafon, R.A. and Van den Hof, P.M.J., “Connecting system identification and robust control by a factorization approach,” Prepr. 11th IFAC Symposium on System Identification, Kitakyushu, Japan, pp. 117-122, 1997.
[11c]	de Callafon, R.A. and Van den Hof, P.M.J., “Low order control design by feedback relevant identification and closed loop controller reduction,” Proc. 2nd IFAC Symposium on Robust Control Design, Budapest, Hungary, pp. 43-48, 1997.
[12c]	de Callafon, R.A. and Van den Hof, P.M.J., “Multivariable feedback relevant system identification of a wafer stepper system,” Proc. 16th ASME Conference on Mechanical Vibration and Noise, Sacramento, USA, 1997.
[13c]	de Callafon, R.A., Van den Hof, P.M.J., and Donkelaar, E.T., “CLOSID - a closed loop system identification toolbox for matlab,” Prepr. 11th IFAC Symposium on System Identification, Kitakyushu, Japan, pp. 983-988, 1997.
[14c]	de Callafon, R.A., Van den Hof, P.M.J., and Donkelaar, E.T., “CLOSID - a closed loop system identification toolbox for matlab,” Prepr. 11th IFAC Symposium on System Identification (poster session), Kitakyushu, Japan, page 989, 1997.
[15c]	Rotunno, M. and de Callafon, R.A., "Optimal mix of passive and active control in canti-levered structures", Proc. of the 12th Eng. Mech. Conference, La Jolla, CA, USA, pp. 270-273, 1998.
[16c]	de Callafon, R.A., "On-line damage identification using model based orthonormal functions", Proc. 2nd Int. Workshop on Structural Health Monitoring, Stanford, CA, USA, 1999.
[17c]	de Callafon, R.A. and Van den Hof, P.M.J., “Process control-relevant and closed-loop identification,” Prepr. 14th IFAC World Congress, Beijing, China, pp. 67-72, 1999.
[18c]	Rotunno, M. and de Callafon, R.A., “Fixed order H_oo control design for dual-stage hard disk drives”, Proc. 39th IEEE Conference on Decision and Control, Sydney, Australia, pp. 3118-3119, 2000.
[19c]	de Callafon, R.A., “Coprime factor based closed-loop model validation”, Proc. 39th IEEE Conference on Decision and Control, Sydney, Australia, pp. 3319-3320, 2000.
[20c]	de Callafon R.A. and Van den Hof P.M.J. “Closed-loop model validation using coprime factor uncertainty models”, Proc. 12th IFAC Symposium on System Identification, Santa Barbara, CA, Vol.1, pp.43-48, 2000.
[21c]	Rotunno, M, de Callafon, R.A. “Low order H_oo control design for a piezo-based milli-actuator. Proc.12th IFAC Symposium on System Identification, Santa Barbara, CA, Vol.2, pp.603-608, 2000.
[22c]	Dunbar W.B., de Callafon, R.A. and Kosmatka J.B. “Coulomb and viscous friction fault detection with application to a pneumatic actuator”, Proc. IEEE/ASME International Conference on Advanced Intelligent Mechatronics, Vol.2, pp.1239-1244, 2001.
[23c]	Rotunno, M. and de Callafon, R.A. “A Bundle Method for Solving the Fixed Order Control Problem”, Proc. 41st IEEE Conference on Decision and Control, Las Vegas, Nevada, USA, pp. 3156-3161, 2002.
[24c]	Calvert, S., Conte, J. P., Moaveni, B., Schulz, W., de Callafon, R.A., “Full scale testing results of structural damage detection using long gage fiber Bragg gratings and modal analysis”, Proc. of the 2003 Smart Structures / Non Destructive Evaluation, 2003 Symposium, SPIE, San Diego, CA, March 2-6, 2003.
[25c]	de Callafon, R.A., “Estimating parameters in a lumped parameter system with first principle modeling and dynamic experiments”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 1613-1618, 2003.
[26c]	Bitmead, R.R. and de Callafon, R.A., “Control Related Topics in Identification - Closed Loop Experiments and Identification for Control”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 1601-1606, 2003.
[27c]	Crowder, M. and de Callafon, R.A., “Coprime factor perturbation models for closed-loop model validation techniques”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 543-548, 2003.
[28c]	Zeng, J. and de Callafon, R.A., “Model approximation of plant and noise dynamics on the basis of closed-loop data”, Prepr.. 13th IFAC Symposium on System Identification, Rotterdam, the Netherlands, pp. 531-536, 2003.
[29c]	Crowder, M., and de Callafon, R.A., “Coprime Factor Based Closed-Loop Model Validation Applied to a Flexible Structure”, Proc. 42nd IEEE Conference on Decision and Control, Maui, Hawaii, USA, 2003.
[30c]	Zeng, J. and de Callafon, R.A., “Feedforward Noise Cancellation in an Airduct using Generalized FIR Filter Estimation”, Proc. 42nd IEEE Conference on Decision and Control, Maui, Hawaii, USA, 2003.
[31c]	Vestmoen Nilsen, N.K. and de Callafon, R.A., “Control Design for a Piezo-Electric Dual-Stage Instrumented Suspension”, Proc. IASTED Int. Conference on Control and Applications, March, Marina del Rey, CA USA, 2004.
[32c]	Zeng, J. and de Callafon, R.A., “Servo Experiments for Modeling of Actuator and Windage Dynamics in a Hard Disk Drive”, Proc. IEEE International Conference on Mechatronics, Istanbul, Turkey, 2004.
[33c]	Zeng, J. and de Callafon, R.A., “Recursive Least Squares Generalized FIR Filter Estimation for Active Noise Cancellation”, Proc. IFAC Workshop on Adaptation and Learning in Control and Signal Processing, Yokohama, Japan, 2004.
[34c]	Crowder, M. and de Callafon, R.A., “Time Domain Control Oriented Model Validation using Coprime Factor Perturbations ”, Proc. 43nd IEEE Conference on Decision and Control, Paradise Island, Bahamas, 2004.
[35c]	Zeng, J. and de Callafon, R.A., “Feedforward estimation for active noise cancellation in the presence of acoustic coupling”, Proc. 43nd IEEE Conference on Decision and Control, Paradise Island, Bahamas, 2004.

[1d]	Ellenbroek, R.M.L., Bukkems, B.H.M. and de Callafon, R.A., “Active Feedback Noise Control Applied to a BOSE® headset”, IN PREPARATION for the European Journal of Control.
[2d]	Rotunno, M., and de Callafon, R.A., “Design of Model-Based Feedforward Compensators for Vibration Compensation in a Flexible Structure”, SUBMITTED to the Journal of Vibration and Control.
[3d]	Crowder, M. and de Callafon, R.A., “Spectral models for windage disturbance characterization of a hard disk drive microactuator suspension”, SUBMITTED to the Journal of Vibration and Control.
[4d]	Rotunno, M., Oboe, R. and de Callafon, R.A. “Modeling Product Variations in Hard Disk Drive Micro-Actuator Suspensions” SUBMITTED to the Journal on Microsystem Technologies - Micro- and Nanosystems Information Storage and Processing Systems.
[5d]	Crowder, M. and de Callafon, R.A., “Closed-Loop Model Validation Techniques for Health Monitoring of Aeroservoelastic Systems”, IN PREPARATION for the AIAA Journal of Guidance, Control and Dynamics
[6d]	Bossens, F., de Callafon, R.A. and Skelton, R.E., “Experimental modeling and modal analysis of a Tensegrity Structure”, IN PREPARATION for the International Journal of Solids and Structures
[7d]	Zeng, J. and de Callafon, R.A., “Recursive filter estimation for feedforward noise cancellation with acoustic coupling”, SUBMITTED to the Journal of Sound and Vibration.
[8d]	de Callafon, Zeng, J., and Kinney, C.E., “Active Noise Control for the Forced-Air Cooling System in a Data Projector”, SUBMITTED to Control Engineering Practice.