Ryozo Nagamune
Assistant Professor
B.Sc. (Osaka University), M.Sc. (Osaka University), Ph.D. (Royal Institute of Technology Stockholm, Sweden)
ph: (604) 827-4344
fx: (604) 822-2403
email: nagamune@mech.ubc.ca
website: www.sites.mech.ubc.ca/~nagamune
Research Interests
- Servo control of the magnetic read-write head in hard disk drives (with Roberto Horowitz at UC Berkeley)
- Multiple robust controller synthesis (with Jongeun Choi at Michigan State University)
- Parameter reduction for robust control (with Jongeun Choi at Michigan State University)
- Engine fuel injection control based on gain-sheduling (with George Zhu and Jongeun Choi at Michigan State University)Systems and control theory based on analytic interpolation with complexity constraint (with Anders Lindquist at KTH)Servo control of the magnetic read-write head in hard disk drives (with Roberto Horowitz at UC Berkeley)
- Multiple robust controller synthesis (with Jongeun Choi at Michigan State University)
- Systems and control theory based on Nevanlinna-Pick interpolation with complexity constraint (with Anders Lindquist at KTH)
- Design of MEMS inertia sensors (with Riccardo Antonello at University of Trento and Jongeun Choi at Michigan State University)
Selected Publications
- G.Fanizza and R. Nagamune , “Spectral Estimation by Least-squares Optimization based on Rational Covariance Estimation,” Automatica, vol.43, no.2, pp.362-370, 2007
- X.Huang, R.Nagamune and R.Horowitz, “A Comparison of Multirate Robust Track-following Control Synthesis Techniques for Dual-stage and Multisensing Servo Systems in Hard Disk Drives,” IEEE Transactions on Magnetics , vol.42, no.7, pp.1896-1904, 2006
- R.A.de Callafon, R.Nagamune and R.Horowitz, “Robust Dynamic Modeling and Control of Dual-stage Actuators,” IEEE Transactions on Magnetics , vol.42, no.2, Part 1, pp.247-254, 2006
- R.Nagamune and A.Blomqvist, “Sensitivity shaping with degree constraint by nonlinear least-square optimization,” Automatica , vol.41, no.7, pp.1219-1227, 2005
- A.Blomqvist and R.Nagamune , “Optimization-based computation of analytic interpolants of bounded complexity,” Systems and Control Letters , vol.54, no.9, pp.855-864, 2005
- R.Nagamune , “Closed-loop Shaping Based on Nevanlinna-Pick Interpolation with a Degree Bound,” IEEE Transactions on Automatic Control , vol.49, no.2, pp.300-305, 2004
- R.Nagamune , “A shaping limitation of rational sensitivity functions with a degree constraint,” IEEE Transactions on Automatic Control , vol.49, no.2, pp.296-300, 2004
- A.Blomqvist, A.Lindquist and R.Nagamune , “Matrix-valued Nevanlinna-Pick interpolation with complexity constraint: An optimizaiton approach,” IEEE Transactions on Automatic Control , vol.48, no.12, pp.2172-2190, 2003
- R.Nagamune , “A Robust Solver Using a Continuation Method for Nevanlinna-Pick Interpolation with Degree Constraint,” IEEE Transactions on Automatic Control , vol.48, no.1, pp.113-117, 2003
