BIBLIOGRAPHY 199
[76] M. Dahleh, A. Tesi, and A. Vicino, “Extremal properties forthe parametric robust
performance problem,” Tech. Rep. UCSB-ME-91-4, Univ. California, Santa
Barbara, Mech.Eng., 1991. also submitted to 30th IEEE CDC.
[77] B. C. Moore, “Principal co mponents analysis in linear systems: controllability,
observability and model reduction,” IEEE Trans. Auto. Control, vol.AC-26,
pp. 17–31, 1981.
[78] D. F. Enns, Model Reduction for Control System Design. PhD thesis, Stanford
University,1984.
[79] K. Glover, “All optimal Hankel-norm approximations of linea r multivariablesystems
and their L∞-error bounds,” Int. J. of Control, vol. 39, no. 6, pp. 1115–1193, 1984.
[80] A. V. Oppenheim and R. W. Schafer, Digital Signal Processing.New Jersey:
Prentice-Hall, 1975.
[81] J. L. Adcock, “Curve fitter for pole-zero analysis,” Hewlett-Packard Journal, p. 33,
January 1987.
[82] M. Safonov, A. Laub, and G. Hartman, “ Feedbackproperties of multivariable
systems: The role and use of the return difference matrix,” IEEE Trans. Auto.
Control, vol. 26, no. 1, 1981.
[83] G. Hartman, M. Barrett, and C. Greene, “Control designs for an unstable vehicle,”
Tech.Rep. NAS 4–2578, NASA Dryden Flight Research Center, 1979.
[84] P. Merkel and R. Whitmoyer, “Developmentand evaluation of precision control
modes for fighter aircraft,”in AIAA Gu idance,Navigat ion and Cont. Conf., 1976.
Paper No. 76–1950.
[85] J. T. Spanos and M. C. O’Neal, “Nanometer level optical control on the JPL
Phase B testbed,” in ADPA/AIAA/ASME/SPIE Conf. Active Mat. & Adapt.
Struct., Nov 1991.
[86] M. C. O’Neal and J. T. Spa nos, “Optical pathlength control in the nanometer
regime on the JPL Phase B interferometer testbed,” in SPIE Int. Symp. Optical
Appl. Sci. & Eng., July 1991.
[87] J. T. Spanos and A. Kissil, “Mo deling and identification of the JPL Phase B
testbed,” in ADPA/AIAA/ASME/SPIE Conf. Active Mat. & Adapt. Struct.,Nov
1991.