Research supported by
 NSF Research Initiation Award ECS9110636.
 AFOSR DEPSCoR Award F496209410415.
 AFOSR ASSERT Award F496209510354.
 AFOSR Research Grant F4962095C0063.
 ARO DEPSCoR Award DAAH049610193.
 AFOSR Research Grant F496209710064.
 AFOSR DEPSCoR Award F496209910179.
Copyrights to the many of the following papers are held by the
publishers. The attached PostScript files are preprints. It is
understood that all persons copying this information will adhere to
the terms and constraints invoked by each author's copyright. These
works may not be reposted without the explicit permission of the
copyright holder.

J. Chen and G. Gu, ``Worstcase asymptotic properties
of Hinfinity identification,''
IEEE Trans. Circuits and Syst., vol. 49, pp. 437446, 2002.

G. Gu and J. Chen, ``A nearly interpolatory algorithm
for Hinfinity identification
with mixed time and frequency response data,''
IEEE Trans. Circuits and Syst., vol. 46, pp. 464469, Mar. 2001.

Jie Chen and Guoxiang Gu,
ControlOriented System Identification  An H infinity Approach,
published by John Wiley & Sons, Inc., 2000.
Lecture notes and Matlab programs for the book available.

G. Gu, ``Modeling of normalized coprime factors with numetric uncertainty,''
IEEE Trans. Automat. Contr., vol. 44, 14981511, 1999.

D. Xu, Z. Ren, G. Gu, and J. Chen, ``LFT uncertain model
validation with time and frequencydomain measurements,''
IEEE Trans. Automat. Contr., vol. 44, pp. 14351441, July 1999.

P.P. Khargonekar, G. Gu, and J. Friedman,
``Identification in Hinfinity: Theory
and Applications,'' in Identification, Adaptation, Learning,
S. Bittanti et al. Eds.,
NATO ASI Series F: Computer and Systems Science,
vol. 153, pp. 266288, SpringerVerlag, 1996.

G. Gu and P.P. Khargonekar, ``Identification in frequency domain,''
in Lecture Notes in Control and
Information Sciences, vol. 202, Francis and A. R. Tannenbaum Eds.,
pp. 99113, SpringerVerlag, London, UK, 1995.

G. Gu, ``Identification in Hinfinity using timedomain
measurement data,'' in Modeling Uncertainties in Control Systems,
R. Smith and M. Dahleh, Eds., SpringerVerlag, 1994.

J. Chen, G. Gu and C.N. Nett, ``Worst case identification
of continuoustime systems via interpolation,''
Automatica, vol. 30, pp. 18251837, Dec. 1994.

G. Gu, ``Suboptimal algorithms for worst case identification
and model validation,'' IEEE Trans.
Automat. Contr., vol. 39, pp. 16571661, Aug. 1994.

H. Akcay, G. Gu and P.P. Khargonekar, ``Worst case
identification with nonuniformly spaced frequency response
measurements,'' Int. J. on Robust and Nonlinear Contr.,
vol. 4, pp. 613629, July 1994.

H. Akcay, G. Gu and P.P. Khargonekar, ``System identification
for continuoustime systems,'' IEEE
Trans. Automat. Contr., vol. vol. 38, pp. 289294, Feb. 1993.

G. Gu, P.P. Khargonekar and Y. Li, ``Robust convergence for
system identification in Hinfinity,''
Syst. and Contr. Lett., vol. 18, pp. 253263,
April 1992.

G. Gu and P.P. Khargonekar, ``A class of algorithms for
system identification in Hinfinity,'' Automatica,
vol. 28, pp. 299312, March 1992.

X. Chen, A. Tahmasebi, and G. Gu, ``Local
robustness of stabilization with applications to
jet engine control,'' in Bifurcation Control: Theory and
Applications, G. Chen {\it et al}
Eds., pp. 275300, SpringerVerlag, 2003.

C. Belta, G. Gu, A. Sparks, and S. Banda, ``Rotating
stall control for axial flow compressors,''
Automatica, pp. 921931, 2001.

X. Chen, A.G. Sparks, K. Zhou, and G. Gu, ``Local
robustness of stationary bifurcation control,''
Latin American Applied Research, pp. 163170, 2001.

G. Gu and A. Sparks, ``Bifurcation stabilization with
applications in jet engine control,'' in Controlling Bifurcations
and Chaos in Engineering Systems, G. Chen Eds., pp.
347368, CRC Press, 1999.

G. Gu, S. Banda, and A. Sparks, ``An overview of rotating
stall and surge control for axial flow compressors,''
IEEE Trans. Contr. Syst. Tech., vol. 7, pp. 639647, 1999.

G. Gu, A. Sparks and C. Belta, ``Stability analysis for rotating
stall dynamics in axial flow compressors,'' Circuits,
Systems, and Signal Processing, vol. 18, pp. 331350, 1999.

G. Gu, X. Chen, A. Sparks, and S. Banda,
``Bifurcation stabilization with local output feedback,''
SIAM J. Contr. Optimiz., vol. 37, pp. 934956, March 1999.

W. Kang, G. Gu, A. Sparks, and
S. Banda, ``Bifurcation test functions and surge control
for axial flow compressors,''
Automatica, vol. 35, pp. 229239, 1999.

G. Gu, A. Sparks, and S. Banda, ``Bifurcation based nonlinear
feedback control for rotating stall in axial flow compressors,''
Int. J. Contr., vol. 6, pp. 12411257, Dec. 1997.

G. Gu, X.R. Cao, and H. Badr, ``Generalized LQR control and
Kalman filtering with relations to computations of innerouter and
spectral factorizations,'' IEEE Trans. Automat. Contr., vol. 51,
pp. 595605, April 2006.

G. Gu, ``All optimal Hankelnorm approximations and their
Linfinity error bounds in discretetime,'' Int.
J. Contr., vol. 78, pp. 408423, April 2005.

G. Gu, ``Innerouter factorization for strictly proper
transfer matrices,'' IEEE Trans. Automat. Contr.,
vol. 47, pp. 19151919, 2002.

G. Gu, J. Chen, and E.B. Lee, ``Parametric Hinfinity
loopshaping and weighted mixed sensitivity minimization,''
IEEE Trans. Automat. Contr., vol. 44, pp. 846851, Aug. 1999.

G. Gu and L. Qiu, ``Connection of multiplicative or relative
perturbation in coprime factors and gap metric uncertainty,''
Automatica, pp. 603607, May 1998.

J. Chen, G. Gu, C.N. Nett and D. Xiong, ``A
canonical structure for constrained optimal control
problems,'' Int. Journal on Robust and Nonlinear Control,
vol. 6, pp. 727741, June 1996.

G. Gu, ``Model reduction with relative/multiplicative
error bounds and relations to controller reduction,''
IEEE Trans. Automat. Contr., vol. AC40, pp. 14781485, Aug.

G. Gu and P. Misra, ``Disturbance attenuation and Hinfinity
optimization using output feedback,'' AIAA Journal
on Guidance, Control and Dynamics, vol. 17,
pp. 145152, Jan.Feb. 1994.

K. Zhou and G. Gu, ``Robust stability of multivariable
systems with both real parametric and norm bounded uncertainties,''
IEEE Trans. Automat. Contr., vol. 37,
15331537, Oct. 1992.

G. Gu, ``Stabilizability condition of uncertain systems via output
feedback control,'' IEEE Trans. Automat. Contr., vol. AC35,
pp. 915917, Aug. 1990.

G. Gu, ``On the existence of linear optimal control with output
feedback,'' SIAM J. Contr. and Optimiz., vol. 28, pp.
711719, May 1990.

F.N. Bailey, D. Panzer and G. Gu, ``Two algorithms for
frequency domain design
of robust control systems,'' Int. J. Contr., vol. 48, no. 5,
pp. 17871806, Nov. 1988.

L. Li and G. Gu, ``Design of optimal zeroforcing
precoder for MIMO channels
via optimal full information control,''
IEEE Trans. Signal Processing, vol. 53,
pp. 32383246, Aug. 2005.

G. Gu and E. Badran, ``Optimal design for channel
equalization via filterbank approach'',
IEEE Trans. Signal Processing, vol. 52, pp. 536545,
Feb. 2004.

G. Gu, and L. Li, ``Worstcase design for optimal
channel equalization in filterbank transceivers,''
IEEE Trans. Signal Processing, vol. 51,
pp. 24242435, Sept. 2003.

J. Huang, G. Gu, and B.A.
Shenoi, ``Design of multichannel QMF banks via
frequency domain optimizations,'' IEEE
Trans. Circuits and Syst., Part II, vol. 46, pp. 599607, May 1999.

J. Huang and G. Gu,
``A direct approach to the design of QMF banks
via frequency domain optimizations,'' IEEE Trans.
Signal Processing, vol. 46, pp. 21312138, Aug. 1998.

G. Gu and J. Huang, ``Convergence results on the
design of QMF banks,'' IEEE Trans.
Signal Processing,
vol. 46, pp. 758761, March 1998.

G. Gu, P.P. Khargonekar, E.B. Lee and P. Misra,
``Finitedimensional
approximations of unstable infinitedimensional systems,''
SIAM J. Contr. and Optimiz., vol.30, pp. 704716, May 1992.

N.E. Wu and G. Gu, ``Discrete Fourier transform and Hinfinity
approximation,'' IEEE Trans. Automat. Contr., vol. AC35,
pp. 10441046, Sept. 1990.

G. Gu, P.P. Khargonekar and E. B. Lee,
``Approximation of infinite
dimensional systems,'' IEEE Trans. Automat. Contr., vol. AC34,
pp. 610618, June 1989.

J.L. Aravena and G. Gu,
``Weighted least mean square design of 2D
FIR digital filters: the general case,''
IEEE Trans. Signal Processing, vol. 44, pp. 25682578, Oct. 1996.

G. Gu and J.L. Aravena, ``Weighted
least mean square design of 2D FIR filters,''
IEEE Trans. Signal Processing, vol. 42, pp. 31783187, Nov. 1994.

K. Zhou, J.L. Aravena, G. Gu, and D. Xiong, ``Twodimensional
system model reduction by quasibalanced
truncation and singular perturbation,'' IEEE Trans. Circuit
and Syst., vol. 41, pp. 593602, Sept. 1994.

G. Gu, J.L. Aravena and K. Zhou, ``On minimal
realization of 2D systems,'' IEEE Trans.
Circuits and Syst., vol. CAS38, pp. 12281233, Oct. 1991.

G. Gu, P. Misra and B.A. Shenoi, ``A methodology for the synthesis
of twodimensional analog filters with linear phase,''
J. Circuits, Systems and Computers, vol. 1, pp. 7592,
March 1991.

G. Gu and B.A. Shenoi, ``A novel approach to the synthesis of
recursive digital filters with linear phase,'' IEEE
Trans. Circuits and Syst., vol. CAS38, pp. 602612, June 1991.

G. Gu, B.A. Shenoi and C. Zhang, ``Synthesis of 2D
linear phase digital
filters,'' IEEE Trans. Circuits and Syst., vol.
CAS37, pp. 14991508, Dec. 1990.

J. Chen, G. Gu and C.N. Nett, ``A new method for
computing delay margins for stability of linear delay systems,''
Syst. and Contr. Lett., vol. 26, pp. 107117, Jan. 1995.

G. Gu and E.B. Lee, ``A numerical algorithm for
stability testing of 2D recursive digital filters,''
IEEE Trans. Circuits and Syst.,
vol. CAS37, pp. 135138, Jan. 1990.

G. Gu and E.B. Lee, ``Stability testing of time delay systems,''
Automatica, vol. 25, pp. 777780, Sept. 1989.
Guoxiang Gu
F.Hugh Coughlin/CELCO Distinguished Professor
Department of Electrical and Computer Engineering
Louisiana State University
Baton Rouge, LA 708035901
Phone: (225) 5785534
Office: (225) 5785241
Fax: (225) 5785200
Email: ggu@ee.lsu.edu