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 Publications  Selected works with PDFs
Selected works with PDFs
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Y. Zhang, L. Qiu, “On the angular metrics between linear subspaces”, Linear Algebra and its Applications, vol. 421, no. 1, pp. 163-170, 2007. >PDF
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W. Su, L. Qiu and J. Chen, “Fundamental limit of discrete-time systems in tracking multi-tone sinusoidal signals”, Automatica, vol. 43, no. 1, pp. 15-30, 2007. >PDF |
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L. Qiu, Y. Zhang, and C.K. Li, “Unitarily invariant metrics on the Grassmann space”, SIAM Journal on Matrix Analysis and Applications, vol. 27, pp. 507-531, 2006. >PDF |
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L. Chai and L. Qiu, “Multirate periodic systems and constrained analytical function interpolation problems”, SIAM Journal on Control and Optimization, vol. 43, pp. 1972--1986, 2005. >PDF |
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W. C. Gan and L. Qiu, “Torque and velocity ripple elimination of AC permanent magnet motor control systems using the internal model principle”, IEEE/ASME Trans. on Mechatronics, vol. 9, pp. 436--447, 2004. >PDF |
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L. Qiu, “What can Routh table offer in addition to stability”, Journal of Control Theory and Applications, vol. 1, pp. 9--16, 2003. >PDF |
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W. C. Gan, N. C. Cheung and L. Qiu, “Position control of linear switched reluctance motors for high precision applications”, IEEE Trans. on Industry Applications, vol. 39, pp. 1350--1362, 2003. >PDF |
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W. Su, L. Qiu and J. Chen, “Fundamental performance limitations in tracking sinusoidal signals”, IEEE Trans. on Automatic Control, vol. 48, pp. 1371-1380, 2003. >PDF |
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W. C. Gan and L. Qiu, “Design and analysis of a plug-in robust compensator: an application to indirect field-oriented control induction machine drives”, IEEE Trans. on Industrial Electronics, vol. 50, pp. 272-282, 2003. >PDF |
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Z. Ding and L. Qiu, “Blind MIMO channel identification from second order statistics using rank deficient channel convolution matrix”, IEEE Trans. on Signal Processing, vol. 51, pp. 535-544, 2003. >PDF |
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O. Toker, J. Chen and L. Qiu, “Tracking performance limitations in LTI multivariable discrete-time systems”, IEEE Trans. Circuits and Systems, Part I: Fundamental Theory and Applications, vol. 49, pp. 657-670, 2002. >PDF |
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L. Qiu and T. Chen, “Multirate sampled-data systems: all H¥ suboptimal controllers and the minimum entropy controller”, IEEE Trans. on Automatic Control, vol. 44, pp. 537-550, 1999. >PDF |
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T. Chen, L. Qiu, and E. Bai, “General multirate building blocks and their application in nonuniform filter banks”, IEEE Trans. on Circuits and Systems, Part II: Analog and Digital Signal Processing, vol. 45, pp.948-958, 1998. >PDF |
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G. Gu and L. Qiu, “Connection of multiplicative or relative perturbation in coprime factors and gap metric uncertainty”, Automatica, Vol. 34, pp. 603--607, 1998. >PDF |
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B. Bernhardsson, A. Rantzer, and L. Qiu, “Real perturbation values and quadratic forms in a complex vector space”, Linear Algebra and its Applications, Vol. 270, pp. 131-154, 1997. >PDF |
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E. W. Bai, L. Qiu, and R. Tempo, “Unfalsified weigthed least squares estimates in set-membership identification”, IEEE Trans. on Circuits and Systems, Part I: Fundamental Theory and Applications, Vol. 45, pp. 41-49, 1998. >PDF |
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L. Qiu, B. Bernhardsson, A. Rantzer, E.J. Davison, P.M. Young, and J.C. Doyle, “A formula for computation of the real stability radius”, Automatica, vol. 31, pp. 879-890, 1995. >PDF |
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T. Chen, and L. Qiu, “H¥ design of general multirate sampled-data control systems”, Automatica, vol. 30, pp. 1139-1151, 1994. (PDF Missing) |
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L. Qiu, and E.J. Davison, “Performance limitations of non-minimum phase systems in the servomechanism problem”, Automatica, vol. 29, pp. 337-349, 1993. (PDF Missing) |
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L. Qiu, and E.J. Davison, “Feedback stability under simultaneous gap metric uncertainties in plant and controller”, Systems & Control Letters, vol. 18, pp. 9-22, 1992. (PDF Missing) |
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L. Qiu, and E.J. Davison, “Pointwise gap metrics on transfer matrices”, IEEE Trans. on Automatic Control, vol. 37, pp. 741-758, 1992. >PDF |
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L. Qiu, and E.J. Davison, “A unified approach for the stability robustness of polynomials in a convex set”, Automatica, vol. 28, pp. 945-959, 1992. (PDF Missing) |
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