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**A PUBLICATION OF THE IEEE CONTROl SYSTEMS**

**APRIL 2006** **VOLUME 51** **NUMBER 4** **IETAA9** **(ISSN 0018-9286)**

Scanningthelssue... 545

PAPERS

Reachability Analysis of Discrete-Time Systems Witt Disturbances . . . .
*S.v.Rakovié,E.CKerrigan,D.Q.Mayne,and1.Lygeros*
*Dynamic Active Contours for Visual Tracking. . . .M. Niethammer, A. Tannenbaum, and S. Angenent*
Optimal Power Allocation for a Time-Varying Wireless Channel Under Heavy-Traffic Approximation. . . .

*w.Wu,A.Arapostathis,andS.Shakkottai*
Generalized LQR ContraI and Kalman Filtering Witt Relations to Computations of Inner-Outer and Spectral

Factorizations *G. Gu,x.-R.* *Cao,andHBadr*

Rate-Based Versos Queue-Based Models of Congestion Contrai . . . .. ... *S. Deb and R. Srikant*
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TECHNICAL NOTES AND CORRESPONDENCE

*Stability Theory of Hybrid Dynamical Systems Witt Time Delay. . . .X. Liu and J. Shen*
Global Robust Output Regulation of Output Feedback Systems With Unknown High-Frequency Gain Sign . . . .

*L.LiuandJ.Huang*
An Errar Bound for Sensor Fusion With Application to Doppler Frequency Based Emittèr Location. . . .

*N.E.WuandM.L.Fowler*
*Robustness of Policies in Constrained Markov Decision Processes . . . .A.Zadorojniy and A. Shwartz*
On the Georgiou-Lindquist Approach to Constrained Kullback-Leibler Approximation of Spectral Densities . . . .

*M.PavonandA.Ferrante*
Operator Based Nonlinear Feedback Contrai Design Using Robust Right Coprime Factorization. . . .

*M.Deng,A.lnoue,andK.Ishikawa*
*Wiener-Hammerstein Modeling of Nonlinear Effects in Bilinear Systems. . . A. H Tan*
*Adaptive Synchronization of an Uncertain Complex Dynamical Network . . . 1. Zhou, J. Lu, and J. Lü*
A Topological Result on Strong Stabilization Problem . . . .^{;} *. . . . M.-G. Yoon and H Kimura*
*Conjugale Convex LyapunovFunctions for Dual Linear DifferentiaI Inclusions. . . R. Goebel, A. R. Teel, T. Hu, and Z. Lin*

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*(Çontents Continued on Back Cover)*

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*(C~~i~~~~,(PJ5)itinued**from* *Front Cover)*

Combined Stabilizing Strategies for Switched Linear Systems. *. . . , , . . . , , , , . . . , . . . Z. Sun*
**Sufficient LMI Conditions for H**^{00} Output Feedback Stabilization of Linear Discrete-Time Systems, . . . , . . . .

...,..."" , ".." ,', , *"..K,H,Lee,l.H.Lee,andWH.Kwon*

*H*^{00} *Controi of Linear Uncertain Time-Delay Systems-A Projection Approach, . . V Suplin, E. Fridman, and U. Shaked*
*Optimal Linear Estimation and Data Fusion, , . . . , , . , . . . , , , . . , , . , , . . . .R. 1. Elliott and l. van der Hoek*
Minimal Muitirealization **of MIMO Linear Systems.** *. , . , . . . . , , , . . S. W Su, B, D. 0, Anderson,* *and T. S. Brinsmead*
*Minimum Entropy Filtering for Muitivariate Stochastic Systems With Non-Gaussian Noises, . . . L. Guo and H. Wang*
*A Decomposition Approach to Distributed Controi of Spatially Invariant Systems. . . .J. S. Shamma and G. Arslan*
*Heuristic Methods for Delay Constrained Least Cost Routing Using k-Shortest-Paths. . . Z. lia and P. Varaiya*
*Contraction Analysis of Time-Delayed Communications and Group Cooperation. . . .W Wang and J.-J. E. Slotine*
Comments on "Risk-Sensitive Adaptive Trackers for Strict-Feedback Systems With Output Measurements" . . . .

*L.DaiandS.Shi*

Authors'Reply : ^{'} *G.ArslanandT.Ba~ar*

Comments on "Asymptotic State Tracking in a Class of Nonlinear Systems Via Learning-Based Inversion". . . . .
*1.-X.Xuand1.Xu*

Authors' Reply *Y.-H.KimandI.-J.Ha*

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BOOK REVIEWS

Mathematical Systems Theory I-D. Hinrichsen and A. J. Pritchard. *. . . Reviewed by K. A. Grasse* 722