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J. Robust Nonlinear Control</a> <a href="/?q=in%3A275583" title="Articles in this Issue">21, No. 5, 501-526 (2011)</a>. </div> <div class="abstract">Summary: A new linear delayed delta operator switched system model is proposed to describe networked control systems with packets dropout and network-induced delays. The plant is a continuous-time system, which is sampled by time-varying random sampling periods. A general delta domain Lyapunov stability criterion is given for delta operator switched systems with time delays. Sufficient conditions for asymptotic stability of closed-loop networked control systems with both packets dropout and network-induced delays are presented in terms of Linear Matrix Inequalities (LMIs). A verification theorem is given to show the solvability of the stabilization conditions by solving a class of finite LMIs. Both the case of data packets arrive instantly and the case of invariant sampling periods in delta operator systems are given, respectively. Three numerical examples are given to illustrate the effectiveness and potential of the developed techniques.</div> <div class="clear"></div> <br> <div class="citations"><div class="clear"><a href="/?q=rf%3A5872928">Cited in <strong>51</strong> Documents</a></div></div> <div class="classification"> <h3>MSC:</h3> <table><tr> <td> <a class="mono" href="/classification/?q=cc%3A93D20" title="MSC2020">93D20</a> </td> <td class="space"> Asymptotic stability in control theory </td> </tr><tr> <td> <a class="mono" href="/classification/?q=cc%3A93D30" title="MSC2020">93D30</a> </td> <td class="space"> Lyapunov and storage functions </td> </tr><tr> <td> <a class="mono" href="/classification/?q=cc%3A93D05" title="MSC2020">93D05</a> </td> <td class="space"> Lyapunov and other classical stabilities (Lagrange, Poisson, \(L^p, l^p\), etc.) in control theory </td> </tr><tr> <td> <a class="mono" href="/classification/?q=cc%3A93C57" title="MSC2020">93C57</a> </td> <td class="space"> Sampled-data control/observation systems </td> </tr><tr> <td> <a class="mono" href="/classification/?q=cc%3A93C30" title="MSC2020">93C30</a> </td> <td class="space"> Control/observation systems governed by functional relations other than differential equations (such as hybrid and switching systems) </td> </tr></table> </div><div class="keywords"> <h3>Keywords:</h3><a href="/?q=ut%3Anetworked+control+systems">networked control systems</a>; <a href="/?q=ut%3Adelta+operator+systems">delta operator systems</a>; <a href="/?q=ut%3Arandom+sampling+periods">random sampling periods</a>; <a href="/?q=ut%3Aswitched+systems">switched systems</a>; <a href="/?q=ut%3Astabilization">stabilization</a></div> <!-- Modal used to show zbmath metadata in different output formats--> <div class="modal fade" id="metadataModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" 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<!-- Button trigger metadata modal --> <a type="button" class="btn btn-default btn-xs pdf" data-toggle="modal" data-target="#metadataModal" data-itemtype="Zbl" data-itemname="Zbl 1214.93093" data-ciurl="/ci/05872928" data-biburl="/bibtex/05872928.bib" data-amsurl="/amsrefs/05872928.bib" data-xmlurl="/xml/05872928.xml" > Cite </a> <a class="btn btn-default btn-xs pdf" data-container="body" type="button" href="/pdf/05872928.pdf" title="Zbl 1214.93093 as PDF">Review PDF</a> </div> <div class="fulltexts"> <span class="fulltext">Full Text:</span> <a class="btn btn-default btn-xs" type="button" href="https://doi.org/10.1002/rnc.1607" aria-label="DOI for “Stabilization of networked control systems with nonuniform random sampling periods”" title="10.1002/rnc.1607">DOI</a> </div> <div class="sfx" style="float: right;"> </div> </div> <div class="references"> <h3>References:</h3> <table><tr> <td>[1]</td> <td class="space">Fujioka H Stability analysis for a class of networked/embedded control systems: a discrete-time approach 4997 5002</td> </tr><tr> <td>[2]</td> <td class="space">Cloosterman, Stability of networked control systems with uncertain time-varying delays, IEEE Transactions on Automatic Control 54 (7) pp 1575– (2009) · <a href="/1367.93459" class="nowrap">Zbl 1367.93459</a> · <a href="https://doi.org/10.1109/TAC.2009.2015543" class="nowrap">doi:10.1109/TAC.2009.2015543</a></td> </tr><tr> <td>[3]</td> <td class="space">Huang, State feedback control of uncertain networked control systems with random time delays, IEEE Transactions on Automatic Control 53 (3) pp 829– (2008) · <a href="/1367.93510" class="nowrap">Zbl 1367.93510</a> · <a href="https://doi.org/10.1109/TAC.2008.919571" class="nowrap">doi:10.1109/TAC.2008.919571</a></td> </tr><tr> <td>[4]</td> <td class="space">Mao, Protocol and fault detection design for nonlinear networked control systems, IEEE Transactions on Circuits and Systems Part II: Express Briefs 56 (3) pp 255– (2009) · <a href="https://doi.org/10.1109/TCSII.2008.2011600" class="nowrap">doi:10.1109/TCSII.2008.2011600</a></td> </tr><tr> <td>[5]</td> <td class="space">Zhu, State feedback controller design of networked control systems with time delay in the plant, International Journal of Innovative Computing, Information and Control 4 (2) pp 283– (2008)</td> </tr><tr> <td>[6]</td> <td class="space">Martin, Optimal tuning of a networked linear controller using a multi-objective genetic algorithm and its application to one complex electromechanical process, International Journal of Innovative Computing, Information and Control 5 (10(B)) pp 3405– (2009)</td> </tr><tr> <td>[7]</td> <td class="space">Mendez-Monroy, Supervisory fuzzy control for networked control systems, ICIC Express Letters 3 (2) pp 233– (2009)</td> </tr><tr> <td>[8]</td> <td class="space">Xia, H2 control for networked control systems with Markovian data losses and delays, ICIC Express Letters 3 (3(A)) pp 271– (2009)</td> </tr><tr> <td>[9]</td> <td class="space">Wu, Design of networked control systems with packet dropouts, IEEE Transactions on Automatic Control 52 (7) pp 1314– (2007) · <a href="/1366.93215" class="nowrap">Zbl 1366.93215</a> · <a href="https://doi.org/10.1109/TAC.2007.900839" class="nowrap">doi:10.1109/TAC.2007.900839</a></td> </tr><tr> <td>[10]</td> <td class="space">Hu, Stability of networked control systems under a multiple-packet transmission policy, IEEE Transactions on Automatic Control 53 (7) pp 1706– (2008) · <a href="/1367.93433" class="nowrap">Zbl 1367.93433</a> · <a href="https://doi.org/10.1109/TAC.2008.929379" class="nowrap">doi:10.1109/TAC.2008.929379</a></td> </tr><tr> <td>[11]</td> <td class="space">Gao, Stabilisation of networked control systems with a new delay characterization, IEEE Transactions on Automatic Control 53 (9) pp 2142– (2008) · <a href="/1367.93696" class="nowrap">Zbl 1367.93696</a> · <a href="https://doi.org/10.1109/TAC.2008.930190" class="nowrap">doi:10.1109/TAC.2008.930190</a></td> </tr><tr> <td>[12]</td> <td class="space">Zhang, Modelling and control of networked control systems with both network-induced delay and packet-dropout, Automatica 44 (12) pp 3206– (2008) · <a href="/1153.93321" class="nowrap">Zbl 1153.93321</a> · <a href="https://doi.org/10.1016/j.automatica.2008.09.001" class="nowrap">doi:10.1016/j.automatica.2008.09.001</a></td> </tr><tr> <td>[13]</td> <td class="space">Liu, Design and stability criteria of networked predictive control systems with random network delay in the feedback channel, IEEE Transactions on Systems, Man, and Cybernetics 37 (2) pp 173– (2007) · <a href="https://doi.org/10.1109/TSMCC.2006.886987" class="nowrap">doi:10.1109/TSMCC.2006.886987</a></td> </tr><tr> <td>[14]</td> <td class="space">Liu, Networked predictive control of systems with random network delays in both forward and feedback channels, IEEE Transactions on Industrial Electronics 54 (3) pp 1282– (2007) · <a href="https://doi.org/10.1109/TIE.2007.893073" class="nowrap">doi:10.1109/TIE.2007.893073</a></td> </tr><tr> <td>[15]</td> <td class="space">Peng, Sampling period scheduling of networked control systems with multiple-control loops, Mathematics and Computers in Simulation 79 (5) pp 1502– (2009) · <a href="/1157.93306" class="nowrap">Zbl 1157.93306</a> · <a href="https://doi.org/10.1016/j.matcom.2008.06.004" class="nowrap">doi:10.1016/j.matcom.2008.06.004</a></td> </tr><tr> <td>[16]</td> <td class="space">Xiong, Stabilisation of networked control systems with a logic ZOH, IEEE Transactions on Automatic Control 54 (2) pp 358– (2009) · <a href="/1367.93546" class="nowrap">Zbl 1367.93546</a> · <a href="https://doi.org/10.1109/TAC.2008.2008319" class="nowrap">doi:10.1109/TAC.2008.2008319</a></td> </tr><tr> <td>[17]</td> <td class="space">Hu, Sampled-data control of networked linear control systems, Automatica 43 (5) pp 903– (2007) · <a href="/1117.93044" class="nowrap">Zbl 1117.93044</a> · <a href="https://doi.org/10.1016/j.automatica.2006.11.015" class="nowrap">doi:10.1016/j.automatica.2006.11.015</a></td> </tr><tr> <td>[18]</td> <td class="space">Gao, Stabilization of nonlinear systems under variable sampling: a fuzzy control approach, IEEE Transactions on Fuzzy System 15 (5) pp 972– (2007) · <a href="https://doi.org/10.1109/TFUZZ.2006.890660" class="nowrap">doi:10.1109/TFUZZ.2006.890660</a></td> </tr><tr> <td>[19]</td> <td class="space">Margolis, Nonuniform sampling of periodic bandlimited signals, IEEE Transactions on Signal Processing 56 (7) pp 2728– (2008) · <a href="/1390.94293" class="nowrap">Zbl 1390.94293</a> · <a href="https://doi.org/10.1109/TSP.2008.917416" class="nowrap">doi:10.1109/TSP.2008.917416</a></td> </tr><tr> <td>[20]</td> <td class="space">Suh, Stability and stabilization of nonuniform sampling system, Automatica 44 (12) pp 3222– (2008) · <a href="/1153.93450" class="nowrap">Zbl 1153.93450</a> · <a href="https://doi.org/10.1016/j.automatica.2008.10.002" class="nowrap">doi:10.1016/j.automatica.2008.10.002</a></td> </tr><tr> <td>[21]</td> <td class="space">Yang, Networked control system: a brief survey, IEE Proceedings-Control Theory and Applications 153 (4) pp 403– (2006) · <a href="https://doi.org/10.1049/ip-cta:20050178" class="nowrap">doi:10.1049/ip-cta:20050178</a></td> </tr><tr> <td>[22]</td> <td class="space">Sala, Computer control under time-varying sampling period: an LMI gridding approach, Automatica 41 (12) pp 2077– (2005) · <a href="/1100.93511" class="nowrap">Zbl 1100.93511</a> · <a href="https://doi.org/10.1016/j.automatica.2005.05.017" class="nowrap">doi:10.1016/j.automatica.2005.05.017</a></td> </tr><tr> <td>[23]</td> <td class="space">Wang, H controller design for networked control systems via active-varying sampling period method, Acta Automatica Sinica 34 (7) pp 814– (2008) · <a href="https://doi.org/10.3724/SP.J.1004.2008.00814" class="nowrap">doi:10.3724/SP.J.1004.2008.00814</a></td> </tr><tr> <td>[24]</td> <td class="space">Gao, Robust sampled-data H control with stochastic sampling, Automatica 45 (7) pp 1729– (2009) · <a href="/1184.93039" class="nowrap">Zbl 1184.93039</a> · <a href="https://doi.org/10.1016/j.automatica.2009.03.004" class="nowrap">doi:10.1016/j.automatica.2009.03.004</a></td> </tr><tr> <td>[25]</td> <td class="space">Goodwin, Rapprochement between continuous and discrete model reference adaptive control, Automatica 22 (2) pp 199– (1986) · <a href="/0614.93039" class="nowrap">Zbl 0614.93039</a> · <a href="https://doi.org/10.1016/0005-1098(86)90081-6" class="nowrap">doi:10.1016/0005-1098(86)90081-6</a></td> </tr><tr> <td>[26]</td> <td class="space">Middleton, Improved finite word length characteristics in digital control using delta operators, IEEE Transactions on Automatic Control 31 (11) pp 1015– (1986) · <a href="/0608.93053" class="nowrap">Zbl 0608.93053</a> · <a href="https://doi.org/10.1109/TAC.1986.1104162" class="nowrap">doi:10.1109/TAC.1986.1104162</a></td> </tr><tr> <td>[27]</td> <td class="space">Neuman, Transformations between delta and forward shift operator transfer function models, IEEE Transactions on Systems, Man and Cybernetics 23 (1) pp 295– (1993) · <a href="https://doi.org/10.1109/21.214790" class="nowrap">doi:10.1109/21.214790</a></td> </tr><tr> <td>[28]</td> <td class="space">Neuman, Properties of the delta operator model of dynamic physical systems, IEEE Transactions on Systems, Man and Cybernetics 23 (1) pp 296– (1993) · <a href="/0775.93172" class="nowrap">Zbl 0775.93172</a> · <a href="https://doi.org/10.1109/21.214791" class="nowrap">doi:10.1109/21.214791</a></td> </tr><tr> <td>[29]</td> <td class="space">Fan, On delta-operator Schur-Cohn zero-location tests for fast sampling, IEEE Transactions on Signal Processing 46 (7) pp 1851– (1998) · <a href="/0978.93021" class="nowrap">Zbl 0978.93021</a> · <a href="https://doi.org/10.1109/78.700953" class="nowrap">doi:10.1109/78.700953</a></td> </tr><tr> <td>[30]</td> <td class="space">Zhong, On distributed delay in linear control laws-part II: rational implementations inspired from the {\(\delta\)}-operator, IEEE Transaction on Automatic Control 50 (5) pp 729– (2005) · <a href="/1365.93228" class="nowrap">Zbl 1365.93228</a> · <a href="https://doi.org/10.1109/TAC.2005.847043" class="nowrap">doi:10.1109/TAC.2005.847043</a></td> </tr><tr> <td>[31]</td> <td class="space">Soh, Robust stability of discrete-time systems using delta operators, IEEE Transactions on Automatic Control 36 (3) pp 377– (1991) · <a href="/0737.93062" class="nowrap">Zbl 0737.93062</a> · <a href="https://doi.org/10.1109/9.73576" class="nowrap">doi:10.1109/9.73576</a></td> </tr><tr> <td>[32]</td> <td class="space">Qiu, Robust stabilisation for a class of discrete-time systems with time-varying delays via delta operators, IET Control Theory and Applications 2 (1) pp 87– (2008) · <a href="https://doi.org/10.1049/iet-cta:20070070" class="nowrap">doi:10.1049/iet-cta:20070070</a></td> </tr><tr> <td>[33]</td> <td class="space">Xia, Networked data fusion with packet losses and variable delays, IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics 39 (5) pp 1107– (2009) · <a href="https://doi.org/10.1109/TSMCB.2009.2012437" class="nowrap">doi:10.1109/TSMCB.2009.2012437</a></td> </tr><tr> <td>[34]</td> <td class="space">Yue, Network-based robust H control of systems with uncertainty, Automatica 41 (6) pp 999– (2005) · <a href="/1091.93007" class="nowrap">Zbl 1091.93007</a> · <a href="https://doi.org/10.1016/j.automatica.2004.12.011" class="nowrap">doi:10.1016/j.automatica.2004.12.011</a></td> </tr><tr> <td>[35]</td> <td class="space">Hale, Introduction to Functional Differential Equations (1993) · <a href="/0787.34002" class="nowrap">Zbl 0787.34002</a> · <a href="https://doi.org/10.1007/978-1-4612-4342-7" class="nowrap">doi:10.1007/978-1-4612-4342-7</a></td> </tr><tr> <td>[36]</td> <td class="space">Oishi Y Fujioka H Stability analysis of aperiodic sampled-data control systems: an approach using robust linear matrix inequalities 2173 2178 · <a href="/1205.93100" class="nowrap">Zbl 1205.93100</a></td> </tr><tr> <td>[37]</td> <td class="space">Oishi Y Fujioka H Stability and stabilization of aperiodic sampled-data control systems: an approach using robust linear matrix inequalities 8142 8147 · <a href="/1205.93100" class="nowrap">Zbl 1205.93100</a></td> </tr><tr> <td>[38]</td> <td class="space">Ploplys, Closed-loop control over wireless networks, IEEE Control Systems Magazine 24 (3) pp 58– (2004) · <a href="https://doi.org/10.1109/MCS.2004.1299533" class="nowrap">doi:10.1109/MCS.2004.1299533</a></td> </tr><tr> <td>[39]</td> <td class="space">Bugeja M Non-linear swing-up and stabilizing control of an inverted pendulum system 2003 437 441</td> </tr></table> <div 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