Conference Publications

(1) Nelson Cisneros,  Héctor Ramírez, A.J. Rojas,  “Port Hamiltonian modelling and control of a micro-channel”.  2019 Australian and New Zealand Control Conference, Auckland, NZ, November 2019.

(2) R.M. Alarcón, O.A. Briones, N. Cisneros, M. Suárez and A.J. Rojas. “Micro-velocimeter for an open channel: a simple, robust and economical alternative”. CHILECON 2019, Valparaíso, Chile, October 2019.

(3) A.J. Rojas, H. Garcés,  “SNR Stabilization over Fading Channels with Bandwidth Limitation”.  2019 American Control Conference, Philadelphia, USA, July 2019.

(4) H. Garcés, J.M. Palma,  A.J. Rojas and V. Valdebenito, “Model Analysis of Heat Transfer by Hammerstein systems and optical instrumentation”. 12th IFAC Symposium on Dynamics and Control of Process Systems, including Biosystems, Florianópolis, Brazil, April 2019.

(5) M. Derpich and A.J. Rojas, On Avoiding the Effect of Non-Minimum Phase Zeros over the Signal-to-Noise Ratio Limitation,  57th IEEE Conference on Decision and Control, Miami, FL, USA, December 2018. DOI: 10.1109/LCSYS.2018.2849615

(6) R.M. Alarcón, O.A. Briones, O.E. Link and A.J. Rojas. “Reproduction of hydrographs in a micro-canal, through the design of a decentralized PPI control for a TITO model”. IEEE ICA/ACCA 2018, Concepción, Chile, October 2018.

(7) J.M. Palma, H. Garcés, A.J. Rojas., C.F. Morais  and R.C.F.L. Oliveira. “H-infinity output-feedback control design for combustion systems using optical instrumentation”. 9th IFAC Symposium on Robust Control Design and 2nd IFAC Workshop on Linear Parameter Varying Systems, Florianópolis, Brasil, September 2018.

(8) A.J. Rojas., H. Haimovich and D. Sbarbaro. “On the Effect of Sampled-Data Hold and Discretization in Signal-to-Noise Ratio Constrained Control”.  2018 American Control Conference, Milwaukee, USA, June 2018, pp. 5712-5717. DOI: 10.23919/ACC.2018.8431714

(9) H.O. Garcés and A.J. Rojas. “Optimal Controllers for Combustion Processes: a Preliminary Approach”. 6th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control LHMNC 2018, Valparaíso, Chile, May 2018, pp. 56–61. DOI: 10.1016/j.ifacol.2018.06.015

(10) R.M. Alarcón, O.A. Briones, O.E. Link and A.J. Rojas. “Predictive PI strategy for hydrographs control in a experimental microscale flume”. 3rd IFAC Conference on Advances in Proportional-Integral-Derivative Control, Ghent, Belgium, May 2018, pp. 19-24. DOI: 10.1016/j.ifacol.2018.06.011

(11) H.O. Garcés, A.J. Rojas. and D. Sbarbaro. “Stabilization and Tracking for P/PI
Combustion Control over a Communication Channel”. 3rd IFAC Conference on Advances in Proportional-Integral-Derivative Control, Ghent, Belgium, May 2018, pp. 438-443. DOI: 10.1016/j.ifacol.2018.06.134

(12) H.O. Garcés, A.J. Rojas. “Identification and Control of Total Radiation in a Combustion Process Based on Hammerstein Systems”.  CHILECON 2017, Pucón, Chile, October 2017. pp-1-6. DOI: 10.1109/CHILECON.2017.8229619

(13) H.O. Garcés, J. Abreu, P. Gómez, C.A. Carrasco, L.E. Arias, A.J. Rojas,  A. Fuentes. “Energy Efficiency Monitoring in a Coal Boiler Based on Optical Variables and Artificial Intelligence”, 20th IFAC World Congress, Toulouse, France, July 2017, pp. 13904-13909. DOI: 10.1016/j.ifacol.2017.08.2209

(14) A.J. Rojas, H.O. Garcés. “Signal-to-Noise Ratio Requirements for
Discrete-time PID Controllers”, 20th IFAC World Congress, Toulouse, France, July 2017, pp. 2567-2572. DOI: 10.1016/j.ifacol.2017.08.094

(15) A.J. Rojas. “Two-Degree of Freedom Controller Design for Signal-to-Noise Ratio Reduction”, 2017 American Control Conference, Seattle, USA, May 2017, pp. 370–375. DOI: 10.23919/ACC.2017.7962981

(16) H.O. Garcés, A.J. Rojas, L.E. Arias and C.A. Carrasco. “Selection of nonlinear structures for total radiation modeling”.  IEEE ICA/ACCA 2016, Curicó, Chile, October 2016. DOI: 10.1109/ICA-ACCA.2016.7778422

(17) A.J. Rojas. “Experiencia de clases invertidas en curso de modelación de procesos”. XXIX Congreso Chileno de Educación en Ingeniería, Pucón, Chile, October 2016.

(18) A.J. Vallarella, A.J. Rojas and H. Haimovich. “Irrigation channel stability under arbitrary feed-forward link failures”.   2016 IEEE Multi-Conference on Systems and Control, Buenos Aires, Argentina, September 2016, pp.1356-1361. DOI: 10.1109/CCA.2016.7587995

(19) H.O. Garcés, A.J. Rojas, L.E. Arias and C.A. Carrasco. “Combustion control and optimization: current methods and a novel proposition using optical variables”.  CHILECON 2015, Santiago, Chile, October 2015. pp-1-6.

(20) A.J. Rojas. “Signal-to-Noise Ratio Requirements Subject to a PID Controller Design”.  2015 IEEE Multi-Conference on Systems and Control, Sydney, Australia, September 2015, pp.1755-1760. DOI: 10.1109/CCA.2015.7320863

(21) A.J. Rojas and F.J. Vargas. “Stabilisation Over Signal-to-Noise Ratio Constrained Channels: Robust Analysis for the Discrete-Time Case”.  2015 IEEE Multi-Conference on Systems and Control, Sydney, Australia, September 2015, pp.1761-1766. DOI: 10.1109/CCA.2015.7320864

(22) L. Nguyen, A.J. Rojas, D. Genon-Catalot, A. Lagreze and L. Lefevre. “Signal-to-Noise ratio for irrigation canal networked control system”.  2015 IEEE Multi-Conference on Systems and Control, Sydney, Australia, September 2015, pp.1637-1643. DOI: 10.1109/CCA.2015.7320844

(23) H.O. Garcés, A.J. Rojas, L.E. Arias and C.A. Carrasco. “On the use of flame analysis and optical variables for an optimized operation in ladle furnace preheating process”.  2015 IEEE Multi-Conference on Systems and Control, Sydney, Australia, September 2015, pp.269-274. DOI: 10.1109/CCA.2015.7320640

(24) A.J. Rojas. “On the Infi mal Signal-to-Noise Ratio Limitations for Measurable Disturbance Rejection”, 2015 American Control Conference, Chicago, USA, July 2015, pp. 2211–2217. DOI: 10.1109/ACC.2015.7171061

(25) H.O. Garces, O.F. Farias, L.E. Arias, A.J. Rojas. “Optimización de la eficiencia operacional en procesos de combustión mediante sensores ópticos”. VIII Congreso Latinoamericano de Ingeniería Mecánica, Cuenca, Ecuador, November 2014, pp. 1-6.

(26) H.O. Garces, L.E. Arias, A.J. Rojas. “Process control and optimization using non-intrusive optical devices”. 4th International Congress on Automation in Mining, Viña del Mar, Chile, November 2014, pp. 1-10.

(27) L. Ferres, R. Medina, A.J. Rojas, J. Tapia. “Experiencias en aprendizaje activo en la Facultad de Ingeniería de la Universidad de Concepción”. XXVII Congreso Chileno de Educación en Ingeniería, Concepción, Chile, October 2014, pp. 1-8.

(28) D.U. Campos-Delgado, J.M. Luna-Rivera, A.J. Rojas, C.A. Gutierrez. “Evaluation of Power Allocation in Wireless Networks under Multiplicative Noise and Interference Uncertainty”. XVI Congreso Latinoamericano de Control Automático, Cancún Quintana Roo, México, October 2014, pp. 1-6. http://amca.mx/memorias/amca2014/media/files/0220.pdf

(29) H.O. Garces, A.J. Rojas, L.E. Arias, O.F. Farias. “A comparative study of boiler optimization via flame spectrum analysis”. 2014 IEEE Multi-Conference on Systems and Control, Nice/Antibes, France, October 2014, pp. 1668-1674. DOI: 10.1109/CCA.2014.6981552

(30) H.O. Garces, L.E. Arias, A.J. Rojas. “Baseline estimation in flame’s spectra by using neural networks and robust statistics”. SPIE Optics + Photonics 2014, San Diego, USA, August 2014, pp. 1-11. DOI: 10.1117/12.2060693

(31) A.J. Rojas. “Robust Signal-to-Noise Ratio Constrained Feedback Control”. 2014 American Control Conference, Portland, USA, June 2014, pp. 5651–5656. DOI: 10.1109/ACC.2014.6858755

(32) J.M. Luna-Rivera D.U. Campos-Delgado and A.J. Rojas. “Analysis of Distributed Power Allocation in Wireless Networks under Multiplicative Noise and Interference Uncertainty”. 2014 American Control Conference, Portland, USA, June 2014, pp. 2136–2141. DOI: 10.1109/ACC.2014.6859456

(33) F.I. Donoso, R.L. Figueroa, E.A. Lecannelier, E.J. Pino, A.J. Rojas,“Clustering of Atrial Fibrillation Based on Surface ECG Measurements”, 35th Annual International Conference of the IEEE EMBS, Osaka, Japan, July 2013, pp. 4203–4206. DOI: 10.1109/EMBC.2013.6610472

(34) A.J. Rojas,“Control over direct and feedback path signal-to-noise ratio constrained channels”, 2013 American Control Conference, Washington, DC, USA, June 2013, pp. 3183–3188. DOI: 10.1109/ACC.2013.6580320

(35) A.J. Rojas,“Signal-to-Noise Ratio Limitations in Structured Feedback Control”, 2012 American Control Conference, Montreal, Canada, June 2012, pp. 5194–5201. DOI: 10.1109/ACC.2012.6315467

(36) A.J. Rojas, “Water Canals Control over Communication Channels: a Preliminary Study”, 9th IEEE International Conference on Control and Automation, Santiago, Chile, December 2011, pp. 662–667. DOI: 10.1109/ICCA.2011.6137963

(37) F. Donoso, E. Lecannelier, E. Pino, A.J. Rojas, “Reliable Atrial Activity Extraction from ECG Atrial Fibrillation Signals” , III Chilean Workshop on Pattern Recognition (CWPR 2011), a special session of the Iberoamerican Congress on Pattern Recognition (CIARP 2011), Pucón, Chile, November 2011, pp. 621–629. DOI: 10.1007/978-3-642-25085-9_7

(38) A.J. Rojas, “Digital Output Feedback Control over Signal-to-Noise Ratio Limited Communication Channels”, 18th IFAC World Congress, Milan, Italy, August 2011, pp. 12587–12592. DOI: 10.3182/20110828-6-IT-1002.03137

(39) A.J. Rojas, “Infimal SNR for Output Disturbance Rejection”, 18th IFAC World Congress, Milan, Italy, August 2011, pp. 14398–14403. DOI: 10.3182/20110828-6-IT-1002.01681

(40) A.J. Rojas, “On the Discrete-Time Algebraic Riccati Equation and Its Solution in Closed- Form”, 18th IFAC World Congress, Milan, Italy, August 2011, pp. 162–167. DOI: 10.3182/20110828-6-IT-1002.00410

(41) A.J. Rojas, “Signal-to-Noise Ratio Constrained Feedback Control over Fading Channels”, 18th IFAC World Congress, Milan, Italy, August 2011, pp. 8799–8804. DOI: 10.3182/20110828-6-IT-1002.00411

(42) A.J. Rojas, “On the Equivalence of Two Recent Control over Network Results”, 49th IEEE Conference on Decision and Control, Atlanta, USA, December 2010, pp.4940–4945. DOI: 10.1109/CDC.2010.5717591

(43) A.J. Rojas, “On the Continuous-Time Algebraic Riccati Equation and its Closed-Form Solution”, 49th IEEE Conference on Decision and Control, Atlanta, USA, December 2010, pp.1330–1335. DOI: 10.1109/CDC.2010.5717592

(44) A.J. Rojas, “Digital and Sampled-Data Output Feedback Control over Signal-to-Noise Ratio Constrained Communication Channels”, 2010 American Control Conference, Baltimore, Maryland, USA, pp.259–264. DOI: 10.1109/ACC.2010.5530600

(45) A.J. Rojas, “On the Solution of a Class of Algebraic Riccati Equations with Repeated Unstable Eigenvalues”, 2010 American Control Conference, Baltimore, Maryland, USA, pp. 1111–1116. DOI: 10.1109/ACC.2010.5530962

(46) A.J. Rojas, “ Feedback Control over Signal-to-Noise Ratio Constrained Communication Channels with Channel Input Quantisation”, 2010 American Control Conference, Baltimore, Maryland, USA, pp.265–270. DOI: 10.1109/ACC.2010.5530601

(47) B.I. Godoy, J.C. Aguero, G.C. Goodwin, and A.J. Rojas, “An algorithm for time-varying commodity price models”, 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference, Shanghai, China, December 2009, pp.1563–1568. DOI: 10.1109/CDC.2009.5399546

(48) A.J. Rojas, “Closed-Form Solution for a Class of Continuous-Time Algebraic Riccati Equations”, 48th IEEE Conference on Decision and Control and 28th Chinese Control Conference, Shanghai, China, December 2009, pp.5051–5056. DOI: 10.1109/CDC.2009.5399715

(49) B.J. Burke, A.J. Rojas, J.S. Welsh and G.J. Adams, “A Simple Bumpless Transfer Mechanism with Application to Multi-Effect Evaporators”, 7th IEEE International Conference on Control and Automation, Christchurch, New Zealand, December 2009, pp.575–580. DOI: 10.1109/ICCA.2009.5410436

(50) A.J. Rojas, G.C. Goodwin and C.P. Renton, “Short or Long Memory Estimators?”, SYSID 2009, Saint-Malo, France, July 2009, pp. 1038–1043. DOI: 10.3182/20090706-3-FR-2004.00172

(51) A.J. Rojas, “Closed-Form Solution for a Class of Discrete-Time Algebraic Riccati Equations”, 2009 American Control Conference, St. Louis, USA, June 2009, pp. 482–487. DOI: 10.1109/ACC.2009.5159891

(52) G. Mirzaeva, A.J. Rojas, “Advanced Control Strategies for Stability Improvement of Natural Field Orientation”, 2008 IEEE Industry Applications Society Annual Meeting, Edmonton, Alberta, Canada, pp. 1–8. DOI: 10.1109/08IAS.2008.207

(53) G. Mirzaeva, A.J. Rojas, “Stability Analysis of the Natural Field Orientation Controlled Induction Machine Drive”, 13th International Power Electronics and Motion Control Conference, Poznan, Poland, 2008, pp. 1155–1162. DOI: 10.1109/EPEPEMC.2008.4635424

(54) A.J. Rojas, R.H. Middleton, J.S. Freudenberg and J.H. Braslavsky, “Input Disturbance Rejection in Channel Signal-to-Noise Ratio Constrained Feedback Control”, 2008 American Control Conference, Seattle, USA, June 2008, pp. 3100–3105. DOI: 10.1109/ACC.2008.4586969

(55) A.J. Rojas, R.H. Middleton and J.S. Freudenberg, “Infimal Feedback Capacity for a Class of Additive Coloured Gaussian Noise Channels”, 17th IFAC World Congress, Seoul, Korea, July 2008, pp. 5173–5178. DOI: 10.3182/20080706-5-KR-1001.00869

(56) A.J. Rojas and J.I. Yuz, “Repeated Poles in Feedback over a Class of Signal-to-Noise Ratio Constrained Channels”, 17th IFAC World Congress, Seoul, Korea, July 2008, pp. 5179–5184. DOI: 10.3182/20080706-5-KR-1001.00870

(57) G.J. Adams, B.J. Burke, G.C. Goodwin, J.T. Gravdahl, R.D. Peirce and A.J. Rojas, “Managing steam and concentration disturbances in multi-effect evaporators via nonlinear modelling and control”, 17th IFACWorld Congress, Seoul, Korea, July 2008, pp. 13919–13924. DOI: 10.3182/20080706-5-KR-1001.02356

(58) A.J. Rojas, J.H. Braslavsky and R.H. Middleton, “Output Feedback Sensitivity Functions Under Signal to Noise Ratio Constraint”, 2007 American Control Conference, New York, USA., July 2007, pp. 287–292. DOI: 10.1109/ACC.2007.4282601

(59) A.J. Rojas, J.H. Braslavsky and R.H. Middleton, “Feedback Control over Signal to Noise Ratio Constrained Communication Channels”, SIAM Conference on Control and its Appli- cations, San Francisco, USA, June/July 2007. Url: http://meetings.siam.org/sess/dsp_talk.cfm?p=23145

(60) A.J. Rojas, J.S. Freudenberg, J.H. Braslavsky and R.H. Middleton, “Optimal Signal to Noise Ratio in Feedback over Communication Channels with Memory”, 45th IEEE Conference on Decision and Control, San Diego, USA, December 2006, pp. 1129–1134. DOI: 10.1109/CDC.2006.377171

(61) A.J. Rojas, J.H. Braslavsky and R.H. Middleton, “Output Feedback Stabilisation over Bandwidth Limited, Signal to Noise Ratio Constrained Communication Channels”, 2006 American Control Conference, Minneapolis, USA, June 2006, pp. 2789–2794. DOI: 10.1109/ACC.2006.1656646

(62) A.J. Rojas, J.H. Braslavsky and R.H. Middleton, “Control over a Bandwidth Limited Signal to Noise Ratio Constrained Communication Channel”, joint 44th IEEE Conference on Decision and Control and European Control Conference, Seville, Spain, December 2005, pp. 197–202. DOI: 10.1109/CDC.2005.1582154

(63) A.J. Rojas and R.H. Middleton, “Phase Analysis for 2-D weakly coupled oscillatory systems”, 2005 American Control Conference, Portland, USA, June 2005, pp. 1587–1592. DOI: 10.1109/ACC.2005.1470194