• Accessibility and system reduction of nonlinear time-delay control systemsBartosiewicz, Zbigniew; Kaldmäe, Arvo; Kawano, Yu; Kotta, Ülle; Pawluszewicz, Ewa; Simha, Ashutosh; Wyrwas, MałgorzataIEEE Transactions on Automatic Control2021 / p. 3781−3788 https://doi.org/10.1109/TAC.2020.3028566 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-85111748229&origin=inward&txGid=619909cb4363e201acb564769b2a8e06 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000678334500033
• Event-based control for differentially flat systems: application to autonomous underwater vehicleKaldmäe, Arvo; Kotta, Ülle; Meurer, Christian; Simha, AshutoshIFAC-PapersOnLine2019 / p. 180-185 https://doi.org/10.1016/j.ifacol.2019.11.775 https://www.scopus.com/sourceid/21100456158 https://www.scopus.com/record/display.uri?eid=2-s2.0-85077459586&origin=inward&txGid=d260ab533e46e0d870f99eed0d230870 https://www.webofscience.com/wos/woscc/full-record/WOS:000503828500032
• Extended observer form for nonlinear system with disturbances : Algorithm and applicationKaparin, Vadim; Simha, Ashutosh; Chowdhury, Nilanjan Roy; Kotta, Ülle; Levron, Yoash; Belikov, Juri2024 18th International Conference on Control, Automation, Robotics and Vision (ICARCV)2024 https://doi.org/10.1109/ICARCV63323.2024.10821609
• Extended observer form with vector fieldsMullari, Tanel; Kotta, Ülle; Kaldmäe, Arvo; Kaparin, Vadim; Simha, AshutoshInternational journal of control2024 / p. 2399 - 2412 https://doi.org/10.1080/00207179.2023.2274060 https://www.scopus.com/sourceid/12342 https://www.scopus.com/record/display.uri?eid=2-s2.0-85175466038&origin=inward&txGid=9cccc30d873622b5905d797d55be6b43 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20CONTROL&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001090328500001
• Extended observer forms for submersive discrete-time systemsSimha, Ashutosh; Kaparin, Vadim; Mullari, Tanel; Kotta, ÜlleIEEE Transactions on Automatic Control2023 / p. 2684 - 2688 https://doi.org/10.1109/TAC.2023.3336253 https://www.scopus.com/sourceid/17339 https://www.scopus.com/record/display.uri?eid=2-s2.0-85178001904&origin=resultslist&sort=plf-f&src=s&sid=48e2b7e0307cf7fdcb956e8ad58766ae&sot=b&sdt=b&s=TITLE-ABS-KEY%28%22Extended+Observer+Forms+for+Submersive+Discrete-Time+Systems%22%29&sl=77&sessionSearchId=48e2b7e0307cf7fdcb956e8ad58766ae&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20T%20AUTOMAT%20CONTR&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:001194518600008
• A flapped paddle-fin for improving underwater propulsive efficiency of oscillatory actuationSimha, Ashutosh; Gkliva, Roza; Kotta, Ülle; Kruusmaa, MaarjaIEEE robotics and automation letters2020 / p. 3176-3181 https://doi.org/10.1109/LRA.2020.2975747 https://www.scopus.com/sourceid/21100900379 https://www.scopus.com/record/display.uri?eid=2-s2.0-85081661729&origin=inward&txGid=d33e5f0618f56df9f42f4691a75a64d3 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IEEE%20ROBOT%20AUTOM%20LET&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000526704900006
• FLHex: a flapped-paddle hexapod for all-terrain amphibious locomotionBurzynski, Piotr; Simha, Ashutosh; Kotta, Ülle; Pawluszewicz, Ewa; Sastry, ShivakumarBulletin of the Polish Academy of Sciences Technical Sciences2021 / art. e139007, 9 p. : ill https://doi.org/10.24425/bpasts.2021.139007 https://www.scopus.com/sourceid/13427 https://www.scopus.com/record/display.uri?eid=2-s2.0-85122255049&origin=inward&txGid=661f66d447de4b5bbbcfbed2fa78ad65 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=B%20POL%20ACAD%20SCI-TECH&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000763606400008
• A geometric approach to position tracking control of a nonholonomic planar rigid body : case study of an underwater vehicleSimha, Ashutosh; Kotta, ÜlleProceedings of the Estonian Academy of Sciences2020 / p. 215-227 : ill https://doi.org/10.3176/proc.2020.3.05 https://kirj.ee/public/proceedings_pdf/2020/issue_3/proc-2020-3-215-227.pdf https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85086738679&origin=inward&txGid=c3f2475379e3c78b3b5be83b9e05ded9 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000572677900005
• Intrinsic conditions for extended observer forms for nonlinear systemsSimha, Ashutosh; Respondek, Witold; Kaldmäe, Arvo; Kaparin, Vadim; Kotta, Ülle2018 IEEE Conference on Decision and Control (CDC), 17-19 Dec. 2018, 17-19 Dec. 2018 : proceedings2018 / p. 1373-1378 https://doi.org/10.1109/CDC.2018.8619122 https://www.scopus.com/sourceid/87424 https://www.scopus.com/record/display.uri?eid=2-s2.0-85062170522&origin=inward&txGid=2e5b62ae65a724ba15a4caeda8905c9f https://www.webofscience.com/wos/woscc/full-record/WOS:000458114801050
• Iterative Learning based feedforward control for Transition of a Biplane-Quadrotor Tailsitter UASRaj, Nidhish; Simha, Ashutosh; Kothari, Mangal; Abhishek; Banavar, Ravi N.2020 IEEE International Conference on Robotics and Automation (ICRA), 31 May-31 Aug. 2020, Paris, France : proceedings2020 / p. 321-327 : ill https://doi.org/10.1109/ICRA40945.2020.9196671 https://www.scopus.com/sourceid/25456 https://www.scopus.com/record/display.uri?eid=2-s2.0-85092695240&origin=inward&txGid=c3942f72a836c56d9cfedc0321ea19fb https://www.webofscience.com/wos/woscc/full-record/WOS:000370974901134
• A linear filtering framework for nonlinear systems based on extended output injectionSimha, Ashutosh; Kotta, ÜlleIFAC-PapersOnLine2019 / p. 274-279 https://doi.org/10.1016/j.ifacol.2019.11.791 https://www.scopus.com/sourceid/21100456158 https://www.scopus.com/record/display.uri?eid=2-s2.0-85077453976&origin=inward&txGid=4064756dad51e4ba3f2043f2a82c20e4 https://www.webofscience.com/wos/woscc/full-record/WOS:000503828500048
• Motor failure tolerant control system with self diagnostics for unmanned multirotorsAmbroziak, Leszek; Simha, Ashutosh; Pawluszewicz, Ewa; Kotta, Ülle2019 24th International Conference on Methods and Models in Automation and Robotics (MMAR)2019 / p. 422–427 : ill https://doi.org/10.1109/MMAR.2019.8864726
• Nonlinear orientation controller for a compliant robotic fish based on asymmetric actuationMeurer, Christian; Simha, Ashutosh; Kotta, Ülle; Kruusmaa, Maarja2019 International Conference on Robotics and Automation : ICRA 2019, Palais des Congres de Montreal, Canada, 20-24 May, 20192019 / Art. 8793892 ; p. 4688-4694 https://doi.org/10.1109/ICRA.2019.8793892 https://www.scopus.com/sourceid/25456 https://www.scopus.com/record/display.uri?eid=2-s2.0-85071486622&origin=inward&txGid=582d4539cc0fba3224764252cebfb6c1 https://www.webofscience.com/wos/woscc/full-record/WOS:000494942303057
• A Riemannian geometric approach to output tracking for nonholonomic systemsSimha, Ashutosh; Raha, SoumyenduIFAC-PapersOnLine2019 / p. 144-149 https://doi.org/10.1016/j.ifacol.2019.11.769 https://www.scopus.com/sourceid/21100456158 https://www.scopus.com/record/display.uri?eid=2-s2.0-85077474188&origin=inward&txGid=6e2c6d3dec2ce06b95eac8094c2de7ad https://www.webofscience.com/wos/woscc/full-record/WOS:000503828500026
• Structure preserving reduced attitude control of gyroscopesRaj, Nidhish; Colombo, Leonardo J.; Simha, AshutoshAutomatica2021 / art. 109471, 7 p. : ill https://doi.org/10.1016/j.automatica.2020.109471 https://www.scopus.com/sourceid/24909 https://www.scopus.com/record/display.uri?eid=2-s2.0-85100161832&origin=inward&txGid=55f0c47a9645c640604f52759fe3c858 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=AUTOMATICA&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000647691500012