A tool set for teaching design-for-testability of digital circuitsKostin, Sergei; Orasson, Elmet; Ubar, Raimund-JohannesEWME 2016 : 11th European Workshop on Microelectronics Education : May 11-13, 2016, Southampton, UK2016 / [6] p. : ill http://dx.doi.org/10.1109/EWME.2016.7496466 Observable space of the nonlinear control system on a homogeneous time scaleKaparin, Vadim; Kotta, Ülle; Wyrwas, MałgorzataProceedings of the Estonian Academy of Sciences2014 / p. 11-25 https://artiklid.elnet.ee/record=b2665198*est Observer-based residual generation for nonlinear discrete-time systemsKaldmäe, Arvo; Kotta, ÜlleProceedings of the Estonian Academy of Sciences2018 / p. 325-336 http://www.kirj.ee/public/proceedings_pdf/2018/issue_4/proc-2018-4-325-336.pdf https://doi.org/10.3176/proc.2018.4.01 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS On the stopping criteria in nonlinear unknown input observability conditionSarafrazi, Mohammad Amin; Kotta, Ülle; Bartosiewicz, ZbigniewIEEE transactions on automatic control2022 / p. 4733-4737 https://doi.org/10.1109/TAC.2022.3160133 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Optimal placement of branch PMUs for specified redundancy and line observabilityTuttelberg, Kaur; Kilter, Jako2015 IEEE Power & Energy Society General Meeting (PESGM 2015) : Denver, CO, USA, July 26-30, 20152015 / [5] p. : ill http://dx.doi.org/10.1109/PESGM.2015.7286453