Browsing by Author "Chandra, D"

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Citation - WoS: 63
Citation - Scopus: 98
Improved Routh-Pade Approximants: a Computer-Aided Approach
(Ieee-inst Electrical Electronics Engineers inc, 2004) Singh, V; Chandra, D; Kar, H; Department of Mechatronics Engineering
A geometric programming based computer-aided method to derive a reduced order (rth-order) approximant for a given (stable) SISO linear continuous-time system is presented. In this method, stability and the first r time moments/Markov parameters are preserved as well as the errors between a set of subsequent time moments/Markov parameters of the system and those of the model are minimized.
Citation - WoS: 14
Citation - Scopus: 18
Optimal Routh Approximants Through Integral Squared Error Minimisation: Computer-Aided Approach
(inst Engineering Technology-iet, 2004) Singh, V; Chandra, D; Kar, H; Department of Mechatronics Engineering
A computer-aided method for obtaining a reduced-order approximant of a given (stable) single-input single-output system based on the minimisation of integral squared error (ISE) pertaining to a unit-step input is presented. Both the numerator and denominator coefficients of the model are treated as free parameters in the process of optimisation. The method has a built-in stability-preserving feature. The problem of formulating the ISE is circumvented by introducing a set of equality constraints.